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一、秧池必须单列,不能夹在移栽稻秧田里。因为抛秧稻抛前需停水,以使秧根干燥,抛时不粘连。如果夹在移栽稻秧田里,则很难做到这一点。一旦秧根湿度过大,抛秧时秧不易分开,既影响了抛秧的均匀度,又多费了劳力。二、大田必须单列,不能插花在移栽稻田里。去年找镇不少农户将抛秧稻和移栽稻种在一块田里。结果造成减产。原因在予两者落谷期和移栽期有先后,生育进程不一致,这样对水、肥的需求难以顾全两者。特别是后期,移栽稻已成熟需要断水,但抛秧稻正处于乳熟阶段,仍需水分,若过早缺水,灌浆不足,造成损失。三、“只能田等秧,不能秧等田”。抛秧的秧龄有严格的要求,一般在18天左右。超龄后秧苗过高,秧根串连,难于抛撒。因此一定要根据大田作物的收获期、劳力状况、机器多少等因素计算好落谷期,视情况分期分批落谷。“只能田等秧,不能秧等田”。万一发生“秧等田”的情况,可以在一叶一心期每60张秧盘用15％的多效唑2克兑水15公斤均匀喷雾来加以控制,喷时板面应排除水层,喷后6小时恢复,抛秧前
First, seedlings must be separate, not in the transplanting rice seedling field. Because throwing rice throwing before throwing water, so that seedlings dry, throwing when not sticky. If caught in transplanting rice fields, it is difficult to do this. Once the seedling humidity is too large, when throwing seedlings not easy to separate seedlings, both affect the uniformity of throwing seedlings, but also more labor. Second, the field must be separate, can not flower arrangement in transplanting rice fields. Last year to find a lot of farmers will throw rice seedlings and transplanting rice in a field. As a result of reduced production. The reason is to have both the valley and transplanting have precedence, fertility process is inconsistent, so that the water, fertilizer demand difficult to take into account both. Especially late, transplanting rice is ripe need water, but thrown rice is in the stage of milky ripe, still need water, if the early water shortage, lack of filling, resulting in loss. Third, “can only field seedlings, can not seedling fields.” Seedling throwing seedlings have strict requirements, usually about 18 days. Over-aged after the seedlings, seedlings in series, difficult to throw. Therefore, we must base on field crops harvest, labor conditions, the number of machines and other factors to calculate the fall valley, depending on the circumstances in phases and down. “Only field seedlings, can not seedling fields.” In the event of “seedling field” situation, you can leaf in a heart phase every 60 seedling tray with 15% paclobutrazol 2 grams watered 15 kilograms of uniform spray to be controlled when the board should be sprayed out of the water layer, after spraying 6 hours recovery, before throwing seedlings