Two terbuthylazine managements for soil and water protection

5 páginas.-- 2 figuras.-- 2 tablas.-- 7 referencias.-- Comunicación oral presentada en el 1st World Conference on Soil and Water Conservation under Global Change "Sustainable Life on Earth through Soil and Water Conservation" , 12-16 junio (2017) Lleida

The negative environmental impact of pesticides remains a topic of interest, especially when rivers, reservoirs and ground waters are affected and it largely influences human health. One of the areas most affected by this type of contamination is that surrounded by olive orchards in Mediterranean areas as Southern Spain, which has recently been linked to surface and ground water pesticide pollution episodes (Hermosín et al, 2013¸ Masiá et al., 2013). The research works have directed all their efforts to minimize this contamination risk by using different strategies (Reichenberger et al., 2007). In this sense, two main strategies have been selected to verify its effectiveness: a culture practice as cover crops (CC); and the application of herbicide as slow release formulation (SRF). In relation to the first one, few works have studied the effect of cover crops, as culture management, for reducing the leaching of pesticides, especially in the case of olive orchards. Regarding the use of SRFs, which the active ingredient of pesticide is supported in an adsorbent or carrier, has been widely studied (Carrizosa et al., 2000; Cabrera et al., 2015), mainly in order to obtain modified standard clays in laboratory. However, scarce works are based on natural, local and low values clays, and commercial organoclays, as carriers for SRFs. Thus, our objective was to compare the behaviour of the herbicide terbuthylazine in soil leaching processes at lab scale, under two types of soil and herbicide managements, and asses the possible advantage of each strategies to minimize herbicide water contamination

This research was supported by PO11-AGR-7400 and RECUPERA 2020 projects

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