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在适宜氮素的基础上,采用增加磷、钾肥的投入,同时减少传统分蘖肥和返青肥的施用比例,增加基肥和后期拔节孕穗肥使用量的肥料运筹试验手段,达到了促进分蘖,延长花后叶片光合功能期,提高群体成穗率,增加每穗粒数和粒重,从而达到提高产量的作用。
On the basis of suitable nitrogen, by using more phosphorus and potash fertilizer, reducing the application ratio of traditional tillering fertilizer and returning green manure, and increasing the amount of basal and late-stage jointing booting fertilizers, Posterior leaf photosynthetic period, increase the rate of population ear, increase the number of grains per panicle and grain weight, so as to achieve the role of increasing yield.