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本文用计算气候可能产量的方法,综合、定量地分析全省各地气候条件对主要作物适宜程度的差异性。为发挥气候资源优势,取得作物高产稳产,确定了各作物的主栽区,并进而提出了各地作物结构的调整方案。按当前的单产水平计算,水稻、玉米、大豆、高粱、谷子等五种主要作物的种植比例调整后,五个作物的全省总产量将比1980—1982年平均值提高4.5％,其中扶余等20个重点产粮县增产7亿斤以上。最后指出,上述结果是适应于当前生产水平的作物布局方案,随着生产水平的提高和新技术的应用,作物种植结构还需继续调整,以取得更大的经济效益。
In this paper, the method of calculating the possible yield of climate is used to comprehensively and quantitatively analyze the difference of suitability of main crops between climatic conditions across the province. In order to give full play to the advantages of climatic resources and achieve high and stable crop yield, the main planting areas of each crop were identified, and the adjustment plan of crop structure was put forward. According to the current yield level, the total output of five crops will increase 4.5% over the average of 1980-1982 after adjustment of the planting proportions of the five major crops such as rice, corn, soybean, sorghum and millet, among which Fuyu and others 20 key grain-producing counties increased production of 700 million kilos. Finally, it is pointed out that the above result is a crop layout plan adapted to the current production level. With the improvement of production level and the application of new technologies, crop planting structure needs to be further adjusted in order to achieve greater economic benefits.