金华地区稻田,原来每年有的种植绿肥(或春粮)—早中稻(或早稻)—秋杂粮;有的种植绿肥—间作稻;有的种植春粮(或冬闲)—迟中稻(或单季晚稻)等等。自1956年随着农业合作化运动的发展,水利条件逐步改善,灌溉面积不断扩大,开始推广连作稻以来,各地相继出现了绿肥—连作稻以及春粮—连作稻等新的复种制度,使稻田原有耕作制度发生了很大变化。十多年来金华地区广大贫下中农的生产斗争实践证明,改早中稻为早稻,有利避灾保收;连作晚稻的增产潜力通常可比秋杂粮 Jinhua paddy fields, the original annual green manure (or spring) - early or middle (or early rice) - autumn miscellaneous grains; some green manure - intercropping rice; and some planting spring grain (or winter) - late middle and late rice Late rice) and so on. Since 1956, with the development of the agricultural cooperation movement, water conservancy conditions have been gradually improved and irrigation area has been continuously expanded. Since the promotion of continuous cropping rice, new cropping systems such as green manure-cropping continuous cropping and spring grain-cropping-paddy have emerged one after another, The original farming system has undergone great changes. Over the past decade or so, the practice of producing the vast number of poor and middle peasants in the Jinhua area has proved that transforming early middle rice into early rice is good for disaster prevention and protection. The yield potential for continuous cropping late rice is usually comparable to that of autumn grain