据研究,麦子从拔节到开花期间,吸收钾素占全生育期的59.89%。大麦主茎第七到八叶期,正处在起身拔节阶段。这时正是基肥、腊肥中的有机肥料逐步释放养分发挥作用的时候。这时增施钾肥,能促进大麦对氮、磷肥的吸收,对防止部分大分蘖的消灭有良好的作用,能提高成穗率。 According to the study, wheat from jointing to flowering period, the absorption of potassium accounted for 59.89% of the whole growth period. Barley main stem seventh to eight-leaf period, is in the stage of uplifting. At this moment, it is time for the base fertilizer and the organic fertilizer in the wax fertilizer to gradually release nutrients. At this time increase potash, barley can promote the absorption of nitrogen and phosphate fertilizer, to prevent the elimination of some large tillers have a good effect, can increase the rate of ear into.