微生物菌剂拌种对花生土传病害的防治效果及产量影响

Effect of Microbial Agents Dress Seeds on Peanut Soil-borne Diseases and Yield

为探索微生物菌剂拌种防治花生根部病害的防治效果及对产量的影响,以鲁花8号为试验材料,选择3个微生物菌制剂和1个化学药剂,设置1000亿CFU/mL解淀粉芽胞杆菌、200亿CFU/mL多粘类芽胞杆菌、1亿CFU/g真菌生防菌(TB)、1000亿CFU/mL解淀粉芽胞杆菌+1亿CFU/g真菌生防菌(TB)、200亿CFU/mL多粘类芽胞杆菌+1亿CFU/g真菌生防菌(TB)和25%咯菌腈拌种处理进行田间药效试验。结果表明:6种供试药剂拌种处理均对花生有一定的增产作用,且对根腐病和白绢病均有一定的控制效果,其中1000亿CFU/mL解淀粉芽胞杆菌+1亿CFU/g真菌生防菌(TB)种子处理的出苗率、增产率和综合防效最高,其出苗率和增产率分别为94.35%和23.15%;出苗30 d后根腐病防效为76.95%,出苗60 d后根腐病和白绢病防效分别为83.54%和83.88%,在绿色防控技术推广应用中具有良好的应用前景。

In order to explore the effects of microbial agents on peanut root diseases and yield,we selected 100 billion CFU/mL Bacillus amyloliquefaciens,20 billion CFU/mL Paenibacillus polymyxa,100 million CFU/g fungal biocontrol strains(TB)and 25%fludioxoni,by seed dressing to carry out the field efficacy test.Six treatments were set:100 billion CFU/mL B.amyloliquefaciens,20 billion CFU/mL P.polymyxa,100 million CFU/g fungal biocontrol strains,100 billion CFU/mL B.amyloliquefaciens+100 million CFU/g fungal biocontrol strains,20 billion CFU/mL P.polymyxa+100 million CFU/g fungal biocontrol strains,and 25%fludioxoni.The experimental varieties was No.8 Luhua.All of the tested agents had certain effects on peanut yield increase,and peanut root rot and Sclerotium blight.The seedling emergence rate,yield increase rate were the highest by 100 billion CFU/mL B.amyloliquefaciens+100 million CFU/g fungal biocontrol strains(TB),which were 94.35%and 23.15%,respectively.Thirty days after seedling emergence,the control efficiency on peanut root rot was 76.95%.And after 60 days,the control efficiency on peanut root rot and Sclerotium rolfsii reached 83.54%and 83.88%.That has high application prospect on agricultural green prevention and control technology extension.