摘要
对杨树丰产林进行了施肥试验,结果表明:施肥(二氨)对小黑杨的高生长无显著影响,对小黑杨的胸径生长量有显著影响,可以使小黑杨胸径生长量增加87.4%,每株施1.5 kg二氨经济效益较为显著。
Fertilizer tests of high-yielding plantation of poplar were conducted. The results showed that fertilization （dianamine） had little significant effect on height growth of Populus simonii × nigra and had significant effect on DBH of Populus simonii × nigra. The growth increment of DBH of Populus simonii × nigra could increase 87.4%. The economic benefit is significant while fertilizing 1.5 kg with diammine per tree.
出处
《防护林科技》
2006年第3期15-16,共2页
Protection Forest Science and Technology
关键词
小黑扬
丰产林
施肥
试验
Popldus simonii × nigra
high-yielding plantation
fertilizing
test
