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我省五十年代到七十年代,以提高复种指数。发展绿肥-双季稻为中心的耕作制度改革(包括旱改水、籼改粳、一熟改二熟、二熟改三熟),是取得了很大成绩的。但是由于片面贯彻“以粮为纲”,形成“全面插秧”,作物过分单一,长期连作,使作物单产徘徊不前,土壤质地恶化,生产成本逐年增加,而收益渐见减少。因此,改连作为轮作,实行合理的轮作制度,已成为我省耕作制度改革的中心环节。
Fifties to seventies in our province, in order to improve the crop multiple index. The development of green manure - double crop of rice farming system reform (including dry and drought water, indica to japonica, a cooked to two, two from three), has made great achievements. However, due to the unilateral implementation of “taking grain as the key link” and the formation of “comprehensive planting”, the crops are overly single and long-term continuous cropping allows crop yields to stagnate, the soil texture deteriorates, and the production costs increase year by year, while the benefits gradually decrease. Therefore, reconnection as a rotation, the implementation of a reasonable rotation system, has become the center of our province farming system reform.