早稻温床育秧除需要良好持久的热源外,平整厢面、播种和复盖的正确与否也直接决定出苗速度,整齐度和生长的好坏。现把有关平厢、播种操作技术作一简单介绍。厢面必须细碎平整:温床酿热物按计划填满和铺足预定厚度的细土后,初步整平厢面,用竹扫帚把厢面重扫一次,扫去个别渣硝和较大的土坡,然 In addition to the need for a good and long-lasting heat source, the seedbed of early rice hotbed should have a smooth surface, and the correctness of sowing and covering also directly determines the speed of emergence, the uniformity and the quality of growth. Now about the flat, sowing operation technology for a brief introduction. The car must be finely crushed flat: hotbeds stuffed with hot stuff as planned to fill and pave the predetermined thickness of fine soil, the initial level plane, with a bamboo broom to the car surface heavy sweep time, sweeping away individual scum and larger soil Slope, of course