每年在水稻育苗过程中会存在一些问题,出苗不全、出苗不齐、不出苗的现象时有发生,造成不得不补种或重育,增加费用,延误农时。1.造成水稻育苗出苗不全、不齐的主要原因(1)浸种前未进行晒种。浸种前忽略了晒种,种子后熟不足,种子的发芽势和发芽率受到影响,造成出苗不齐、不全。(2)浸种时间短。播种时种子没有充分吸足水分,播种后只有继续吸收水分,才能萌动发芽,因此 Every year in rice seedling there will be some problems in the process, the emergence of incomplete, emerging, no phenomenon of sprouting have occurred, resulting in had replanting or re-education, increase costs, delay farming time. 1. Cause rice seedling emergence, incompleteness of the main reasons (1) Soaking seed before the sun. Ignore the seed soaking before soaking, seed lack of ripening, seed germination potential and germination rate are affected, resulting in emergence of missing, incomplete. (2) soaking time is short. When sowing seed does not fully absorb enough water, sowing only continue to absorb water, germination can germinate, therefore