摘要
针对早稻催芽育秧中存在的催芽难、成秧率低 ,遇异常天气易造成烂秧等问题 ,于 1991～ 1993年进行了播谷育秧与催芽育秧的比较研究。指出播谷育秧比催芽育秧具有许多优越性 ,并阐述了播谷育秧的生育特点。
Because of the difficulty in pregerminating, low grown-up seedling rate and seedling rotting easily happened under unfavourable weather conditions for early rice, especially for early hybrid rice, we conducted the studies on growth and developmental characteristics of seedlings raised with the method of sowing nongerminated seeds (SNGS) during 1991 and 1993. The results were as follows: The temperature on the seedling bed covered with plastic sheets of SNGS was lower than that of conventional seedling raising menthod i.e. that of sowing germinated seeds (SGS) all the time in seedling stage; SNGS had a slower growth before but a faster growth after 3-leaf seedling stage than SGS had and had a similar growth approaching as transplanting to SGS, and after transplanting, SNGS had a slower leafing rate, started tillering earlier, had a earlier peak tillering stage and a little delayed tillering stage to maximum number than SGS did; The grown-up seedling rate and yield characters of SNGS were better than those of SGS.
出处
《杂交水稻》
CSCD
北大核心
1994年第2期17-20,共4页
Hybrid Rice
关键词
早稻
生育
直播
育秧
early rice
seedling raising
sowing nongerminated seeds
growth and development
