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Weed and Vegetation Management in Christmas Trees

Ronald Edward Peachey

出版	Oregon State University Extension Service, 2011
URL	http://books.google.com.hk/books?id=y4GCMwEACAAJ&hl=&source=gbs_api

註釋

"A good weed management plan is essential to produce high quality, marketable Christmas trees. But, complete control of weeds may not be cost effective and is seldom needed. It's important to strike a balance between reducing weed competition with trees and protecting soil and water."--Page 1.