春烟大田管理要点

• 作 者: 刘永熙
• 机 构: 中国农业科学院烟草研究所,
• 出 处: 农业科技通讯
• 发表日期: 1982年05期
• 关键词: 春烟 大田管理 烟苗移栽 管苗 叶数 发根 发苗 烟叶 旺长期 根系

一、伸根期从烟苗移栽成活到株高30厘米左右、叶数14片左右为伸根期,约经40—50天。此期的管理重点是促进根系生长。根据“管苗先管根,发苗先发根”的经验,在春烟移栽后,要改变过去先浅锄后深锄的作法,一开始就进行纵横深锄,以起到保墒、增温、通风和发根的作用。

First, the rooting Transplant survival from tobacco seedlings to plant height of about 30 cm, the number of leaves for the root of about 14, about 40-50 days. The focus of this period of management is to promote root growth. According to the “tube seedling first tube root, hair seedling first hair root” experience in the spring smoke after transplanting, to change the past, the first shallow hoe after the practice of deep hoe, the beginning of the horizontal and vertical deep hoe, in order to play preserving, increased Warm, ventilated and hair roots.