基肥施用对杨树幼林生长的影响

Effect of Fertilizer on Growth of Young Forests of Poplar

通过对杨树幼林施用基肥的试验,结果表明:杨树栽植初期,施用基肥对林木胸径初期生长和后续生长影响明显,可使胸径生长量提高0.6 cm;施用基肥对林木材积生长有显著影响,施用基肥后单株材积是对照的2.2倍;施用基肥处理,对病虫害有较强的抵抗能力,使杨树林分获得较高的经济效益。

Through experiments of basal-dressing application on young forests of poplar, the results show that basal-dressing application has significant effect on the early and following growth DBH of trees and can increase the mean growth increment of DBH by 0.6 cm. Basal-dressing application has significant effect on volume growth of trees. Individual volume is 2.2 times than CK after fertilization, Basal-dressing application has stronger resistance on diseases and insect pests, Higher output and economic benefit are got.