Effects of biopharmaceutical mixture on the control and growth of cotton Verticillium wilt
[Objective]In order to explore the effects of biological pesticide combinations on cotton Verti-cillium wilt control and growth,and provide theoretical basis for the healthy growth of cotton plants.[Meth-ods]A field experiment was conducted in 2022,with Xinluzhong 42 as the experimental variety and drip ap-plication as the main method applying 80％ethyl allicin emulsifiable concentrate of 1.5 kg/hm2 and potassium phosphite of 15 L/hm2 based on a glutathione content of 0.3 kg/hm2,they were compounded with antiviral a-gents(T1,0.15 L/hm2),composite microbial fertilizer(T2,30 L/hm2),15％oxamycin(T3,2.25 kg/hm2),5％octambumide acetate(T4,1.5 kg/hm2),and 25％pyrazolin(T5,2.25 L/hm2),respectively;The effects of different pesticides on cotton disease control,agronomic traits,and yield were analyzed.[Re-sults]The results showed that each treatment had significant control effects on cotton diseases,promoted cot-ton growth to a certain extent,and increased cotton plant height,number of fruit branches,and number of buds and bolls.The control effect of T2 treatment on cotton diseases was 19.99％and 23.34％higher than that of T1 and T3 treatment,and the number of bolls in T1 and T2 treatment increased by 1.8 and 2.67 com-pared to CK treatment.The seed cotton yield of T2 treatment was 6,104.86 kg/hm2,which had the highest yield and reached significance than other treatments.[Conclusion]Under the experimental conditions,drip application of compound microbial fertilizer+80％acetoallin EC+potassium phosphite+glutathione(T2)can improve the disease control effect to a certain extent,increase the number of buds and bolls per plant,and sig-nificantly increase yield.
cottonbiopharmaceuticalcompoundingVerticillium wiltcontrol effectgrowth and devel-opment
万方数据
维普
