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首页> 外文会议>2011 International Symposium on Water Resource and Environmental Protection >Effects of no-tillage practice on Atrazine loss on sloping cropland
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Effects of no-tillage practice on Atrazine loss on sloping cropland

机译：免耕措施对坡耕地At去津损失的影响

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Atrazine is an herbicide which is widely used in the cornfield to remove annual gramineous weeds and broad-leaved weeds. However, Atrazine and its degradation products have high toxicity to animals and human beings. The lost of Atrazine from farmland with runoff and sediment will cause serious environmental problems. This study was conducted by simulated rainfall experiment to evaluate the effects of no-tillage practice on Atrazine loss on sloping cropland. The results showed that no-tillage practice could significantly reduce runoff and Atrazine loss. As compared to conventional tillage, the runoff and Atrazine loss with no-tillage were decreased by 59.4% and 55.9%, respectively. Meanwhile, the results also showed that there was a negative correlation between slope gradient and the effects of no-tillage practice in preventing runoff and Atrazine loss. The effectiveness of no-tillage practice gradually decreased with the increasing slope gradient.
机译：阿特拉津是一种除草剂，在玉米田中广泛用于清除一年生禾本科杂草和阔叶杂草。但是，At去津及其降解产物对动物和人类具有高毒性。农田中的r去津因径流和沉积物而流失，将导致严重的环境问题。本研究是通过模拟降雨实验进行的，以评估免耕做法对坡耕地azine去津损失的影响。结果表明，免耕做法可以显着减少径流和At去津损失。与传统耕作相比，免耕造成的径流损失和At去津损失分别减少了59.4％和55.9％。同时，结果还表明，坡度与免耕措施对防止径流和At去津损失的影响呈负相关。免耕做法的有效性随着坡度的增加而逐渐降低。

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