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针对抛秧稻特有的秧苗直立过程 ,以洗根手插为对照 ,研究了抛秧稻活棵立苗及其生理生态特点。结果表明 ,抛秧稻带土秧苗抛后 ,平躺小苗、中苗、大苗一般分别在 2～ 5、 5～ 6、 7～ 10天内直立。在活棵立苗期间 ,抛秧稻苗体内水分、养分及光合等状况明显优于同质洗根手插苗。根、叶、蘖等生长在数量、质量上也优于同质洗根手插苗。抛秧稻缓苗恢复的先后顺序为发根、出叶速度加快 ,体内养分含有率及干物重的递增。秧苗素质、苗龄、带土状况、苗姿以及水、温等一些内外因素均对抛秧稻活棵立苗有不同程度的间接或直接影响
Aiming at the peculiar seedling throwing rice plant upright process, taking the root plug as control, the study on the seedling throwing rice seedling and its physiological and ecological characteristics. The results showed that after the rice seedlings of throwing rice seedlings were tossed away, the young plants, medium seedlings and large seedlings lay flat in 2 ~ 5, 5 ~ 6 and 7 ~ 10 days respectively. In live Trichosanthes seedlings, Throwing rice seedling body moisture, nutrients and photosynthetic conditions were significantly better than the same root washing seedlings. Roots, leaves, tillers and other growth in the number of quality is better than the same root washing rooted seedlings. Throwing rice seedlings Huanmiaowang the order of recovery for the root, leaves faster, the body nutrient content and dry weight increase. Some internal and external factors, such as seedling quality, seedling age, soil condition, seedling pose, water temperature and so on, all have indirect or direct influence