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在批林批孔运动的推动下,为了摸索间作套种三种三收的高产规律,上金山大队科技组在大队党支部领导下,从1972年起开始搞三种三收高产试验田,当年三茬合计亩产1,478.3斤,创造了全大队最高纪录。1974年终于突破了亩产双千斤关,上茬小麦645.5斤,中茬套种玉米1,008斤,下茬直播高粱
In order to explore the inter-crop intercropping three kinds of three harvest high yield rules, driven by the pro-Lin Pok campaign, under the leadership of the party branch of the Brigade, the Jinshan Brigade Science and Technology Group began to engage in three kinds of high-yielding experimental fields of three harvests from 1972, Total mu yield 1,478.3 pounds, creating the highest record of the entire brigade. In 1974, it finally broke through the double kilogram per mu yield, 645.5 kilograms of wheat on the previous crop, 1,008 pounds of interplanted corn in the stubble field, and the second direct sowing of sorghum