Prevention and Control Effect of Functional Microbial Fertilizers and Formulated Fertilizers on Peanut Pod Rot Disease in Eastern Hebei Province
Composite microbial strains(Paenibacillus mucilaginosus GF32a-1 and Bacillus subtilis CSG)with functions of biocontrol,growth-promoting,and degradation of autotoxins were screened by antagonistic experi-ments and pot experiments to effectively prevent and control the occurrence of peanut pod rot.Organic materi-als such as biogas residue and corn cob were prepared as carriers with high-temperature aerobic fermentation technology,on which composite microbial strains were sprayed with microbial spraying technology to prepare granular microbial fertilizer Y5 m(N)∶m(P2O5)∶m(K2O)∶m(CaO)∶m(S)=1∶5.5∶1.5∶1.5∶1.Based on the nutrient requirements characteristics of peanuts and the physical & chemical characteristics of the soil in the main peanut producing areas of Eastern Hebei province,formula fertilizer m(N)∶m(P2O5)∶m(K2O)∶m(CaO)=14∶2.5∶12.5∶9 was prepared,and thus HGJ,a special fertilizer for peanut pod rot disease preven-tion and control that consists of functional microbial fertilizer and formulated fertilizer,was developed.The ex-perimental results showed that the emergence rate and root dry weight of the peanut pod rot prevention and control special fertilizer treatment group were significantly higher than those of the composite fertilizer treatment group and the organic fertilizer conventional control group(p＜0.05),and the seedlings grew well during the emergence time.1 800 kg/hm2 special fertilizer HGJ for peanut prevention and control of pod rot disease showed a control efficiency of 72.58％for peanut pod rot and a yield increase rate of 16.84％in field experi-ments in Eastern Hebei province,while 1 200 kg/hm2 HGJ showed a control efficiency of 61.67％and a yield increase rate of 10.39％.Special fertilizer HGJ for peanut pod rot disease prevention and control could reduce the incidence of peanut pod rot and increase the yield.
Peanut pod rotmicrobial fertilizerbiological controlprevention and control effecteastern He-bei province
万方数据
维普
