论文部分内容阅读
一、半旱式种稻养鱼的优越性和机理经过几年的实践证明,半旱式耕作法产量高,成本低,效益高,增加粮农收入,调动种粮积极性,已显示出极大的优越性。 1、稻田起垄作埂栽水稻,沟中养鱼,不仅改变了平栽水稻土壤全面处于长期淹水状况,而且稻田总面积比平栽增加30％左右。同时,做埂增厚了土壤,提高了土壤肥力,增加了蓄水量,使稻在垄上长,鱼在沟中肥,各有生成的时空和发挥优势的场所。
First, the advantages and mechanism of semi-dry rice farming After several years of practice has proved that semi-arid cultivation method of high yield, low cost and high efficiency, increase food and agriculture, to mobilize the enthusiasm of grain, has shown great Superiority. 1, paddy ridge Ridge planting planted rice, ditch fish, not only changed the plain planted paddy soil in a comprehensive long-term flooding, and the total area of rice paddy increased by about 30%. At the same time, the soil is thickened, the soil fertility is increased, the water storage is increased, the rice is long on the ridge, and the fish is fertilized in the ditch. Each has its own space-time and place for exerting its advantages.