摘要
赤峰市松山区老府林场的一年生油松播种苗越冬时 ,历年都是采取覆土防寒的方法。 1 999年 1 0月苗木越冬前、翌春两次向苗木地上部分喷射不同浓度的自备药物越冬保苗 ,预期达到出圃标准 ,每公顷节省苗木防寒费 45 0元 ,苗木死亡率、损伤率分别降低 3 %、2 %。
In the past, the method of winter protection by covering soil was adopted for hibernation of annual seedling of Pinus tabulaeformis Carr.in Laofu Forest Farm. In October, 1999, medicinal provided by ourselves in different concentrate were sprayed to aerial part of seedling to hibernate before hibernation and next spring. The expected standard has been gained, with saving the cost of winter protection for 450 yuan/hm 2 and decreasing mortality rate and impairing rate by 3% and 2% separately.
出处
《内蒙古林业科技》
2002年第1期14-15,共2页
Journal of Inner Mongolia Forestry Science and Technology
关键词
一年生油松
播种苗
油松苗
药物防寒
试验
annual seedling of Pinus tabulaeformis Carr.
winter protection with medicinal
test
