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一、我区农业生产条件的分析 农作物产量的构成因素,一是决定于不同作物及其相应品种的内在生产力;二是外界环境条件对作物需要的协调程度。前者根据我区目前的产量水平,潜力还很大。外界条件主要是光、热、水分和养分。 自治区耕地广阔,光、热资源较为丰富。北疆沿天山一带10℃以上的积温3200—3800℃,无霜期150天左右;南疆和吐鲁番地区10℃以上积温在4000℃以上,无霜期在200天左右,基本上都能满足当地农作物正常生长发育的需要。可见光、热不是影响我区农作物生长发育和产量提高的限制因素。
First, the analysis of agricultural production conditions in our region The composition of crop yield factors, one is determined by the intrinsic productivity of different crops and their corresponding varieties; the second is the degree of coordination of external environmental conditions on crop needs. The former based on the current level of output in our region, the potential is still great. The external conditions are mainly light, heat, moisture and nutrients. The vast arable land in the autonomous region is rich in light and heat resources. The accumulated temperature above 10 ℃ along the Tianshan Mountains in the northern Xinjiang is 3200-3800 ℃, and the frost-free period is about 150 days. The accumulated temperature above 10 ℃ is above 4000 ℃ in southern Xinjiang and Turpan, and the frost-free period is about 200 days, basically meeting the normal growth and development of local crops Need. Visible light and heat are not the limiting factors that affect crop growth and yield in our region.