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在冀东北两茬积温不足地区，以两茬作物持续高产高效为目标，利用农业生态学原理，采用定点、单项、组合优化和示范重演等方法，通过作物种植模式的改良，提高环境资源的转化率及系统生产率。经过３ａ的研究，提出了以两茬套种持续高产高效为特点的种植模式。与当地习惯的带田套种和两茬复种比较，生育期间积温增加３４６．２～３８４．９℃，光能利用率分别提高０．３１％和０．１４％，产量分别提高３１．０％和１９．０％。产值分别增加２７．８０％和１３．６５％，为该区“两高一优”农业的建设提供了栽培管理技术依据。
Based on the principle of agroecology and adopting the methods of fixed point, single item, combination optimization and demonstration re-enactment, the crop planting pattern was improved to improve the conversion of environmental resources Rate and system productivity. After 3 years of research, put forward to two continuous cropping continued high yield and efficiency of planting patterns. Compared with the field intercropping with field intercropping and double stubble multiplication, the accumulated temperature increased by 346.2 ~ 384.9 ℃ during the growth period, the light energy utilization rate increased by 0.31% and 0.14% respectively, and the output increased by 31.0% and 19.0%. The output value increased by 27.80% and 13.65% respectively, which provided technical basis for cultivation and management for the construction of “two high and one excellent” agriculture in this area.