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烟草从播种育苗到采收完毕需170—180天,需要≥20℃的积温持续70天以上。而吉林省的无霜期一般只有125—148天,≥10℃的积温只有2183.5—3154.5℃,加之春天干旱少雨,这就决定了烤烟育苗移栽技术在吉林省实施的重要性。现将几年来在生产实践中总结出的经验和新措施介绍如下: 一、种子处理 1.选种:根据各地气候条件,选择优质、高产品种。确定主栽品种后,用清水法选种。将种子放入清水中不断搅拌、揉搓,使之沉淀,一般4—6小时后,去除上浮的杂物,将下沉的饱满的种子捞出备用。
Tobacco from sowing seedlings to harvesting is completed 170-180 days, the need for ≥ 20 ℃ accumulated temperature for more than 70 days. However, the frost-free period in Jilin Province is only 125-148 days in average, and the cumulative temperature of ≥10 ℃ is only 2183.5-3154.5 ℃. Combined with the spring drought, it determines the importance of implementing the transplanted tobacco seedling technology in Jilin Province. Now years experience in the production practices and new measures summarized as follows: First, the seed treatment 1. Selection: According to the climatic conditions, select high-quality, high-yield varieties. After determining the main varieties, with water method selection. The seeds into the water constantly stirring, rubbing, so that precipitation, usually 4-6 hours later, remove the floating debris, the sinking full of seeds remove and spare.