Study on the Integrated Effects of Cultivation Factors on Sharp Eyespot of Wheat and High-Yield and Disease-Control Cultivation Techniques
The effects of the five cultivation factors on sharp eyespot of wheat were studied by applying relational regression design.The results showed that the importance order of the effect of each factor on the disease index is nitrogen levelseeding timebasic seedingN fertilizing time ratio of ground and additional fertilizer.Among the factors,there are operative interactive effect. The interactive effect between density and N fertilizer was significant at the level of 0.05. Early sowing, high-density and large amount of N application were the three main causes of the disease. An optimized scheme of cultivation measure for the control of the disease was proposed according to the balancing optimization of high-yield and disease control.