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一、水稻塑盘旱育大苗抛秧生长特征特性1.秧苗在苗床期表现为“生长抑制型”特征特性根据研究,水稻塑盘旱育大苗抛秧秧苗在苗床期,首先是秧苗地上部分,在干旱式水分管理和化学控苗作用下,其株高一般比水育秧苗降低30%～40%,叶龄减少0.5～1.0片;其次是地下部分,秧苗根系在秧盘孔
First, the characteristics of paddy rice plastic tray seedling throwing growth characteristics of seedlings 1. Seedlings in the seedbed stage as a “growth-inhibitory” characteristics According to the study, paddy seedling plastic tray seedling throwing seedlings in seedling stage, the first is the seedling aerial parts, Under the effect of arid water management and chemical control seedling, its plant height is generally reduced by 30% -40% and its leaf age is reduced by 0.5-1.0, compared with that of aquatic seedlings. The second is the underground part,