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三年来,在黄粘土、砂壤土实行少(免)耕法栽培水稻,均有普遍的增产趋势。少(免)耕不翻乱土层,保持了土体的原状稳态结构,增强了抗逆外来的不良环境,稳定和协调了土壤肥力,这对促进水稻早发,稳长具有重要意义。水田渍水耖耙是造成土壤结构破坏、粘闭,影响根系活力和作物产量的主要原因。因此水田必要的耕作应尽可能采取干耕干耙,以不翻乱土层为原则,同时必须以种植制度为主体,采取不同耕法的有机配合,以建立良性生态循环、用养结合、低耗高效的土壤耕作新体系。
In the past three years, there has been a general tendency of increasing yield in the practice of using less (free) tillage cultivated rice in yellow clay and sandy loam. Less (free) plowing does not overturn the soil layer, maintaining the original stable structure of the soil, strengthening the unfavorable external environment, stabilizing and coordinating the soil fertility, which is of great importance to promote rice’s early onset and stable growth. Paddy waterlogging rake is the main reason for soil structure destruction, sticking, affecting root vigor and crop yield. Therefore, the necessary cultivation of paddy field should be as far as possible to take dry rake, in order not to disturb the principle of the soil, at the same time must be the planting system as the mainstay to take the organic farming with different methods to establish a virtuous cycle of ecology, with raising combination, low Efficient soil cultivation system.