潮土区高产麦田钾肥适宜基追比研究

Study on optional ratio of basic to dressing application of potassium fertilizer in high yield wheat field in Chao soil region

通过大田试验和盆栽试验 ,研究了潮土区高产麦田钾肥不同基追比施用的效果 .结果表明 ,在高产麦田施用钾肥有显著增产效果 ,在各施钾处理的钾肥总量中 ,以 70 %作基施 ,30 %在拔节期追施的效果最好 ,可以显著提高小麦植株吸钾量 ,提高穗粒数和千粒重 ,从而促使小麦产量增加 .

The field and pot cultivating experiments were conducted to study the optional ratio of basic to dressing application of potassium fertilizer in high yield wheat in Chao soil region.The results indicated that application of potassium fertilizer can significantly increase the wheat yield in high yield field,and among the total amounts of Potassium fertilizer of each treatment of fertilizer application,the distribution ratio of 7∶3 is the most suitable.This method of potassium application can increase the potassium use efficiency and thereby increase the amount of wheat heads and thousand kernel weight,thus promote the wheat output.