分析关中灌区多县的小麦赤霉病及其环境调查资料,结果表明玉米残杆带菌率与产壳率、地下水位与产壳率、产壳率与产壳指数、产壳指数与发病率、亩玉米残杆数与亩菌量、亩玉米残杆数与发病率以及地下水位与发病率均有显著的相关关系。不同地区的病情差异由地下水位和亩玉米残杆数 Analysis of wheat scab in many counties in Guanzhong Irrigation Area and its environmental survey data showed that the rate of occurrence of barreling of corn residue was related to the rate of formation of shell, rate of groundwater and shell formation, shell formation rate and shell index, shell index and incidence, Mu and the amount of mu residual corn acres per mu, the number of bars and acres of maize incidence and incidence of groundwater level and incidence were significantly correlated. Differences in disease in different regions by the groundwater level and the number of acres of corn residues