【摘要】 １９９１～１９９３年，钾肥对玉米青枯病及其产量影响试验结果表明．钾肥对玉米青枯病有防治作用。在增施钾肥的同时，氮、磷、钾合理配合使用是防治玉米青枯病的有效途径，因玉米品种的不同防效达７．５２～６５．１５％。钾肥能改善玉米的农艺性状，具有增产作用，增产效果达３．９９～１３．９２％，最适的氯化钾施用量为１５公斤／亩。更多还原

【Abstract】 The influence of potash fertilizer on corn stalk rut and yield of corn were conducted in 1991 ～1993.The result showed that the corn stalk rot could be controlled by applying potash fertilizer.It is an effective way to control corn stalk rot by applying N.P.K rationally.The control effects were 7.52～65.15% with different corn varieties.Potash fertilizer can improve the agronomic character of corn and increase corn yield by 3.99～13.92%.An optimum amount of potassium chloride was 15kg/mu.更多还原