关键词: 新型肥料, 新型肥料, 土壤肥力, 烤烟生长

Abstract: To screen seed coatings with good control effect on root rot disease for providing support for production and planting of red kidney bean, we compared the emergence rate, plant height, root length, fresh weight and dry weight and so on by indoor pot experiments, screened the seed coatings for the growth and development of red kidney bean. After the field experiment, we compared the disease index, control effect and yield increase in different periods, and selected the ideal seed coatings. The pot experiment showed that: the seed coatings of 35% carbendazim·thiram·carbofuran FSC, 11% metalaxyl-M·fludioxonil·azoxystrobin FSC, 62.5 g/L metalaxyl-M·fludioxonil FSC and 12% thiophanate-methyl·metalaxyl·azoxystrobin FSC were safe to the growth of red kidney bean; the field experiments showed that: after seedling emergency of 10 days, 11% metalaxyl-M·fludioxonil·azoxystrobin FSC had the best control effect with 89.28%, the control effect of 12% thiophanate- methyl · metalaxyl · azoxystrobin FSC, 62.5 g/L metalaxyl- M · fludioxonil FSC, and 35% carbendazim·thiram·carbofuran FSC was 72.56%, 67.79% and 59.51%, respectively; 35% carbendazim thiram·carbofuran FSC increased the yield most significantly by 28.35% higher than control treatment, 11% metalaxyl- M · fludioxonil · azoxystrobin FSC increased the yield by 19.64% , but their difference was not significant. In conclusion, 11% metalaxyl- M · fludioxonil · azoxystrobin FSC can control root rot disease significantly with good application value, and can be used interchangeably with 35% carbendazim·thiram· carbofuran FSC commonly used in the market.