不同使用年限漂浮育苗盘对烟苗素质的影响

Effect of Floating Seedling Tray with Different Service Life on the Quality of Tobacco Seedlings

本文研究不同使用年限漂浮育苗盘对苗期各阶段苗龄、大十字期烟苗长势、成苗期烟苗素质、苗期病害的影响。试验结果表明,使用新育苗盘的烟苗前期生长慢,小十字期后生长加快,成苗期烟苗正常,长势强,达到壮苗标准,苗期无病害;已使用2年育苗盘的烟苗整体较好;已使用3年育苗盘的烟苗差于新盘或已使用2年育苗盘的烟苗;已使用4年育苗盘的烟苗较差,有病害。整体来看,已使用3年的育苗盘需要慎用,已使用4年的育苗盘需要及时更换。

Effect of floating seedling tray with different service life on seedling age, growth of tobacco seedlings in big-cross stage, quality of tobacco seedlings and occurrence of tobacco seedling diseases was study in the paper. The results showed that the growth of tobacco seedling using the new tray was slow in the early stage, and accelerated after the small-cross stage. The tobacco seedlings in the seedling stage were normal and strong, reaching the standard of strong seedlings, and there were no diseases in the seedling stage. The tobacco seedlings were generally better for using floating seedling tray 2 years. The tobacco seedlings that had been used for 3 years were worse than those of the new tray or those that had been used for 2 years. The tobacco seedlings which had been used for 4 years were poor and had diseases. As a whole, the seedling tray used for 3 years should be used with caution, and used for 4 years should be replaced.