Category Archives: Fertilizers

Enfermedades de madera de la vid

Strategies for grapevine trunk diseases

 

Enfermedades de madera de la vid

Grapevine trunk diseases are among the most serious problems affecting crops at the present time. When summer comes, cultivation of grapevine enters a decisive period. Preserving it in optimal conditons is fundamental, as it results in a pivotal element supporting many local and regional economies.

This is the reason why studies on grapevine trunk diseases proliferate at a key moment for the sector. Farmers are struggling to look after the current harvest, but cannot overlook the following season. In July, the city of Reims (France) hosts an international conference with a large group of experts on this subject.

Grapevine trunk diseases have become more evident in the last decade because of the advances in knowledge concerning fungal species taking part in the process of wood deterioration.

Intensified production, the aging of vineyards and the long period of time that may elapse between the penetration of fungi and the display of the first symptoms (in some cases, grapevine trunk diseases may already exist in those seedlings coming from the plant nursery) are factors that may explain why farmers are increasingly being affected by these diseases.

The absence of registered fungicidal active substances capable of dealing with these pathogens leads to reinforce preventive measures to restrain fungi from entering or penetrating wood. Practices and knowledge developed for years suggest farmers to use a pruning system that minimizes cuts, since the transmission of grapevine trunk diseases is produced through pruning wounds.

In addition to avoiding thick wounds, not only do cultural practices recommend pruning in dry weather conditions but it is also important to let a few days pass after an episode of rainfall.

Advances in grapevine trunk diseases also point to use hot-water treatment as a method to reduce infections caused by wood fungi in propagating material. Application of hot-water treatment has been approached by David Gramaje, researcher of the Instituto de Ciencias de la Vid y el Vino (ICVV) at the international meeting promoted by Phytoma in March 2017.

Grapevine trunk diseases: activation of the defense system

Preventive actions also recommend using treatments capable of stimulating plant’s defense system. Superbrotal is a natural solution produced by Seipasa. This product performs as an activator of the processes involved in sprouting and plant structuring. Superbrotal stimulates the defense mechanisms due to its main compound, which induces the synthesis of those proteins involved in the immune system.

Not only does Superbrotal activate self-defenses, but it also strengthens the vascular bundles of the plant, generating a better translocation of nutrients in favor and against the gravitational gradient. It results in a balanced crop, with a powerful, structured and efficient plant development. Crops gain in size and foliar architecture, improving its ability to overcome stresses.

To set an example, there is a trial conducted by Seipasa in grapevine between 2014 and 2016 (see figure 1). The results show the inducing effect of Superbrotal. The trial was performed on a plot where vascular diseases had been experienced before. After the first campaign in 2014, disease incidence increased in the control area. However, as observed in figure 1, Superbrotal was able to improve sap flow by reducing the percentage of affected vineyards in the following campaigns (2015 and 2016).

Figure 1.- Incidence of grapevine trunk disease.

Grapevine trunk disease

Stimulation of the defense system helps to prevent stresses. Prevention may become a suitable strategy to avoid the penetration or progression of fungal diseases.

Bioestimuante radicular

Root biostimulant in spring vegetable crops

Bioestimuante radicular

Applying a root biostimulant in spring vegetables crops for a powerful development results in a pivotal factor to ensure an optimum yield.

Crops must cope with a wide range of unfavorable situations so as to achieve optimum performance. Together with pests and diseases, and within the context of climate change, there are more and more situations of environmental stress occurring. These factors lead to production decline, both in quality and quantity. Thus, regulating plant growth ends in a highly important factor, which will mark the productivity of crops.

In crops, a powerful starting is always synonymous with safe harvesting. Therefore, the treatments applied in initial stages play an essential role in the later development. With the calendar well into the month of May, the last frosts of spring have been left behind. The weeks that arrive ahead will take us into summer.

Thus, hot days with many hours of sunshine begin to become common, creating a favorable scenario to obtain the maximum yield in summer crops like tomato, pepper, eggplant, melon or watermelon. The cultivation of vegetables in spring has begun during winter months by preparing the seedbeds. Later, in spring, we proceed to field transplantation.

In southern regions like Almeria, this calendar is slightly modified when it comes to greenhouse plantations. Seedbeds have been prepared in July, and transplantation is delayed until the months of August-September.

Irrespective of the calendar, the application of a root biostimulant is well recommended within the first stages of cultivation. By using it, a broad, dense and branched root development is promoted in the plant.

A better plant development results in crops being more tolerant to the most unfavorable environmental conditions. Crops are also more capable of resisting disease entry. In addition, it allows better absorption of nutrients, so that apart from achieving better yields (and fewer losses), the quality of the crop will be higher.

Root biostimulant: growth and nutrient uptake

Seiland is a biostimulant to be applied at the time of transplantation, just within the first stage of cultivation in the field. The solution produced by Seipasa contains a mixture of microorganisms colonizing the ecological niche that roots occupy and creating a biological barrier that is beneficial for crops.

Seiland is high in organic matter. It provides carbon and nitrogen to the soil. These elements are needed for the installation and development of microorganisms. Its action allows to colonize the root area so as to protect it from being attack by pathogens.

The microorganisms of Seiland provide substances activating defense mechanisms, as well as elements and substances beneficial to plant development. The application of Seiland also allows to stimulate the activity of the microbial flora of the soil. Therefore, nutrients are more accessible to plants, allowing a more efficient use of fertilizers.

The application of a root biostimulant in spring vegetable crops is especially visible from initial stages. Not only does this process contribute to a correct plant development, but it also helps the plant to complete its cycle properly. It means not being conditioned by the different stresses in initial stages, when crops are more vulnerable.

calcio en los cultivos

Calcium in crops: why proper assimilation is important

calcio en los cultivos

Calcium in crops plays a key role in agricultural development. Its existence guarantees firmer fruits. Agricultural calcium is necessary not only in structural strengthening of walls but also in the elasticity of the vegetal tissue. It is essential to have resistant and healthy plants.

Calcium shortage severely affects the quality of fruits and crop yield. This is the reason why an inappropriate assimilation can cause losses in the market value. Fortunately, there are treatments to improve calcium assimilation in crops. Its application is markedly necessary at the beginning of spring, when climatic conditions such as thermal amplitude between day and night can subject plants to stressful situations.

Calcium in crops is transported internally by xylem, but calcium has low mobility within the plant. Translocation results in a difficult process, since only a small percentage of calcium is translocated to the fruits from the surrounding leaves.

There are many climatic factors affecting calcium assimilation in crops. High temperatures on sunny days, wet and dry winds, and low relative humidity may become factors promoting high levels of transpiration. When this transpiration stream is too high towards the foliar organs, contribution of calcium to the fruit is restricted. In other words, for calcium is more difficult to reach those organs with low transpiration rate.

As we saw in an earlier entry, calcium deficiency in crops is observed in alterations such as BER (blossom end rot) in tomato and pepper. In strawberry or lettuce symptoms are perceived at the end of the expanding leaves (tip burn).

Guaranteeing contribution of calcium in crops

By evaluating calcium status in plants, it is possible to diagnose disorders like BER. In order to prevent such deficiencies, Seipasa has developed the Calcisei line of products. These products, formulated with calcium, play a pivotal role in crop development. Besides contributing to prevent deficiencies such as BER, tip burn or bitter pit in tomato and apple, the Calcisei line is specifically prepared for the structural strengthening of cell walls and membranes, as well as the management of soils with high content of salt.

Within this line, Calimax is a treatment designed to prevent calcium deficiencies in crops while confronting physiopathies. Calimax improves soil structure, promotes optimal root development and regulates imbalances due to lack of calcium.

Guadal Ca has been produced to avoid problems of internal decay and cracked fruits, as well as to confront apical rot, tip burn in horticultural crops. Lack of calcium usually concentrates on young leaves and fruits, since these are the organs having major transpiration difficulties. Guadal Ca is especially recommended for foliar applications in the second half of the crop cycle given the rapid absorption and total safety.

Apart from the contribution of calcium, the organic matter content of the Calcisei line brings significant benefits to the crop, especially in the post-harvest quality.

Soil correctors

Farmers are aware of how important is to have calcium in soils. Calcium deficiencies in plants can be observed in soils where there is an excess of nitrogen fertilizer, in substrates with alkaline pH, with episodes of water stress or with salt excess, among other factors. Within the Calcisei line, Miñosal is a corrector of saline and saline-sodic soils. It can be used both in soils having salinity problems and in areas where irrigation water quality makes it necessary. 

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tratamientos del olivo

Treatments for olive trees after winter

Tratamientos-para-el-olivo

Treatments for olive trees after winter are widely recognized to prevent diseases and to obtain a homogenous harvest each season, thus forgetting the feared alternation of production. Preparatory treatments are applied at an early stage and aim to adapt the olive tree to achieve a good flowering.

The months of January and February are suitable to apply pruning work at the olive tree, allowing to set a proper structure within the production of the following campaign.

Although depending on climate and varieties, towards the end of March the flower buds have already begun to appear. In this second phase, the buds gradually thicken until the generation of the floral bud begins to be observed. Henceforth, the plant will continue its development with the formation of the cluster.

At this point, treatments for olive trees after winter recommend the use of products such as Kynetic4. Its use allows to enhance the flowering of the crop, an essential step to assure the harvest of the following year. Kynetic4 produces an energetic stimulation at times of increased crop demand. Its application contributes to obtain a better flowering and the following setting.

Treatments for olive trees: fungal diseases

At this stage of the harvest, it is utterly necessary to pay attention to the possible occurrence of fungal diseases such as repilo. Treatments for olive trees after winter also include the application of preventive products based on copper.

The copper placed on the leaf creates a protective barrier that precludes the spore from germinating when it appears. The use of Glucosei favors the creation of this protective barrier and stimulates the generation of self-defenses. Due to its formulation, Glucosei minimizes the possible negative effects caused by the copper on the soil.

March results a time of the year when the latest winter rains and the earliest of the spring may become commonplace. The use of Glucosei also helps to ensure that crops are protected when spring budding occurs.

Micronutrient correctors

Specialists also recommend the application of a micronutrient corrector as a treatment for olive tres after winter. The plant assimilates them during the budding, overcoming any shortage of micronutrients that may occur and reinforcing the subsequent phase of flowering. Based on a combination of zinc, manganese, iron, boron and molybdenum, Seipafol Mix has been specifically designed to beat any shortage of micronutrients that may occur during the different stages of plant growth.

Not only does the use of natural solutions bring greater energy to the vegetable, but It also contributes to maintaining the balance of the agricultural ecosystem, respecting sustainability and revitalizing the environment. Thus, besides contributing to the development of the crop, natural treatments help to guarantee the conditions in which both olive trees and fields are left in proper conditions for future campaigns.

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Fertilizers for tomato fattening

Fertilizers for tomato fattening

 

Best fertilizers for tomato fattening contain organic matter, potassium, fulvic and humic acids, and microelements.

Fertilizante para engorde de tomate

Achieving the highest harvest percentage with proper size and color is the goal of all farmers. This is very important to market the products. Hence the importance of assessing the application, at the appropriate time and following the needs of the plant, of fertilizers for tomato fattening and, where appropriate, specialized biostimulants.

When the fruit setting phase, the plant requires an extra contribution of potassium. Deficiency of this element can lead to an irregular maturation, preventing the full formation of the fruits in many cases.

Symptoms of potassium deficiency can be observed by small fruits with non-uniform coloration being produced, with yellow spots in areas that do not mature enough. It also leaves weak stalks, chlorosis and scorched edges on the leaves, poor resistance to pests and diseases, as well as increased susceptibility to frost and droughts.

Fertilizers for tomato fattening: potassium and much more

The relationship between potassium, fruit growth and maturation shows the importance of this macro-element in the quality of crop production. However, other factors must be taken into account to ensure the size, color and flavor of the tomato, without harming the characteristics of each variety.

Besides the need for a nutrient balance, with an adequate balance of other macro-elements and micro-elements such as Boron, Molybdenum, Calcium or Magnesium, environmental factors such as temperature must be taken into account. Between 24 and 28 degrees (Celsius) or solar lighting are  optimal for maturation. The characteristics of the substrate significantly influence the process, since this is the natural source of nutrients.

Fertilizers for tomato fattening: the importance of the substrate

The most demanding agricultural producers look beyond the specific application of mineral nutrition. They pefer to ensure not only the size of the fruits in that campaign, but also the richness of the soil that gives them greater guarantee of success for the next crops. What is key is to take advantage of all nutrients in the substrate while maintaining the balance of the substrate for short and long term benefit.

The most suitable tomato fattening fertilizers are those combinig organic matter with high content of potassium. Some very specialized references even contribute fulvic and humic acids, vitamins and microelements. This is the case of Terrasei Fruit, from SEIPASA.

The role of organic matter in tomato fattening fertilizers

Potassium fertilizers with high content of organic material such as Terrasei Fruit, significantly reduce potassium fixation inside the clays and its leaching loss in sandy soils. They increase both the concentration of potassium available and in solution in the soil. Its use favors the structure of the substrate, but also improves the absorption of potassium provided by conventional fertilizers.

Fulvic and humic acids contained in this reference are essential to regulate the physical and chemical properties of the soil and also to favor the development of beneficial microorganisms. This fertilizer has an immediate and slow release effect, helping to provide nutrients gradually.

Early maturation by applying fertilizers for tomato fattening

With the same conditions of temperature and illumination, it is possible to obtain a greater precocity and organoleptic quality in the process of maturation. This is because of fertilizers for tomato fattening. When it comes to Terrasei Fruit, results of the studies reveal considerable advance in maturation. As shown in figure 1 (corresponding to an experiment in which four applications of the product were carried out from fruit setting to harvesting) harvesting of the first fruits after maturation (days to first pick) was advanced 21 days.

Figure 1.- Days to first pick.

Fertilizers for tomato fattening

Fertilizers for tomato fattening: performance, size and color

Apart from favoring fruit maturation, field studies confirm that Terrasei Fruit ensures high performance (see figure 2) and a marked improvement in size (see figure 3), color (see figure 4), plant growth, length root and sugar content. Additional test data can be found here.

Figure 2.- Performance

Fertilizers for tomato fattening

Figure 3.- Fruit size

Fertilizers for tomato fattening

Figure 4.- Fruit color (%)

Fertilizers for tomato fattening

Advantages of liquid format in tomato fattening fertilizers

Organo-mineral fertilizers in liquid form such as Terrasei Fruit reach deeper soil profile compared to solid organic matter.

Biostimulants for tomato maturation and fattening

Biostimulants result in a specialized option so as to induce maturation and fattening of fruits and, depending on the characteristics of the crop and needs, could be combined with fertilization.

A reference specially addressed to this purpose, foliar and root application, is Sweetsei. This is a biostimulant of rapid assimilation. Besides advancing maturation, it increases fruit size while achieving uniformity and excellent color. Furthermore, it obtains greater elasticity, hydration and firmness due to an organic polymer incorporated in its composition. In the same way, it improves fruit behavior in post-harvest and favors the formation of sugars, improving the index of Brix degrees.

Seipasa produces natural treatments for agriculture with zero residues. Should you need more information on tomato fattening products, you can access it through these links: http://www.seipasa.com/nutricionales/terrasei-engorde/ and http://en.seipasa.com/biostimulants/sweetsei/. You can also consult SEIPAS’s experts at http://en.seipasa.com/request/request-information/terrasei-engorde/

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Abonos orgánicos para olivos. Campos de Andalucía

Organic fertilizers for olive trees

Organic fertilizers for olive trees. Advantages versus manure and conventional fertilizers

Organic fertilizers for olive trees

The organic fertilizers for olive trees are an essential element for the soil health of these crops. The advantages of an organic bottom fertilizer, used in the first cycles, versus manure or conventional fertilizers, are not only observed in the most immediate campaign, but also in the plant health and the quality of the long-term production.

Although nutrients are naturally found in the substrate, they are not replenished fast enough to maintain soil fertility. Hence, it is necessary to make additional contributions. But which fertilizer to use?

Before choosing one or the other to include in the subscriber plan it is advisable to carry out a soil and leaf analysis to know the exact needs of each crop. Some parameters such as soil characteristics and composition, type of plant, age, agricultural practices, water status or planting density should be taken into account.

Nowadays, one of the most advanced organic formulations for the basal dressing is Organitro, from SEIPASA, rich in nitrogen and 100% organic.

Organic fertilizers for olive trees vs. dung

– The dung contains high humidity and is not stable. Thus, in contrast to the dung variability, the complete organic fertilizers guarantee the fertilizer units (N, F, K).

– Dung can contain seeds of weeds or pathogens that can be transferred to the crop.

– If some dungs rich in macronutrients such as nitrogen are not mixed with other poorer or plant remains, they tend to be imbalanced despite composting.

– In organic farming, many dungs are not allowed: Those from intensive farms may be contaminated with residues of pesticides, antibiotics or heavy metals.

Organic fertilizers for olive trees vs. conventional fertilizers

– Conventional mineral fertilizer gives the plant nutrients available immediately, but it is easier to apply in excess or deficiency. It does not amend the soil, simply feeds the vegetable.

– The organic fertilizer is less aggressive to the soil. Conventional can salinize the substrate. It can increase toxic salts if applied in large quantities.

– With the use of chemical fertilizers there is a risk of contamination of the underground and surrounding water.

– The application of synthetic fertilizers can also lead to degradation of soil life by eliminating microorganisms useful for plant nutrition.

– Applying organic fertilizers allows the action of the soil microorganisms to degrade the fertilizer to form water soluble compounds, which the plant takes advantage of.

– Organic fertilization also favors the proliferation of bacteria and fungi that benefit the soil and help the best use of nutrients by the plant.

– In short, they improve the structure of the substrate, allow carbon fixation and favor the ability of the crop to retain nutrients and water.

Organic fertilizers of reference for olive trees

Organic fertilizers for olive treesFor the basal dressing, one of the best options is the complete fertilizer with Organitro.

The high organic matter content of this fertilizer substantially improves the physical, chemical and biological properties of the soil.

It is easy to handle in the application thanks to the pelletizing. It is distributed with great uniformity in the soil, allowing an immediate availability when disintegrating in only five minutes in the presence of water and dissolving completely in no more than four hours.  It achieves a maximum valuation of the supplied fertilizer units.

It has a dual nutritional effect: the combination of fast-release nutrients and elements that ensure fertility in the medium term after undergoing mineralization processes. It allows the formation of organo-metallic complexes. Thus, it stabilizes micronutrients of the soil that would otherwise not be usable.

Organitro increases the cation exchange capacity and acts as a buffering agent by reducing the tendency to a sudden change in soil pH when acid or alkaline reaction substances are applied.

To have an oxygenated soil, with good structure and balanced in its nutrients is the ideal thing so that the farmer can obtain good yields, and references like this are basic.

Organic solid and liquid fertilizers

In addition to Organitro, belonging to the Seivital line (solid organic), SEIPASA offers another type of 100% organic fertilizers, guaranteed with the corresponding ecological certificate, and ideal for integrated production.

The liquid organic fertilizers of the line Multisei are also placed as regenerative models of soils for their ability to balance the nutrient substrate, improving its structure, its composition and microbial activity.

They promote the formation of aggregates in the soil that improve the friability of the land facilitating agricultural work and avoiding flooding and root suffocation.

They incorporate in their formulation raw materials of vegetal origin with a high degree of refinement that avoid problems of precipitates and seals in systems of drip irrigation.

The Terrasei line is the answer of SEIPASA to the nutritional needs of crops in different phenological states, since it combines mineral nutrition and the energy and soil structure of organic fertilization.

Organic fertilizers company

SEIPASA is a leader company in R+D+i research, both in phytosanitary products and in organic fertilization, making organic fertilizers available to farmers to improve the yield of olive and other crops.

If you want more information about these products you can access it through this link: http://en.seipasa.com or requesting it through the mail: mailto:consulta@seipasa.com.

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Fertilizantes orgánicos para mejorar el suelo en cultivos intensivos

Organic fertilizers to improve soil in intensive crops

Organic fertilizers Multisei and Terrasei are the greatest impulse for horticultural soil fatigued by the intense activity and poor quality of the water

Organic fertilizers Terrasei y Multisei

Calcareous soils, saline waters and two or three crops per year on the same land. These conditions that combine the horticultural crops of the southeast of Spain carry the risk of soil fatigue, which implies loss of vigor and productive yield of the plants.

The degradation of the structure and physical properties of the substrate accelerates the incidence of chemical and biological factors, such as nutrient deficiency due to exhaustion or blockage, contamination by phytotoxic ions or by pathogenic organisms, competition between microorganisms and cultivated plants, or loss of the biological balance of the soil by the use of disinfectants.

Being aware of this problem, producers are looking for solutions that maintain productivity and quality in their fields, and find great support in specialized organic fertilizers for this purpose such as Multisei and Terrasei.

Organic fertilizers to regenerate soils and increase fertility

Multisei line products of SEIPASA are specially designed to regenerate punished soils due to their high content of organic matter of vegetal origin and of fulvic acids, optimal C/N ratio and incorporation of molasses. “Molasses are the main source of energy of the microorganisms involved in the fermentation of organic fertilizer. So they favor the microbiological activity of the soil, and contain micronutrients, too”, underline the technicians of the area”.

All this leads to an improvement of the structure and composition of the soil, increasing the porosity and, therefore, the capacity of air and water retention, as well as the availability of elements.

The Technical personnel especially emphasize the high solubility of this liquid organic fertilizer, with a high degree of refinement of its raw materials, which avoids problems of obturation in the drip irrigation systems.

Stimulation and root protection

Multisei also enhances the action of biostimulants and root protectors such as Seiland, a product of great capacity in the biological activation of the rhizosphere that becomes essential in the planting phase: “Promoting beneficial microorganisms of the soil provides a protective barrier and a reinforcement of the root system against pathogen attacks and root diseases”.

With the decrease in temperatures, horticulture especially need this boost to activate the plant. “Seiland encourages the crops to emit new roots and acts as biofertilizer because of its ability to fix nitrogen or solubilize phosphorus and because it provides beneficial substances and enzymes”, explain the technicians of SEIPASA.

Nutrition Bioactivators

In addition, the action of Terrasei as a bioactivator of nutrition is essential. As the technical personnel explain, although the references of the Terrasei line (liquid organomineral fertilizers) contain NPK, the true value of their complex formulation lies in the conjugation of these elements with other molecules that complement nutrition and facilitate nutritional absorption, provided that they are capable of unblocking the substratum and liberating the nutrients.

Terrasei products improve the efficiency of chemical fertilizers by increasing the cation exchange capacity and, consequently, the storage of nutrients in the soil. This represents a saving in the long run for the farmer since it allows to reduce the amount of pure synthetic fertilizers to apply.

“They incorporate, in addition to organic matter, fulvic acids and amino acids, which translates into a jolt of energy that allows the vegetable to dedicate metabolic resources to physiological functions”. The possibility of foliar use, besides irrigation, allows a rapid assimilation of nutrients.

For more information on our organic fertilizers you can access the product sheets in the following links: http://en.seipasa.com/nutricionales/multisei/ y http://en.seipasa.com/nutricionales/ or contact SEIPASA by email consulta@seipasa.com.

Organic Fertilizers

 

Organic fertilizers to improve soil in intensive crops

Organic fertilizers in watermelon crop.

 

TERRASEI LINE

Because of history and presence on the market, different formulations of TERRASEI LINE are one of the most important allies in the plant nutrition. The proper combination of organic and mineral components determines the characteristics of TERRASEI LINE; different NPK relations adapt to the needs of crops in their different phenological stages. The organic fraction improves physicochemical properties of agricultural soils and produces the biological activation of the rhizosphere.

  • Optimizes crop yields.
  • Improves crop quality: precocity, size, smoothness and ripening.
  • Nutritionally balanced plantations.
  • Contribution of amino acids, fulvic acids and organic matter.

 

MULTISEI LINE

The MULTISEI LINE includes our liquid organic fertilizer par excellence. This is a range of products that regenerate soil, because  in addition to nurture, improve the structure, composition and microbial activity. The contribution of organic matter recover soil, balancing its content.

  • Improve macro and micronutrients absorption.
  • Increase the cation exchange capacity and the storage of nutrients in the soil.
  • Activate nutrient mineralization processes.
  • Contribute to the formation of soil aggregates that improve soil friability, facilitating farming, avoiding waterlogging and root suffocation.
  • MULTISEI, MULTISEI K and MULTISEI Mg are an important source of macro and micronutrients, especially relevant in intensive crops, nurseries and seedbeds.
  • Improve the efficiency of chemical fertilizers.
  • The liquid formulation is an advantage over the organic solids, because reach the main area of root uptake.
  • MULTISEI, MULTISEI K and MULTISEI Mg contain in their formulation raw materials of plant origin with a high degree of refinement, that avoid precipitation problems and seals in drip irrigation systems.

 

 

Vid y olivos

Vines and olive trees: Soil preparation for a successful campaign

When the time comes to fertilize vines and olive trees, the question to be asked is which product to use to achieve the best results.

The correct soil preparation in order to lend it a nutrient balance is critical for having a good campaign. It is one of the practices that influences the most in the harvest’s production and quality, and must be as respectful as possible of the environment, preventing leachate and runoff.

Although the necessary macronutrients (nitrogen, potassium and phosphorus) are naturally in the soil, they will not replenish fast enough to maintain soil fertility. That is why it is necessary to make additional contributions. But which fertilizer should be used?

Based on the securities that offer organic full fertilizers compared to synthetic fertilizers and even manure (See: The benefits of 100% organic full fertilizers), before choosing one or the other soil and foliar analyses should be carried out in order to grasp the exact needs of each crop.

Not only the characteristics and composition of the substrate must be taken into account, but also the type of plant material, age, agricultural practices, water status or planting density used, among other items. It is also important the observation of the farmer on the development and evolution of plants.

In keeping with these circumstances to try to prevent nutrient deficiencies and excesses, fertilizers can be applied as efficiently as possible through its specific formulation, fractionation and / or its adaptation to the stage of the crop cycle when its availability is the most appropriate.

Fertilizers for new olive trees and vineyards

Fertilizers Organitro and Seivital K

At the current stage of the production cycle of the olive tree, it needs all the energy to develop its leaf mass, and one of the best options – due to its formula –  is full fertilizer Organitro®, which includes much nitrogen and is 100% organic. Accordingly, it is the most appropriate reference for new vines.

Its high organic matter content substantially improves the soil’s chemical, physical, and biological properties. It also increases its capacity of cationic exchange* and acts as a buffer agent to lower the tendency to sudden pH change in the soil when acidic oralkaline reaction substances are applied. It also allows the formation of organometallic complexes, thus stabilizing soil micronutrients that otherwise would not be profitable.

It is crucial to stimulate the plant metabolism and crop revitalization, especially during periods of peak nutrients demand, in order to achieve higher productivity, and references like this are essential.

Vines in production

For vines in production, with higher potassium requirements, you can use specialized solutions such as Seivital K. It is an organic fertilizer with a high percentage of this essential macronutrient, which also makes it the most appropriate when crops are into the flowering and setting periods.

Thanks to its input of organic matter and humic acids, allows farmers not only to improve soil structure by increasing cation-exchange capacity, but also boosts microbial activity and the availability of exchangeable potassium at the time it favors the transformation of this nutrient, which is included in the soil in a form that cannot be absorbed by the plant.

consulta@seipasa.com

*Ability of soil to retain and release cations. The most important cations related to plant growth are calcium (Ca), magnesium (Mg), potassium (K), ammonium (NH4 +), sodium (Na), and hydrogen (H). The first four are nutrients directly involved in plant growth. Sodium and hydrogen have a pronounced effect on the availability of nutrients and moisture.

Abono orgánico brote

The benefits of 100% organic full fertilizers

Full organic fertilizers (with contain the three primary nutrients: nitrogen, phosphorus, and potassium) offer many benefits to crops compared to chemical fertilizers and even manure.

Put against manure variability, they guarantee fertilizer units (N, F, K) while they ensure the absence of weed seeds or pathogens that can migrate from manure to crop. Besides, many kinds of manure are not allowed in organic agriculture: those from intensive livestock farms are likely to be tainted with antibiotics, pesticide residues or heavy metals.

On the other hand, some kinds of manure very rich in macronutrients, such as nitrogen, if not mixed with poorer manure or plant remains, tend to imbalance despite composting.

Regarding synthetic fertilizers, the benefits are more evident, both for the crop and the environment, in the short and especially in the long term.

Although using of inorganic fertilizers contributes with immediately available nutrients to the plant, it is easy to employ them excessively or deficiently.

Chemical fertilizers do not amend the soil

Besides the chance of contamination of surrounding and underground water, and the increase of toxic salts in the soil when applied in large quantities, soil degradation is a significant risk in the single use of chemical fertilizers, since it eliminates useful microorganisms for plant nutrition. The simple fact is synthetic fertilizers fail to amend the substrate – they only feed the plant.

When organic fertilizers are applied, soil microorganisms themselves degrade them until they become water-soluble compounds that plants take advantage from. Another valuable feature is that they achieve the increase of activity in bacteria and fungi that benefit the soil. In fact, this kind of fertilizers boost the proliferation of fungi responsible for plants to take advantage of nutrients.

Thus, organic fertilizers improve soil structure, help to retain nutrients, allow carbon fixation in the substrate and enhance the ability of the crop to absorb water.

100% organic guarantee and official certification

This natural effectiveness can be found in specialty formula fertilizers tailored to the requirements of each crop in each time of the production cycle. The different lines of SEIPASA fertilizers are a sample of the best options for natural nutrition.

SEIPASA offers 100% organic guaranteed fertilizers, supported by an environmental certificate, which are great for integrated production.

Multisei y Terrasei

Multisei and Terrasei fertilizers

The balanced composition of the Multisei and Seivital products lines (liquid and solid organic) place them as regenerating soil models for their ability to balance the substrate nurturing, improving its structure, composition and microbial activity.

Multisei fertilizers also promote the formation of soil aggregates that improve soil friability, which facilitate farming and prevent waterlogging and root asphyxia. In the same line, they include on their formulations vegetable raw materials with a high degree of refinement that avoid problems such as precipitates and clogged drip irrigation systems.

Seivital solid fertilizers, featuring pellets that get distributed on the soil easily and uniformly, allow immediate availability as they disintegrate in just five minutes in the presence of water and dissolve completely in no more than four hours. This achieves the maximum yield per added fertilizer units.

They ensure a fertilizer of organic origin, free of pathogens, antibiotics and weed seeds, while also free from Salmonella, Enterobacteriaceae, and Streptococci.

When regularly applied, they are the best solution to enrich and restore eroded soils, compacted or depleted, since they achieve the increase of porosity of the substrate as long as they allow greater air circulation, as well as rapid infiltration and greater retention of rainwater or irrigation water.

SEIPASA’s Terrasei line is a response to the nutritional needs of crops in different growth stages, since it combines mineral nutrition with the energy input and the soil structuring contribution of organic fertilization. 

Furthermore, these products include a percentage of aminoacids in their composition, which results in an energy plus for crops, since they allow the plant to use up its metabolic resources for primary physiological functions.