Analysis on Cost and Economic Benefit of One-off Fertilization for Flue-cured Tobacco

In order to simplify the process of fertilization and realize cost-saving and economic benefit-increasing of tobacco production,the field plot experiment was conducted to study the application effect of one-off fertilization for flue-cured tobacco in Huidong county of Sichuan province.The results showed that the growth and development of tobacco plants in one-off fertilization treatment was the same as those in normal fertilization treatment.In comparison with the normal fertilization,one-off fertilization could preserve high activity of root system,increase output value RMB 673.2 yuan per hectare in average,and save cost RMB 2250 yuan per hectare.The chemical composition in tobacco leaves in one-off fertilization treatment was in the appropriate scope.Therefore,one-off fertilization had wide extension and application value.