某些农药对有助于土壤肥力的特定微生物的影响。
Effect of some pesticides on certain micro-organisms, contributing to soil fertility.
作者信息
Makawi A A, Abdel-Nasser M, Abdel-Moneim A A
出版信息
Zentralbl Bakteriol Naturwiss. 1979;134(1):5-12. doi: 10.1016/s0323-6056(79)80057-9.
A pot experiment was run for studying the effect of Temik (insecticide and nematocide), Orthocide (fungicide), and Treflan (herbicide) on certain desirable soil micro-organisms. Total counts of bacteria, actinomycetes or fungi were mostly lower in the treated than in the untreated soil. Aerobic cellulose-decomposers were either stimulated or depressed. Despite the temporarily slight stimulation, observed in some instances at the initial periods, the effect of the pesticides on counts of Azotobacter, N-fixing clostridia, and ammonifiers was afterwards depressed. The period of retardation or stimulation differed according to type of pesticide and type of micro-organisms under study. However, the autotrophic nitrifying bacteria, especially ammonium-oxidizers, seemed to be more sensitive and their counts in treated soil were sharply depressed.
进行了一项盆栽试验，以研究涕灭威（杀虫剂和杀线虫剂）、放线菌酮（杀菌剂）和氟乐灵（除草剂）对某些有益土壤微生物的影响。处理过的土壤中细菌、放线菌或真菌的总数大多低于未处理的土壤。好氧纤维素分解菌要么受到刺激，要么受到抑制。尽管在某些情况下在初始阶段观察到暂时的轻微刺激，但农药对固氮菌、固氮梭菌和氨化菌数量的影响随后受到抑制。延迟或刺激的时间根据农药类型和所研究的微生物类型而有所不同。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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