Tag Archives: Residuos cero

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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SEIPASA in Fruit Attraction 2016

SEIPASA at Fruit Attraction 2016

SEIPASA images at Fruit Attraction 2016

Successful participation and great reception of ‘Zero Residues’ SEIPASA products

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The passage of SEIPASA along Fruit Attraction 2016 has concluded exceeding expectations. With large numbers of visitors throughout the whole fair, which was held from 5 to 7 October at the IFEMA fairgrounds, SEIPASA says goodbye satisfied by the great success of their products and new developments.

The new natural insecticides of SEIPASA Nakar and Pirecris have aroused great interest among professionals in the sector, given its high capacity to control pests – demonstrated with diverse independent tests – with the added value, with regard to the conventional products, of obtaining ‘Zero Residues‘ crops.

 

This was evidenced by the success of call in the technical talk devoted to explaining the properties, field efficiencies and integration strategies IPM (Integrated Pest Management) of new insecticides solutions Nakar and Pirecris by SEIPASA technical director, Javier Nácher.

During the event many attendees were interested in the SEIPASA latest developments.

The future of the agricultural sector was also present at the SEIPASA’s stand represented by a group of students from the Polytechnic University of Madrid. The director of R&D+i department, Francisco Espinosa, responded to their concerns and showed them the great potential that natural treatments  can reach, most of them of botanical origin, after a thorough research and development to achieve the ideal formulation.

SEIPASA’s stand was also the scene of a meeting of all partners making up the consortium responsible for carrying out the ambitious European project Life+ Zero Residues (LIFE12 ENV/ES/000902: LIFE Zero Residues: towards a sustainable production and supply chain for stone fruit). The conclusions of this initiative, aimed at improving the quality and sustainability of production, conservation and marketing of stone fruit with the guarantee to be free of residues, speak of success.

For more information about SEIPASA products (biopesticides, biostimulants, fertilizers…), contact us: consulta@seipasa.com

Ubicación Seipasa en Fruit Attraction 2016

SEIPASA in Fruit Attraction: New natural pesticides

The latest and Innovative Residue Zero solutions for present and future needs in a crop protection market increasingly limited will be displayed in Fruit Attraction 2016, Pavilion 4 stand 4G07

Technical director will reveal the extraordinary potential of ‘New natural insecticides’ in the Innova Forum 7, Thursday 6 at 11:30 a.m.

Book an appointment to be advised personally in the stand of SEIPASA to know nearly the advances in control biostimulation and fertilization http://www.seipasa.com/fruit-attraction/

SEIPASA has been nominated for ‘Estrellas de Internet’ Prizes, organized by Fruit Today, in the category of Best Blog

Seipasa en Fruit Attraction 2015

Seipasa en Fruit Attraction 2015

New and specialized natural broad-spectrum insecticides (Nakar and Pirecris), the best chance to hold off Lepidoptera (Bt32 Seipasa) and the ideal tool to including in control programs of fungal diseases (Septum) are some of the latest technologically advanced natural pesticides emerged from Seipasa Technology that will be present at Fruit Attraction 2016 (Pavilion 4 stand 4G07).

In a context in which it becomes increasingly difficult to find solutions to tackle pests and diseases due to the strict regulation in plant health and active substances, SEIPASA responds to the current needs of the crop protection market and anticipates the future, always with the guarantee of obtaining free residues crops.

Phytosanitary developments

It is in this spirit that SEIPASA will also disclose in this important industry event its latest phytosanitary developments ‘Zero Residues‘.

These include those aimed at controlling thrips in horticultural, Taphrina deformans in fruit trees or powdery mildew and downy mildew, among other foliar fungi.

SEIPASA not only provides specialized solutions for major cultures but also for minor cultures which, with the new situation, are more affected if possible by the lack of treatments. Aphids, whiteflies, mites, woodlice, mildews, dappled… For each problem, a solution.

‘New natural insecticides’

Technical director of the company, Javier Nácher, will reveal in Innova Forum the extraordinary potential of the New natural insecticides of SEIPASA, their properties, field efficiencies and fusion strategies Integrated Pest Management. They are pesticides, totally natural, that will mark a before and after in the fight against certain pests and diseases.

The talk will take place on Thursday, 6 at 11:30 am at the core connecting 7-9 (Innova Forum 7).

In addition, SEIPASA’s Blog (http://blog.seipasa.com/en/) has been selected as one of the finalists in the ‘Estrellas de Internet’ Prizes, organized by Fruit Today. Winner will be announced on the 6th, at 17.30 hours, in Proexport stand (4A01c).

Biostimulants

The latest generation of SEIPASA’s biostimulants cannot be absent to this important appointment. They represent a key tool to maximize returns on production costs. Without having a direct effect on pathogens, they allow invigorating and induce resistance in plants. In this way, they can prevent the attack from many pests and diseases.

Kynetic4, one of the most complete biostimulants; Seisil, potassium and soluble silicon source; Seiland, an excellent product to stimulate the development of roots and absorption of nutrients; and Sweetsei, the best solution to contribute to the increase of sugars, maturation and fattening of the fruit, are some of the major biostimulants of Seipasa.

Personal advice. Book an appointment

To know these last generation innovations and solutions, you can visit the stand of SEIPASA in Fruit Attraction 2016 (Pavilion 4 stand 4G07). You can even book an appointment in advance to receive a personal advice:  http://www.seipasa.com/fruit-attraction/. We will be waiting for you.

Seipasa location in Fruit Attraction 2016

Seipasa location in Fruit Attraction 2016

Seipasa location in Fruit Attraction 2016

Curva degradación residuos cero

How to achieve zero residues crops in conventional agriculture

Towards Zero Residues in traditional agriculture

Any conventional agricultural production -thus not restricted to organic agriculture- can get fruit, vegetables and grains free of chemical residues, Zero Residues. How? We will explain.

To be clear about this process, we should talk about the so-called degradation curves or waste disposal curves. Which are the graphical representation of the evolution over time of residues present in plants treated with pesticides.

The application of pesticides generates a deposit (amount of the substance that remains in the plant immediately after treatment), which depends on the product used, its formulation, the presence of adjuvants, of the application, the vegetable’s morphology, of the weight-surface ratio of and of weather conditions at the time of application.

Since the initial deposit, occurs a progressive degradation of the pesticide by mechanical, physical and chemical agents, derived from climatic factors (temperature, wind, rain, humidity, sunshine) and the nature of the plant and the pesticide.

This process may be foreseen according to models that set the rate of heat loss, setting curves that let us learn theoretical concentrations for a particular application time.

teoretica curveThat is why curves of authorized pesticides for each crop allow us to know how the residues content changes over time in the fruit and, thus, determines the “safety periods” (minimum period of time that must elapse between treatment and harvesting the product, or the entry of cattle in the treated plot).

Maximum Residue Limits (MRLs)

The danger of a residue is determined by the toxicity of its active material, the characteristics of the formulation, the potential metabolites generated by the degradation process itself, its bioaccumulation, the amount of residues in the collection or consumption, and the degree of exposition.

In order to protect public health against the toxicity of chemical residues in agricultural products, they are regulated by the Maximum Residue Limits (MRLs) rules.

This is the maximum amount of chemical residues that plant products may contain when they reach the market; that is, the allowed concentration acceptable for long term human or  animal consumption.

In conventional agriculture, following the best practices implies crops that do not exceed those Maximum Residue Limits if the legally established criteria (dose, timing, adjustment of product-cultivation…) is respected.

Residues degradation to zero

Degradation curve phytosanitariesThe curve process is as follows: There is a brief latency period, after which a progressive decrease in the residues concentration (dissipation area) is reported. This comes to a point where degradation occurs more slowly (persistence zone) until reaching the harvest period, in which the parameters of the Maximum Residue Limits (MRLs) must be met.

Also, it must be kept in mind that in many cases several applications of a pesticide are necessary at different times of the production cycle, which causes the degradation curve to move to the right. This way, the closer the harvesting time, the more residues will reach the final production.

But, in addition to this method, the practice leads to focus on another highly effective and even more natural formulation: planning each crop following the Integrated Pest Management (IPM) strategy with the added goal of a ‘zero residues’ crop.

Thus, it is established as the main performance in pest control prioritization mechanisms of natural regulation as the use of biological control and the use of plant protection products compatible with biological control organisms (OCB) are like SEIPASA biopesticides, of so that free crop residues is guaranteed from the beginning.

Degradation curve, Zero Residues

SEIPASA biopesticides degradation curve, highly specialized in removing different pests, has dissipative and persistence periods with more convergence towards zero, which guarantees a residues-free harvest.

This ensures fruits, vegetables and cereals without toxic remains reach the population tables, not even legally permitted levels.

Value-added harvest

All of this adds value to the agricultural product, both in quality (nutritional, sensory and visual) and nutritional health, which more and more consumers ask for, along with large retail chains. Moreover, major retail outlets are no longer satisfied only with respect to Maximum Residue Limits, they ask for much lower levels.

The great effectiveness of SEIPASA biopesticides can keep pests at bay while protecting the crop in a more natural, sustainable and healthy way, but also avoids the harmful effects caused by chemical pesticides such as some plants’ sensitivity to pests or diseases or some pests’ resistance to pesticides, which make them not only useless but also contaminants.

It must be kept in mind, as discussed before, that synthetic products can be replaced entirely by SEIPASA’s natural treatments from the cycle start, achieving the same effectiveness. SEIPASA biopesticides are a major element in Integrated Pest Management (IPM).

For more information on the most appropriate biopesticide for each crop and production cycle, and o application times in order to achieve a ‘zero residues’ harvest:  consulta@seipasa.com