一、玉米水稻轮作制的增产效果富州县现有耕地面积27万亩,其中水田19.18万亩,旱地7.9万亩。在粮食产量结构中稻谷占第一位,玉米第二位。历史上水田多数是种植一季中稻,解放以来,尤其是十多年来,大部分水田(占90％左右)已逐步由单季稻发展为双季稻,为增产粮食起了很大的作用。但是,全县有3.5万亩左右的水田 First, the yield-increasing effect of corn and rice rotation system Fuzhou existing cultivated land area of ​​27 mu, of which 191,800 mu of paddy fields, dry land 79,000 mu. Rice ranks first in the grain output structure and second in corn. Historically, paddy fields have mostly planted a quarter of medium-sized rice. Since the liberation, especially in the past decade or so, most of the paddy fields (about 90% of the paddy fields) have gradually developed from single-season rice to double-season rice, which has played a significant role in boosting grain output. However, the county has about 35,000 acres of paddy fields