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五华县示范农场和城镇公社双凤等生产队在“农业学大寨”的群众运动中,试验了两年七造的耕作制度,为人多地少地区粮食大幅度增产闯出了一条新途径。这种耕作制度是在试种一年三造水稻的基础上逐步形成的,以两年为一个轮作周期,即在同一地段上,第一年种两造水稻,冬种绿肥;第二年种三造水稻,冬种粮、肥兼收或粮食作物。
Wuhua County demonstration farm and township commune Shuangfeng and other production teams tested the two-year-old farming system during the “agricultural learning Dazhai” mass movement, thus opening up a new avenue for a substantial increase in grain output in areas with many small areas and small areas . This tillage system is gradually formed on the basis of three kinds of paddy-rice cultivation in one year, taking two years as a rotation cycle, that is, in the same lot, two types of paddy and winter-type green manure are cultivated in the first year; Three made rice, winter grain, fertilizer and food crops.