微生物杀菌剂对番茄重茬病的防治效果及其对番茄产量的影响

近年来,棚室番茄因连续种植而导致的重茬病发生严重,常导致植物生长缓慢,产量下降,品质变劣。连作还会导致土壤环境受到破坏。为了解决番茄重茬问题,以番茄品种金鹏为试材,研究了微生物杀菌剂＂10亿芽孢/克枯草芽孢杆菌可湿性粉剂＂不同施用量（0.5 g穴/、1.0 g穴/和1.5 g穴/）对番茄重茬病的防治效果及其对番茄产量的影响。结果表明：施用微生物杀菌剂0.5～1.5 g穴/能够有效控制番茄重茬病的发生,防效为59.1%～98.9%,且能够显著增强番茄的生长势,提高番茄果实产量和品质。其中施药量为1.5 g穴/时防效最好（98.9%）,番茄产量最高为227 472.3 kg/hm2,较CK增产97.2%。在番茄生产中施用微生物杀菌剂是防治重茬病的有效手段,具有较好的应用前景。

Effects of Microbial Fungicide on Controlling Continuous Cropping Disease and Yield of Tomato

Recently the continuous cropping disease of tanato was serious,which caused the slow growth,yield reduction,quality deterioration,and destroyed soil environment.The effects of microbial fungicide 1.0×109 spores/gram Bacillus subtilis WP on controlling the continuous cropping disease and yield of tomato were studied.The results showed that the application of 0.5 g,1.0 g and 1.5 g microbial fungicide in one point could effectively control the disease,and the control effect was 59.1%,81.0% and 98.9%,respectively.And it could significantly improve the growth vigor,and increase the yield and quality of tomato.The yield was the highest（227 472.3 kg/hm2） with the 1.5 g microbial fungicide,which increased by 97.2%.