目前,南方双季稻区水稻浸种催芽时,早稻普遍推行的有温室催芽法、煤灰催芽法、地窖催芽法等;晚稻有“三起三落”法。晚稻浸种催芽期间,外界条件比较适宜种子萌发,极少有烂种、烂芽现象。早稻则不然,外界条件相应晚稻来说,气温低、气候变化大。前面提到的那些早稻催芽方法(以下简称常法)要求亦较严格。且种谷上堆破胸阶段,时有不升温、发生霉口;或高温过头,出现烧苞现象。因此,每年仍有相当一部分农户存在着早稻种子发芽率不高,烂 At present, rice germination in the southern double cropping rice region has been popularized during the early rice cultivation by the methods of greenhouse germination, coal ash germination, cellar germination, etc .; During late rice soaking and germination, the external conditions are more suitable for seed germination, very few rotten and rotten buds. Early rice is not the case, corresponding to late rice conditions, the temperature is low, climate change. The earlier mentioned methods of early rice germination (hereinafter referred to as the normal method) are also more stringent requirements. And kind of valley heap chest break stage, when there is no warming, mildew occurred; or overheating, there burning phenomenon. Therefore, there are still a considerable number of peasants each year. The germination rate of early rice seeds is not high and rotten