通过在棉花生育期喷施不同种类农药，试验测定棉叶内过氧化氢酶、过氧化物酶活性的变化趋势。
Effects of agrochemicals on activity of catalase, peroxidase in cotton are conducted by a trial with spraying several pesticides over cotton.
检验杂质的含量和分析杂质的种类，有助于改进棉花初步加工的工艺措施，提高皮棉品质。
Inspecting amount of impurity and analyzing kinds of impure cotton help to improve on technologic methods for elementary processing cotton and lint of good quality.
而不同种类农药的使用对棉花吐絮时间的影响较大，其中喷施克螨特、缩节胺和金世纪的棉花吐絮时间晚于其他药剂。
Various pesticides have great impact on boll opening stage, and the boll opening stage are the latest after spraying mepiquat chloride and acetamiprid.
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