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二甲戊灵长期施用可能导致土壤营养失衡
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二甲戊灵长期施用可能导致土壤营养失衡
为研究新疆棉田土壤施用二甲戊灵对土壤酶活性的影响,石河子大学农学院研究人员在棉田土壤施用二甲戊灵0、2,700、4,050、5,400 g·hm-2,分析了不同处理时间、不同深度土壤酶活性的变化规律。 结果表明,施用二甲戊灵后,土壤碱性磷酸酶活性明显被抑制,处理40天后,5~10 cm土壤层碱性磷酸酶活性被抑制作用最强,二甲戊灵2,700、4,050、5,400 g·hm-2处理的碱性磷酸酶活性抑制率分别为93.79%、90.77%、87.43%;脲酶活性总体表现激活...
Herbicides China News 201705 (Chinese version)
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