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在纯药量25ppm粉锈宁药液中,分别加1％尿素和0.2％磷酸二氢钾,对小麦白粉病防病保产效果显著。保产效果远远超过50ppm粉锈宁。单用1％尿素、0.2％磷酸二氢钾和50ppm粉锈宁喷病叶后进行孢子萌发试验表明,孢子萌发率比对照(清水)分别降低83.22％、82.21％、97.14％,说明尿素和磷酸二氢钾对该菌孢子萌发有强烈抑制作用。但在苯骈咪唑叶片保绿药效试验中,喷药后24小时接种的防效分别为69.35％、
In the pure amount of 25ppm pink rust Ning liquid, respectively, plus 1% urea and 0.2% potassium dihydrogen phosphate, wheat powdery mildew disease prevention and protection of significant effect. Insufficient production efficiency far exceeds 50ppm powder rust Ning. The spore germination test showed that the spore germination rate was 83.22%, 82.21% and 97.14% lower than that of the control (fresh water) alone with 1% urea, 0.2% potassium dihydrogen phosphate and 50ppm trimethoprilate respectively, indicating that urea and dihydrogen phosphate Potassium spore germination of the bacteria have a strong inhibitory effect. However, in benzolimidazole green leaf efficacy test, the control effect of inoculation 24 hours after spraying was 69.35%