Screening Experiment on Seed-dressing of Potatoin Aboveground Ridge Cultivation Model

Using Kexin 13 as experimental material,the effect of different ways of seed dressing on potato growth and yield was studied to screen the best seed dressing formula.The result showed that the best treatment was 100 mL bio-stimulant Kelpak+100 g captan+50 mL hymexazol+400 mL thiophanate-methyl suspension concentrate+20 g agricultural streptomycin,rice emergence rate was 94.67%,the effect of controlling seedling blight and early blight was up to 100.00% and 88.89%,respectively,the rice yield was 45 505 kg·hm-2,increased 9.37% than CK,the treatment was recommended to spread using in the large region.