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水旱轮作,用养结合,粮棉两利。从我县各个示范点的结果来看,已初步显示出它的生命力。例如涨渡湖农场,自1972年以来,逐步推行水旱轮作,粮、棉产量不断上升,土壤肥力有所提高。因为水旱轮作,具有如下作用。一、改善地力。水旱轮作,由于作物变化,耕作管理变化,土壤性能亦随着发生变化。根据涨渡湖农场调查,水改旱后,土壤容重每立方厘米为1.108克,土壤孔隙率为
Crop rotation, with the combination of nutrition, grain and cotton benefit. From the results of various demonstration sites in our county, it has initially shown its vitality. For example, the Jhonghu Lake Farm has gradually implemented the rotation of grain and cotton since 1972 and the production of grain and cotton has been on the rise with the increase of soil fertility. Because of drought and drought rotation, has the following role. First, to improve soil fertility. Due to changes in crops and tillage, soil and water properties change as water and wind rotate. According to the survey of the farmland Lake, water to drought, the soil bulk density of 1.108 grams per cubic centimeter, the porosity of the soil