许昌烟区从1983年到1985年进行了烤烟起垄栽培对比试验,对提高烟叶质量、产量起到良好效果,1986年进行大面积推广,深受群众欢迎。1.起垄栽培增加地表受光面积,提高土壤温度,促使烟苗早发旺长,多生根、早生根。据魏都区测量,四月中旬至五月中旬, Xuchang tobacco from 1983 to 1985 conducted a contrast cultivation of tobacco ridge cultivation, to improve the quality of tobacco, yield has played a good effect, large-scale promotion in 1986, by the masses. 1. Ridge cultivation to increase the surface light receiving area, increase soil temperature, prompting the early emergence of tobacco seedlings long, more rooting, early root. According to Wei Du area measurement, from mid-April to mid-May,