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在计算东北各地主要粮豆作物(玉米、大豆、水稻)光合、光温和气候生产潜力的基础上,根据现实单产占各级资源生产潜力的比率,分析了各地主要作物光合、光温、气候生产潜力实现率及其地理分布.东北区各地作物气候资源实现率差别较大,主要产粮区作物光合、光温和气候生产潜力实现率依次为 30%、40%和 50%左右,中低产区依次为24%、30%和40%左右.通过改土治水,采用良种良法和增加农田投入,作物光温生产潜力实现率可以逐年提高,最终可达到100%,即主要产粮区作物单产可达到18000kg/hm~2～20000kg/hm~2.表1,图4,参4.
Based on the calculation of the photosynthetic and photothermal climate potential productivity of the main grain-and-grain crops (maize, soybean and rice) in Northeast China, the production of photosynthesis, light temperature and climate Potential Realization Rate and Its Geographical Distribution The achievement rate of crop climate resources in Northeast China is quite different, and the achievement rates of crop photosynthesis and light mild climate in the main grain-producing areas are 30%, 40% and 50% Followed by 24%, 30% and 40% respectively.Through the improvement of soil and water, the adoption of the good variety method and the increase of farmland inputs, the realization rate of crop light and temperature production potential can be increased year by year and eventually reach 100%, that is, the yield of crops in the main grain- Reaching 18000kg / hm ~ 2 ~ 20000kg / hm ~ 2. Table 1, Figure 4, Senate 4.