| 遮光对小棚漂浮育苗的影响 |
| |
| 引用本文： | 代飞,张昆,段凯,邓道茂,王修林.遮光对小棚漂浮育苗的影响[J].安徽农业科学,2007,35(33):10741-10742. |
| |
| 作者姓名： | 代飞 张昆 段凯 邓道茂 王修林 |
| |
| 作者单位： | 贵州省安顺市烟草公司,贵州安顺,561000 |
| |
| 摘 要： | 目的]有效解决小棚漂浮育苗不易成功的问题。方法]用松枝(杉枝)、遮阳网、草扇进行遮光,于2002~2004年研究了遮光对小棚漂浮育苗的影响。结果]随着遮光程度的增加,出苗率呈逐渐上升趋势,在遮光度达25.0%,出苗率接近100%,再增加遮光程度,出苗率稳定在90%以上。遮光度在20.0%~30.0%时,烟苗素质好,随着遮光程度增加,烟苗素质逐渐减弱。遮光时间从播种至小十字期比较适宜,遮光的最关键时期是刚开始出苗时。湿松枝(杉枝)遮盖棚面对烟苗出苗率效果最好,其次为遮阳网>草扇>对照。遮光能稳定小棚内温度,4种遮光方式的效果为草扇>松枝(杉枝)>遮阳网>未遮光(对照)。遮光还能有效减轻自然灾害对烟苗的伤害。结论]透光率70.0%~80.0%的遮阳网对小棚漂浮育苗的效果最好。
|
| 关 键 词： | 烤烟 小棚漂浮育苗 遮光 影响 |
| 文章编号： | 0517-6611(2007)33-10741-01 |
| 修稿时间： | 2007年7月19日 |
Influence of Shading on Flue-cured Tobacco Seedling in Little Canopy Floating System |
| |
| DAI Fei.Influence of Shading on Flue-cured Tobacco Seedling in Little Canopy Floating System[J].Journal of Anhui Agricultural Sciences,2007,35(33):10741-10742. |
| |
| Authors: | DAI Fei |
| |
| Abstract: | Objective]The study aimed to effectively solve the problem that the flue-cured tobacco seedlings in little canopy floating system was not easy to succeed.Method] The influence of shading on little canopy floating system was studied by shading with pine branches(fir branches),shading net and grass in 2002～2004.Result] The seedling emergence rate was increased gradually along with the increment of shading degree.When the shading degree was up to 25 the seedling emergence rate was near 100%,and when shading degree was increased again the seedling emergence rate was steady over 90%.The quality of tobacco seedlings was good when the shading degree was at 20.0%～30.0%.The quality of tobacco seedlings was weakened gradually along with the increment of shading degree.The shading time was more suitable from sowing to the little cross period,and the important stage for shading was the time of the seedlings just started coming out.The effect of shading canopy face with wet pine branches(fir branches) was best,the next was shading net > grass > CK(without shading).Shading could keep the temperature steady in the canopy,the effect of 4 kinds of shading ways was grass > pine branches(fir branches) > shading net > CK.Shading also could effectively alleviate the damage of natural disaster to tobacco leaf.Conclusion] The shading net with transmittance of 70.0%～80.0% gets best effect on the flue-cured tobacco seedlings in little canopy floating system. |
| |
| Keywords: | Flue-cured tobacco Little canopy floating system Shading Influence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
