Effects of YCB-III on Agronomic Traits and Virus Disease Control of Flue-cured Tobacco
In this study,soil conditioner(YCB-III)was applied in combination with pesticides to reduce the total amount of pesticides while not reducing or improving the control effect of flue-cured tobacco virus disease,improving the agronomic properties of flue-cured tobacco,and improving the yield and quality of flue-cured tobacco.According to the effects of different treatments on the long-term agronomic traits of flue-cured tobacco,the plant height,stem girth,effective leaf number,fresh leaf weight and slice opening of T4 and T5 reached significant levels,and the YCB-III application amount increased by25%,50%,75%and100%compared with T1,T2,T3,T4 and T5,respectively.The pesti-cide application amount was reduced by0.00%,25%,50%and 50%respectively,but the control effect was greater than 74%,at the same lev-el.The study showed that the application dosage of YCB-III was 525 kg/hm2,the effective component of 4%Cytosinpeptidemycin SL(KV1)was 120 g/hm2,and the effective component of 0.5%Lentinan SL(KV2)was 12.5 g/hm2.
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