作 者：
吕军;王东伟;王剑;唐蓓;张德咏;刘勇;成飞雪
单 位：
湖南省岳阳市平江县植保植检站;湖南省农业科学院植物保护研究所;湖南省农业科学院农业经济与农业区划研究所
关键词：
水稻根结线虫病;光合细菌微生物菌剂;噻唑膦;协同作用;防治效果
摘 要：
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/667m~2与10%噻唑膦GR 0.10 kg/667m~2协同作用能显著降低稻田拟禾本科根结线虫2龄幼虫种群密度,减少发病株率与根结指数,35 d和70 d对水稻根结线虫病的防治效果分别达到76.94%和89.99%,与10%噻唑膦GR 0.15 kg/667m~2单剂处理在发病株率以及70 d防治效果、虫口减退率等不存在显著差异。利用光合细菌微生物菌剂与噻唑膦协同使用后,可减少噻唑膦药剂对水稻生长产生的抑制作用,增加作物产量,其增产率达到19.48%,显著高于10%噻唑膦GR 0.15 kg/667m~2单剂的使用效果。试验表明通过光合细菌微生物菌剂与噻唑膦协同应用,能减少化学杀线剂的使用,降低线虫抗药性的产生和环境污染的风险。此外,通过联合使用还能解决微生物杀线剂速效性差、防效较低等缺点,不失为一种高效绿色的水稻根结线虫病防治方法。
译 名：
Synergistic effect of photosynthetic bacteria microbial agent and fosthiazate to rice root-knot nematode disease
作 者：
Lü Jun;WANG Dongwei;WANG Jian;TANG Bei;ZHANG Deyong;LIU Yong;CHENG Feixue;Pingjiang Plant Protection and Quarantine Station,Yueyang City, Hunan Province;Institute of Plant Protection, Hunan Academy of Agricultural Science;Agricultural Economy and Regional Planning Research Institute,Hunan Academy of Agricultural Science;
关键词：
rice root-knot nematode disease;;photosynthetic bacteria microbial agent;;fosthiazate;;synergism;;control effect
摘 要：
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/667 m~2 combined with fosthiazate 10% GR at 0.10 kg/667 m~2 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/667 m~2. 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/667 m~2. 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.
