摘要
1986年开始,在辽宁省建平县国营黑水林场进行了杨树丰产林迫肥试验,目的是明确在当地条件下最佳的肥种配比和适宜的施肥量。
The results of topdressing test in young plantation of Populus chifengensis No.36 were analized in this paper. Conclusion: the appropriate dose of topdressing in young high-yield poplar plantation of P. chifengensis No. 36 is 0.4kg urea (46% N) and 0.5kg superphosphate (14% P2O5) per tree a year. The economic benefit of topdressing with N,P,K indifferent level is also discussed in the paper.
出处
《林业科学研究》
CSCD
北大核心
1992年第1期120-124,共5页
Forest Research
关键词
赤峰36号杨
追肥
效益
杨树
幼林
Populus chifengensis No. 36
topdressing
benefit
