论文部分内容阅读
化学农药的广泛使用,给农业生产带来巨大的效益。但由于农药的杀生性,除了达到杀伤目标之外,还可能同时伤害有益生物的活动,并可能造成对环境的污染。因此,对使用农药后将会产生怎样的后果而受到极大关注。农药对豆科共生固氟作用的影响,无疑也是农业实践中颇为重要的问题。根瘤菌和豆科宿主通过二者共生组织——根瘤组成的共生固氮体系,化学农药影响其中任一方都将影响到这一有效共生固氮体系的建立和发展。(1976)指出,根瘤菌易受到一系列除草剂的抑制。Brakel J(1953)在研究系列杀菌剂中,发现福美双对根瘤菌纯培养物显示最强的抑制作用。Hamidi.Y.A等(1974)。也观察到福美双对大豆共生固氮作用的毒害,而0.3％的克菌丹却表现了刺激效益。我们曾明确了氟东灵
The widespread use of chemical pesticides has brought tremendous benefits to agricultural production. However, due to the killing of pesticides, in addition to achieving the killing target, it may also harm beneficial biological activities and may cause environmental pollution. Therefore, great attention has been paid to what kind of consequences will occur after using pesticides. The impact of pesticides on the symbiotic solidification of legumes is undoubtedly an important issue in agricultural practice. Rhizobium and leguminous host through the symbiotic organization of the two organizations - the symbiotic nitrogen fixation system, the impact of chemical pesticides either will affect the establishment and development of this symbiotic nitrogen fixation system. (1976) pointed out that rhizobia are susceptible to a series of herbicides. Brakel J (1953) found that Tetramethrin showed the strongest inhibitory effect on pure cultures of Rhizobia in a series of fungicides studied. Hamidi. Y. A et al. (1974). The toxicity of symbiotic nitrogen fixation to the soybeans was also observed with thiram, whereas 0.3% of the captan showed a stimulatory benefit. We have clarified Fudongling