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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.