烟草垄作技术在豫西应用的浅见

• 作 者: 杨丁元
• 机 构: 三门峡烟草分公司,
• 出 处: 烟草科技
• 发表日期: 1987年04期
• 关键词: 烟草 地面反射率 受光面积 土壤热容量 三点 面积差异 导热率 光照 地温 土层

据国内外大量有关烟草垄作技术,烟草起垄移栽的作用大体可归纳为三点:一是能提高地温。由于起垄后地表受光面积一般比不起垄增加30%以上(垄越高增加面积越大,垄越低与不起垄面积差异越小),白天接受光照面积增大;加之起垄改变了土表状态,土层疏松,地面反射率降低,散射幅射的吸收有所增加,土壤热容量大,导热率小,散热较平作缓慢,所以,垄作温度比平作高。二是有利于排灌,能改善田间小气

According to a large number of domestic and international tobacco ridge technology, tobacco ridging transplanting role can be generally summarized in three points: First, to increase ground temperature. Since the surface area of ​​the ridge after the ridge is generally less than the light-receiving area increased by more than 30% (ridge increased the greater the area increased, the ridge less and no ridge area the smaller the difference), receiving light during the day to increase the area; Soil surface state, loose soil, ground reflectance decreased, the absorption of scattered radiation increased, the soil heat capacity, thermal conductivity is small, the heat is relatively flat for slow, so the ridge temperature higher than the flat. The second is conducive to irrigation and drainage, can improve the stale field