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晒种选种.在播种前10天左右,选晴天上午10时至下午3时进行晒种,连续晒3—4天。既能增强种子活性,提高发芽率和发芽势,又利于幼苗及早拱土,增强抗病能力。播种前进行精选种子,为进行精、少量播种打好基础,利于实现一次播种保全苗。玉米等大粒种子用人工手选种,选粒大、饱满、整齐的种子播种。高粱种要经风选、筛选,去掉秕粒、破粒,保苗率会大大提高。浸种催芽.播种前用55—58℃温水浸胞玉米种子6—12小时,或用同样温度温水浸泡高粱种子3—5分钟,然后捞出空干,装在草袋和麻袋内,放在火炕上,下面再用方木等物垫起。炕温保持在20℃左右,48小时左右即可见芽(胚根),稍晾一下就可播种。注意芽子不要催得过长,以免在
Sunseed selection.On the first 10 days before sowing, sunny day 10 am to 3 pm for the sun, continuous sun 3-4 days. Not only can enhance seed activity, improve germination rate and germination potential, but also conducive to early seedlings arching, enhance disease resistance. Sowing before the selection of seeds, for the fine, a small amount of planting a good foundation, which will help achieve a sowing seedlings. Seeds such as corn and other large seeds are hand-selected, large grain, full, neat seeds sown. Sorghum species to be selected by wind, screening, remove grains, broken tablets, seedling rate will be greatly increased. Soaking seed germination.Supplement corn seeds 55-12 ℃ warm water before sowing 6-12 hours, or soak the sorghum seeds 3-5 minutes with warm water at the same temperature, then remove and air-dry, put in grass bags and sacks, put on the kang On the next, then use wood and other objects pad. Kang temperature maintained at about 20 ℃, 48 hours can be seen buds (radicle), a little dry can sow. Note that buds do not urge too long, so as not to be in