光合细菌菌剂与噻唑膦协同使用对水稻根结线虫病防治研究

水稻根结线虫病近年来对我国的水稻生产造成了严重危害.探索低成本、高效安全的水稻根结线虫病防治方法对减少其危害具有极其重要的意义.本研究通过田间小区试验评价了光合细菌微生物菌剂与噻唑膦协同使用对水稻根结线虫病的防治效果及对水稻生产的影响.结果 显示,利用光合细菌微生物菌剂1 L/667m2与10％噻唑膦GR0.10 kg...

Synergistic effect of photosynthetic bacteria microbial agent and fosthiazate to rice root knot nematode disease

Rice root knot nematode disease is one of the serious diseases in rice production in recent years. It is very important to explore a low cost, effective and safe method for the disease control. In this study, synergistic effects of photosynthetic bacteria microbial agent and fosthiazate to control rice root knot nematode disease were evaluated by field trials. The results showed that photosynthetic bacteria at 1 L/667m2 combined with fosthiazate 10% GR at 0.10 kg/667m2 could not only significantly reduce the population density of the second stage juveniles of Meloidogyne graminicola in paddy field, but also reduce the incidence and root knot index. The control efficacies of rice root knot nematode 35 d and 70 d were 76.94% and 89.99%, respectively, and there was no significant difference in the rate of infected plants, the control efficacy of 70 days and the decline rate of M.graminicola population compared with the treatment of 10% fosthiazate GR at 0.15 kg/667m2. Meanwhile, the use of photosynthetic bacteria microbial agents combined with fosthiazate can reduce the inhibitory effect of fosthiazate on rice growth and increase the rice yields. The yield increase rate reached 19.48%, significantly higher than that of fosthiazate 10% GR at 0.15 kg/667m2. The results indicated that using combination of photosynthetic bacteria microbial agents and fosthiazate can reduce the use of chemical nematicides and decrease environmental pollution, and reduce the resistance of nematodes. In addition, the combined use of microbial nematicides can solve the problems of poor quick acting and low control effect of microbial nematicides, which can be regarded as an efficient and green method.