摘要
检测了甲霜灵在不同浓度、施入土壤后不同时间对亚硝化细菌和硝化细菌数量的影响及土壤pH值和硝化强度的变化。结果表明甲霜灵对土壤硝化作用有一定的抑制效应 ,在试验条件下 ,每千克土壤含 2 5mg甲霜灵时 ,在用药后 4～ 8周内都表现出对硝化作用的抑制效应。
The number of nitrosobacteria, nitrobacteria, pH and nitrifying capacity of soil were determined in 4-10 weeks after application of Metalaxyl. The result showed that the nitrification of soil was inhibited by Metalaxyl in a certain degree. It was appeared that Metalaxyl had inhibition on nitrifying capacity with 25 mg a.i/kg soil in 4-8 weeks after the bactericide used.
出处
《烟草科技》
EI
CAS
2001年第8期42-44,共3页
Tobacco Science & Technology
