武运粳8号栽插密度及磷钾肥运筹对群体质量的效应

Effect of Planting Density and Applied P and K Fertilizer on Mass Quality of Wuyunjing No.8

根据本地的土壤气候条件 ,在武运粳 8号高产栽培中 ,选择合理的栽插密度 ,适期适量施用磷钾肥 ,有利于适时够苗 ,减少无效分蘖 ,控制高峰苗 ,提高成穗率 ;有利于改善中后期群体条件 ,培育壮秆大穗 ,提高抗逆性 ,增加抽穗至成熟阶段干物质生产量 ,协调库源关系 ;是构造武运粳

According to the local soil and climate, while cultivating Wuyujing No.8, suitable planting density, P and K fertilizer applied in optimum date and amount are beneficial to achieve enough seedlings, decrease ineffective tillering, control high peak seedling, improve percentage of earbearing tiller, ameliorate the mass conditions at the middle and later stage, cultivate strong and big spike, enhance resistance, increase the amount of dry matter during heading period and maturity stage. All above are the important conditions and effective control ways to achieve high yield mass of Wuyunjing No.8.