多效抗旱驱鼠剂对落叶松生长的影响

The effect of RPA on larch growth

应用多效抗旱驱鼠剂(RPA)进行蘸浆造林,能有效驱避害鼠对林木的危害,提高苗木抗旱能力。研究表明,应用RPA对落叶松进行蘸浆造林,苗木定植后第1年的净生长量为7.98cm,第2年为17.89cm,分别比对照高出1.81cm和10.16cm;苗木定植2年后,处理区落叶松由鼢鼠引起的死亡率仅为1.0%,而对照区死亡率平均达33.0%;处理区内苗木因干旱引起的死亡率为4.0%,而对照区为20.0%。

It describes the of RPA in Guyuan forestation.The result shows:this method can raises drought resistance and growth rate,and efficiently prevent mice plague.To dip in the thick liquid with RPA,there are 7.98 cm and 17.89 cm of the height increment on Larix sp.in 1st,2nd planted years,and compared with CK,its increased 1.81 cm and 10.16 cm.The death rate by Zokor in 2nd planted year is (1.0%),the death rate by drought is 4.0% after dipped in RPA slurry,but the death rate by Zokor is (33.0%) and the death rate by drought is 20.0% in CK.