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稻田种春大豆,是随着杂交晚稻的推广而发展起来的。“春大豆—杂交晚稻”这种水旱轮作复种制,不仅具有用地和养地相结合的优点,更重要的是能错开农事季节,调节双抢期间劳力紧张的矛盾。同时,大豆收割期早,有利于晚稻早插丰产,还可以省工、省肥、省成本。很多单位试验,在亩产1,000—1,400斤的生产水平上,豆稻复种制粮食产最不低于双季稻,在粮食亩产不到1,000斤的情况下,豆稻两熟产量明显高于双季稻,是一种很有发展前途的稻田耕作制。为了种好稻由春大豆,下面着重介绍一下栽培技术。
Spring rice in paddy fields is developed with the promotion of hybrid late rice. The “Spring Soybean-Late Hybrid Rice” crop rotation and seed multiplication system not only has the advantage of combining land use with raising land, but more importantly, it can stagger the agricultural season and adjust the contradiction between labor shortage and double-grab. At the same time, early harvesting of soybeans is conducive to early rice plugging late rice, but also workers, provincial fertilizer, provincial costs. Many units tested that in the production level of 1,000-1,400 kg per mu, the output of double-cropping of red bean was the least no less than that of double-cropped rice. Under the condition of less than 1,000 kg of grain per mu, the yield of double-ripened soybean was significantly higher Double cropping rice is a very promising paddy field farming system. In order to grow rice from spring soybeans, the following focuses on the cultivation techniques.