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为改进稻区“稻稻肥”耕作制度的生产单一性,和克服由此产生的稻田理化性状变差、地力下降等弊病,探索建立生物产量和经济效益高、生态平衡的农业生态体系,1982年,我们在长沙县谷塘公社高岸大队进行了春大豆——杂交晚稻、春玉米——杂交晚稻和早稻——杂交晚稻的试验,对三种复种方式的生物产量、经济效益、土壤理化性状、以及依此改善牲猪饲
In order to improve the production uniformity of the rice-paddy farming system in the rice area and overcome the shortcomings of the physical and chemical properties, the decline of the soil fertility caused by the rice paddy cultivation, the paper explores the establishment of an agro-ecological system with high biological yield and economic benefits and ecological balance. 1982 In the year, we conducted spring soybean-hybrid late rice, spring corn-late hybrid rice and early rice-late hybrid rice in the team of Gaobian of Gu Tong commune in Changsha County. The bio-yield, economic benefits, soil physical and chemical properties , And to improve pig feed accordingly