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Effects of Partial Defoliation at Transplanting Time on Subsequent Growth and Yield of Lettuce, Cauliflower, Celery, Peppers, and Onions

Charles Arthur MatthewsClarence Joseph BabcockEarl W. McComasFrancis Eugene ClarkGeoffrey Seddon ShepherdIrvin Cecil BrownJames Ellsworth KrausKenneth Pickett DavisRobert Smith HolmesByron Lester SouthwellJames ThorpRoy Ralph GravesWilliamson Edward HearnJames Russell DouglasWalter Whittier Swett

出版	U.S. Department of Agriculture, 1941
URL	http://books.google.com.hk/books?id=HQL6MAAACAAJ&hl=&source=gbs_api