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为探讨壮秧营养剂对软盘旱育秧和苗床旱育秧的壮秧效果及机理 ,以水稻品种中 - 1 0 0 ,湘早籼 2 8号和中优早 81为供试材料 ,比较研究了 4种壮秧营养剂对水稻软盘旱育和苗床旱育秧苗的生理影响 .结果表明 :壮秧营养剂 T1 ,T2 和 T4对苗床旱育秧苗的根数和茎基宽比对照显著提高 ;壮秧营养剂 T1 ,T2 和 T3对软盘旱育秧苗的生理影响主要表现为根干重、根系α-萘胺氧化力、根系总吸收表面积和活跃表面积、叶片含氮量及叶绿素含量提高的幅度较大 ,T1 和 T2 所表现出的效应差异不大 ,而 T3表现出较大的优势 .生产上应用时 ,早稻软盘旱育秧壮秧营养剂每盘的施用量以 8～ 1 2 g(434孔型 ,直径 2 .2 cm)为佳 ,苗床旱育秧的施用量则采用 75 g/ m2为宜
In order to investigate the effect and mechanism of strong seedling nutrient on sturdy seedling with dry seedling and seedling in dry land, the rice variety Zhongzhao 100, Xiangsaozhong 28 and Zhongyouzao 81 were used as experimental materials to compare the effects of 4 Physiological effects of seedlings with strong seedling seedlings on dry and seedling nursery seedlings of rice with floppy disk were studied.The results showed that seedlings of seedling nursery seedlings with T1, T2 and T4 of seedling were significantly increased in root number and stem- The physiological effects of nutriments T1, T2 and T3 on dry seedlings of floppy disk were mainly root dry weight, oxidative stress of α-naphthylamine, total absorption surface area and active surface area of root, nitrogen content and chlorophyll content in leaves increased significantly , T1 and T2 showed little difference between the effects, and T3 showed a greater advantage.Production applications, early rice floppy seedling nursery seedlings nutrition seedlings per dose to 8 ~ 12g (434-hole type , Diameter of 2 .2 cm) is better, the amount of dry seedling seedbed application rate of 75 g / m2 is appropriate