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对呼伦贝尔市阿荣旗三道沟镇商品粮生产基地主要粮食作物的光合、光温、气候、气候-土壤资源潜力进行分析,结果表明热量条件是限制该地区粮食增产的主要非可控因素,如能改善热量条件,还有20%～30%的增产潜力;该地区的降水条件对玉米、大豆、马铃薯、水稻四种主要粮食作物的满足程度在80%左右,表明降水量及其季节分布是该镇粮食产量低的制约因素之一,存在的问题是水分利用率较低;土壤养分状况对马铃薯和水稻增产未表现明显的限制作用,而对玉米和大豆增产却是最主要限制因素。
The analysis of photosynthesis, light temperature, climate, climate-soil resource potential of the main food crops in Sandaoogou Town, Arong Banner, Hulunbeir City, shows that the heat conditions are the main non-controllable factors that limit the grain yield increase in this area, Heat conditions, and 20% ~ 30% yield potential; the precipitation conditions in the region on the maize, soybeans, potatoes, rice four major food crops to meet the degree of about 80%, indicating that the precipitation and the seasonal distribution of the town One of the limiting factors of low grain yield is the low water use efficiency. Soil nutrient status does not show any obvious restriction on the yield increase of potato and rice, but the main limiting factor for corn and soybean yield increase.