我县单季稻区约有20％左右的山坞田,因受自然条件的制约,长期以来一年一熟,产量低,效益差。为了探索这类农田的改造和利用途径,根据豆、稻不同生物学特性,扬春大豆耐寒、耐湿、早播、早熟之长,避水稻早播烂秧、僵苗之短,充分利用山坞田光、热资源,采取早春种豆,夏季种稻,一年两熟。经过三年(1983年～1985年)的试验,取得成效,现归纳如下。 About 20% of Shanwutian is in single-crop rice area in our county. Due to the restriction of natural conditions, it has been cooked for a long time in a year with low yield and poor efficiency. In order to explore the ways of transformation and utilization of this kind of farmland, according to the different biological characteristics of beans and rice, Yangchun soybean is cold-tolerant, wet-resistant, early-sowing and early-maturing. Tian Guang, heat resources, to take early spring beans, summer paddy, cooked twice a year. After three years (1983 ~ 1985) test, and achieved results are summarized as follows.