浦北县地处桂南,届丘陵区,平均每人有水田6分多和坡地1分多。山多田少,增产粮食关键在于提高单位面积产量。解放三十年来,人们在耕作制度改革方面做了大量试验,经历了几次变革。五十年代初期主要是冬闲双季稻,但不少地方还是单季直播稻(撒种和点种)、“捞稿”(早晚稻混插,收割早稻后留下晚稻继续生长)和插一季中稻。合作化后,特别是水利基本过关后,单 Pubei County is located in Guinan, the hilly area, each having an average of more than 6 points paddy fields and more than 1 point. Mountain more fields less, the key is to increase production of grain yield per unit area. In the three decades since liberation, people have done a great deal of experimentation in the reform of the farming system and have undergone several changes. In the early 1950s, mainly double-cropped winter and fallow rice, but in many places it was still single-season direct seeding (sowing and spotting), “fishing draft” (early and late rice intercropping, Medium rice. After the cooperation, especially after the basic water control, single