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二、肥水调控技术 1.移栽田的肥水调控 ①施肥原则。优质稻对营养元素的需求有其本身的特点。试验表明,较高的氮磷钾配比,配合一定比例的有机肥和镁、硫、钙对提高产量和米质有明显效果。高产优质施肥原则为:以有机肥和无机肥配合为主体,大量元素和中微量元素相结合,采取“稳前攻中保后”的施肥方法,提高肥料利用率,确保全期稳长旺长。
Second, fertilizer regulation technology 1. Transplantation of fertilizer regulation ① fertilization principles. The demand of high-quality rice for nutrients has its own characteristics. Experiments show that a higher proportion of NPK, with a certain percentage of organic fertilizer and magnesium, sulfur and calcium to improve yield and quality have a significant effect. The principle of high yield and good fertility fertilization is that with the combination of organic manure and inorganic fertilizer as the main body, a large amount of elements and trace elements are combined to adopt the fertilization method of " .