棉花种子播前处理技术一、粒选：先行风选、筛选，以去除秕、碎粒和夹杂物，然后利用冬闲、早春进行人工粒选。粒选时应将棉种平摊在桌面上，一粒粒过目，把外形好，色泽佳、大小均一的留作种用。又有人工手选，才能选出大粒、籽粒饱满的种子，播后才发芽快、发芽整齐，生... Cotton seed sowing pre-treatment technology First, grain selection: the first wind election, screening, to remove 秕, nibs and inclusions, and then use the winter leisure, early spring artificial pelletizing. Grain selection should be spread evenly on the desktop cotton, a grain of the past, the appearance is good, good color, uniform size reserved for use. There are artificial hand-picked, in order to choose a large grain, full of seeds, after sowing germination fast, sprouting neat, raw ...