双晚杂交稻采用河砂浸种催芽新方法,具有简便易行,省种、省工、省工具的优点,适合农户应用。采用这一方法催芽,催芽率可达98％以上。其具体做法是:将4—5份淘洗干净的湿河砂与1份干种谷(不需浸种)混合拌匀,堆放在室内水泥地上,或装在箩筐中,注意不要压实,堆完后盖上一层湿砂,48小时内不翻动,若砂粒缺水发白可淋少量水,待种谷破胸整齐后即可连砂粒一同播入秧田。采用这种方法必须注意:①河砂要选用粗细适中、均匀的,不宜用大粒砂和粘土过多的细砂,一般以建筑用砂为宜;②谷砂不宜堆得过厚,以10—15厘米为好;③不要 Double late hybrid rice sand soaking by sprouting a new method, with easy, provincial, provincial workers, the advantages of tools for farmers to use. Using this method germination, germination rate of up to 98%. The specific practice is: 4-5 parts of washed wet river sand and 1 dry seed Valley (without soaking) mixed mix, stacked on the floor of cement indoors, or in baskets, be careful not to compaction, pile After the end of covered with a layer of wet sand, 48 hours does not flip, if the sand dry white water can be poured a small amount of water, to be kind of broken breast chestnut tidy even with the sand into the seedling. The use of this method must be noted: ① river sand to choose the appropriate thickness, uniform, not with large sand and clay too much sand, general construction sand is appropriate; ② sand should not pile too thick to 10- 15 cm as well; ③ do not