山东省人多地少,各种作物争地矛盾比较突出,将现在通行的一年二作二收农作制度发展为一年三作三收,不但能缓和上述矛盾,还能节约土地、充分利用自然资源、提高农业综合效益和增加农民收入。“20厘米+40厘米”小麦种植模式是在山东农业大学余松烈院士指导下,陈雨海、赵秉强两位 In Shandong Province, there are many people who have fewer land and more land, and the contradictions among various crops have become more prominent. They have now developed the two-year-old and second-income farming systems now in operation for one year, three crops for three crops and one crop each year, not only alleviating these contradictions but also saving land Make use of natural resources to improve the overall efficiency of agriculture and increase the incomes of peasants. “20 cm +40 cm” wheat planting mode is under the guidance of academician Yu Songliang Shandong Agricultural University, Chen Yuhai, Zhao Bingqiang two