耐低钾玉米品种的节钾效果研究

Study on Economizing Potassium Fertilizer of Low Potassium-tolerant Corn

以耐低钾玉米品种为研究对象,以普通玉米品种为对照,在2种施氮量、3种施钾量水平下对耐低钾玉米品种的生长发育、产量进行研究。结果表明,两类玉米品种对施钾量的反应敏感程度不同。耐低钾品种在低量施钾水平下生长发育状况良好且产量较高,而不耐低钾品种只有在较高施钾量水平下才能正常生长发育获得较高产量。

The article studied growth and yield of low potassium -tolerant cam varieties and average corn varieties in two nitrogenous fertilizer factors and three potassium fertilizer levels. The results showed that susceptibility of two types varieties was different on amount of nitrogenous fertilizer. Low potassium -tolerant corn varieties grew was well and yield was high in low amount of potassium fertilizer, but average corn varieties could only gain high yield in a amount of potassium fertilizer.