摘要
为了选择在床苗木的最佳越冬方法,经2004-2006年3a的试验,对红松、红皮云杉1、2年生在床苗木采用防寒墙防寒效果显著,比常规的全床覆盖防寒土方法降低成本56.7%,损失株数降低94.6%左右;对3、4年生的红松、红皮云杉苗木采用防风障子防寒,与全床覆盖防寒土相比,降低成本69.7%,损失株数降低78.6%左右,并能为春季育苗生产作业嬴得3一5d的有利时间。
In order to select the best nursery stock in the winter bed method,the 2004-2006 pilot 3a,the Korean pine,red spruce,2-year-old seedling bed in the use of cold wall effect of cold significantly higher than conventional cold cover the entire bed soil Ways to reduce costs 56.7 percent,the number of trees to reduce the loss of about 94.6%;on the 3,4-year-old Korean pine,red spruce seedlings used Shoji cold wind,with cold-bed soil cover,reduce costs and 69.7 percent,the number of trees to reduce losses About 78...
出处
《林业勘查设计》
2009年第1期82-83,共2页
Forest Investigation Design
关键词
红松
红皮云杉
越冬
在床苗木
Korean pine Red spruce Winter Bed in the nursery stock