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山东滕县南王庄大队,自1975年以来,采用粮、薯间作套种,连年创造出较高的产量,号称“粮过千斤薯过万”。例如,1976年在12亩土地上,平均亩产春马铃薯7,200斤,套种玉米1,087斤,秋马铃薯3,500斤;1977年在360亩大面积上,春马铃薯套种玉米,秋马铃薯套种小麦,两季平均亩产马铃薯6,360斤,玉米800斤,小麦700斤;1979年虽然早春遇到低温干旱,后期又遇大雨,但10亩间套作地仍然获得春马
Nanwangzhuang Battalion of Tengxian County, Shandong Province, has used grain and potato intercropping since 1975 to create higher yields in successive years, claiming to have “over 1000 tons of grain and over 10,000 tons of grain.” For example, on an area of 12 mu in 1976, the average yield was 7,200 kg of spring potato, 1,087 kg of intercropped corn and 3,500 kg of autumn potato. In 1977, on 360 hectares of large area, spring intercropping of corn and autumn intercropping of wheat with wheat in two seasons 6,360 kg of mu yield of potato, 800 kg of corn, 700 kg of wheat; in 1979 although the early spring encountered low temperature and drought, the latter case of heavy rains, but 10 acres of intercropping still get Chunma