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伊犂地区历年实行单熟制,一年只收一季作物,夏收作物之后,一般休闲,到秋季播种冬麦或翌年种早、晚春作物.休闲时间长,对土地利用很不经济.另方面,随着生产的发展,争取稳产高产,肥源问题急待解决.利用作物收种间隙发展绿肥生产,是当前急待研究解决的问题.伊犂地区无霜期130—160天,种植的作物,可按播种和收获时间,分为以下几个类型:1.早春夏收作物:春季开犂后到四月中旬
In the Yili region, single cropping system was adopted in the past years, and only one crop was received in one year. After harvesting in summer, the crop was generally relaxed, winter wheat was planted in autumn or early and late spring crop was planted in the following year, which was not economical for land use. The development of production, strive for steady and high yield, fertilizer problems urgently need to be resolved.Using crop gap to develop green manure production is the urgent need to study and solve the problem.Ili region frost-free period 130-160 days, planting crops, according to sowing and Harvest time, divided into the following types: 1. Early spring summer harvest crops: Plow spring after mid-April