Sulfonylureas effect on soil chemical properties and yield crop in semi-arid region of Algeria
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 7, Issue 5
Abstract
Pollution by pesticides and organic pollutants is mostly perceived through their presence in water and food. However, many pollutants pass through the soil where their conduct will determine the manifestation of their pollutant character. Reducing their environmental impact requires an understanding of the processes they undergo in the soil. Thus, the physico-chemical composition of the soil, temperature and the richness of the microflora are so many and various factors that contribute to the degradation of herbicide residues. The aim of this study was to investigate the interaction of Sulfonylureas herbicides with soil chemical properties in semi-arid zone of Algeria. The treatments were carried out for a stage 3-4 leaves; at company recommended rates of 150 ml/ha for Sekatorwhile recommended rate of 120g/ha was used for Zoom treatment.Variance analysis shows no significant effect of Na content of a soil polluted with both herbicides compared to the control. Sekator herbicide treated soils showed significant decrease in conductivity, level of the organic matter, content of available phosphorus and potassium, whereas soil treated with Zoom shows a very highly significant increase in the content of available phosphorus (p ≤ 0.001) and very highly significant decrease in the potassium content. This study has elucidated the ability of herbicides to chelate with soil chemical properties thereby reducing their availability for uptake by plants. It has also been shown that soil minerals are utilized by plants and microbes during microbial degradation.
Authors and Affiliations
Souahi Hana, Meksem Amara Leila, Meksem Nabila, MaalemSouhail, Djebar Mohamed Reda
Keywords
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