烟草高吸水包衣种及其育苗配套技术研究

Study on pelleted tobacco seed with high waterholding capability and necessary technology for seedling growing

烟草高吸水丸化包衣种播种后，能吸附土壤中的自由水，并在种子周围形成直径为６～７ｍｍ的“蓄水球囊”，经济、有效地供给种子发芽、成苗所需的水分，大大地减少苗床浇水次数和数量，节约了浇水用工。同时，显著促进了烟苗的生长，增加了烟苗的整齐度，提高了烟苗的素质。烟草高吸水丸化包衣种的研制成功是烟草丸化包衣技术的新发展，不仅显著地提高了烟草育苗水平，而且有助于推进烟草种子产业化进程，促进烟草杂交优势的利用。

The pelleted tobacco seed with high waterholding capability was able to absorb the free water in soil.After planting,a 67mm water ball was formed around seed,provided an effective way to supply water for seed germination and seedling growth.It dramatically saved the irrigation times and water amount.In the meantime,it could improve the seedling growth,upgrade the uniform of the seedling,and enhance the seedling quality.The utilization of pelleted tobacco seed with high waterholding capability promoted the development of pelleting technique,and would help the industrialization process of the tobacco seed production and accelerate the use of advantage of the hybrid tobacco variety.