某些农药对土壤中特定微生物生理类群的定量影响。
Quantitative effects of some pesticides on certain physiological groups of micro-organisms in soil.
作者信息
Makawi A A, Abdel-Nasser M, Abdel-Moneim A A
出版信息
Zentralbl Bakteriol Naturwiss. 1979;134(3):223-8. doi: 10.1016/s0323-6056(79)80012-9.
Quantitative effects of temik (insecticide and nematocide), orthocide (fungicide), or treflan (herbicide), added to soil at field rate application, on counts of certain desirable soil microorganisms were studied. In the presence of any of the pesticides, counts of aerobic cellulose-decomposers were either stimulated or depressed. Despite the temporarily slight stimulation, observed in some instances of the initial periods, the effect of any pesticide on counts of Azotobacter, N-fixing clostridia, and ammonifiers was subsequently depressive. The period of retardation or stimulation differed according to the chemical composition of the pesticides and physiological properties of micro-organisms. However, the autotrophic nitrifying bacteria, especially ammonium-oxidizers, seemed to be more sensitive and their counts in treated in treated soil were sharply depressed.
研究了按田间施用量向土壤中添加涕灭威（杀虫剂和杀线虫剂）、稻瘟酞（杀菌剂）或氟乐灵（除草剂）对某些有益土壤微生物数量的定量影响。在任何一种农药存在的情况下，好氧纤维素分解菌的数量要么受到刺激，要么受到抑制。尽管在某些初始阶段观察到有暂时的轻微刺激，但任何一种农药对固氮菌、固氮梭菌和氨化菌数量的影响随后都是抑制性的。延迟或刺激的时期因农药的化学成分和微生物的生理特性而异。然而，自养硝化细菌，尤其是铵氧化菌，似乎更敏感，处理过的土壤中它们的数量急剧下降。
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