毕节县林口区渭河乡青年农民周尚民,连续三年科学种烟创高产,总收入33100元。1985年,他转包别人30亩地种烟,当年收烟叶4835公斤,总收入3000多元。1986年,他将转包的30亩种烟地中12亩与甘蓝套种,另外18亩与小麦套种。虽当年受旱、洪、雹、风、虫等灾害影响,仍收甘蓝4万公斤,烟叶3050公斤、小麦1250公斤,现金总收入15100元。1987年,他没再转包别人的地,仅种5亩责任田,收烟叶1000多公斤,其中一级黄烟占85％,收入现金5000余元。周尚民科学种烟的经验: 一、选育良种选择茎秆粗壮、叶片厚的植株,先通过打顶抹杈,留一株长势最好的作留种对象,剔除细弱的花蕾,留取优良饱满的种子作来年用种。选种时要求方圆100～200米无其它品种烟。二、选好苗床苗床以当年未种过烟和蔬菜地为佳,若当年种过,则应在整地前用敌百虫、敌敌畏、石灰、配合除草剂混合施后再犁地,整地后10～15天 Zhou Shangmin, a young farmer in Weihe Township, Linkou District, Bijie County, achieved a record high yield of scientific tobacco for three consecutive years with a total income of 33,100 yuan. In 1985, he subcontracted 30 acres of land for other kinds of tobacco, then received 4835 kilograms of tobacco leaves, with a total income of more than 3000 yuan. In 1986, he will subcontract 12 acres of 12 acres with cabbage intercropping 30 acres of tobacco, and an additional 18 acres and wheat interplanting. Although affected by disasters such as drought, flood, hail, wind and insects in that year, 40,000 kilograms of cabbage, 3050 kilograms of tobacco and 1250 kilograms of wheat were still received. The total cash income was 15,100 yuan. In 1987, he no longer subcontracted to others, only 5 acres of responsibility field, received more than 1,000 kilograms of tobacco, of which 85% of a class of yellow smoke, cash income of 5,000 yuan. Zhou Shaomin scientific experience in the cultivation of tobacco: First, the selection of breeding varieties Stalk sturdy, thick leaves of the plant, first by twisting top twigs, leaving a growth potential for the best species to stay species, excluding the delicate buds, leaving excellent full Seed for the coming year. Selection of a radius of 100 ~ 200 meters requires no other varieties of tobacco. Second, the selection of seedbed seedbed in that year did not plant tobacco and vegetables is better, if the year was planted, it should be before the preparation of soil with trichlorfon, dichlorvos, lime, mixed with herbicides and then plow, after the preparation of 10 ~ 15 days