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近几年,我师水稻获得大面积丰收,主要是采取了前促、中控、后保的施肥方法.这种施肥方法,使水稻在生育期中呈现出前乌(出苗至分蘖盛期)、中赤(无效分蘖至拔节初期)、后青(拔节至成熟)的变化规律,形成主蘖并重、穗粒并重的丰产结构和青秆黄熟、高产不倒的长势长相,达到了高产稳产,收到了显著的经济效益.现将这一施肥法介绍于下.1.播前深施氮磷化肥水稻前期施肥与否和用量是否适当,是稻苗壮弱,分蘖早晚、多少和素质好坏的关键.播前施化肥的原则是:深施入土,土壤要有墒;施量适当,一般亩施三料磷肥12—
In recent years, our division of rice has gained a large area of harvest, mainly adopting the methods of fertilization before, during and after controlling .This fertilization method makes the rice show the former Ukraine (emergence to tillering stage) Red (ineffective tillering to early jointing) and postgraining (jointing to maturity), forming the main tiller with the same weight, the same ear yield and high yield structure, Significant economic benefits.This fertilization method is now introduced in the next .1 before sowing nitrogen and phosphorus fertilizers early rice fertilization or not and the amount is appropriate, rice seedling is weak, tillering sooner or later, the key to the quality and quality of the key The principle of sowing fertilizer before sowing is: deeply applying soil, soil should have soil moisture; appropriate amount of application,