Effects of Two Biological Seed Coating Agents on Growth and Yield of Soybean
Seed coating can prevent soybean root diseases and insect pests,promote seedling growth and increase soybean yield.The application of biological seed coating agent is in line with the national policy of reducing pesticide application and increasing efficiency.Biological seed coating agent instead of chemical seed coating agent is the future development direction.Bacillus amyloliquefaciens HJ-1 and actinomycete M1-4 screened were compounded with film former to make biological seed coating agent.Soybean seeds of Suinong 28 were treated with biological seed coating agent,using film former as control,and compared with chemical seed coating agent.Randomized block design was used to study the effects of microbial seed coating agent on soybean plant height,chlorophyll and other major growth traits and yield traits.The results showed that chemical seed coating agent and HJ-1 seed coating agent significantly increased the emergence rate of soybean,and there was no significant difference between treatments.M1-4 significantly increased the root-shoot ratio of soybean seedlings;HJ-1 significantly increased the plant height of soybean at flowering and seed filling stage,and M1-4 significantly increased the plant height of soybean at seed filling stage.Chemical seed coating agent significantly increased leaf area index of flowering soybean,HJ-1 seed coating agent significantly increased leaf area index of podding soybean.Field experiments showed that HJ-1 and M1-4 could significantly increase the number of pods per plant,but had no significant effect on other yield traits.Chemical seed coating agent and HJ-1 and M1-4 biological seed coating agent could increase soybean yield,and the yield increased by 47.39%,34.16%and 40.60%,respectively.In the second year,the yield of soybean treated with chemical seed coating agent,HJ-1 and M1-4 was 26.92%,13.86%and 32.81%higher than that treated with film forming agent.The effect of biological seed coating agent on yield compared with chemical seed coating agent was not significant.In soybean production,biological seed coating agent is more in line with the national policy of reducing pesticide application and increasing efficiency.
Bacillus amyloliquefaciensactinomycetessoybeangrowth and yield
万方数据
维普
