“大沟麦套种”,是莒南县厉家寨大队广大贫下中农,在“农业学大寨”的群众运动中,运用毛主席的哲学思想指导科学种田,创造的一种新的种植方法。近几年,在临沂、烟台、昌潍等地区大面积推广的过程中,又有新的发展,对促进农业增产起了一定的作用。为了总结“大沟麦套种”的经验,以便更广泛的推广运用,我们选择了临沂、昌潍、烟台地区的部分县、市进行了调查。现将调查情况报告如下: “Big ditch wheat intercropping” is the vast middle and low income middle peasants of Lijiazhai Brigade in Junan County. In the mass movement “Learning from Dazhai in Agriculture”, it uses Chairman Mao’s philosophy to guide the cultivation of science and create a new cultivation method. In recent years, there have been new developments in the large-scale popularization of Linyi, Yantai and Changwei areas and played a certain role in boosting agricultural production. In order to summarize the experience of “big ditch intercropping”, in order to promote wider use, we have selected some counties and cities in Linyi, Changwei, Yantai to conduct a survey. The investigation report is as follows: