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Effect of Timing and Rate of Nitrogen Fertilization on Phenological Development, Leaf Petiole Nitrate-nitrogen Concentration, Seed Yield, and Seed Quality of Carrot (Daucus Carota L.)

James Leslie Balzer

出版	California State University, Fresno, 1990
URL	http://books.google.com.hk/books?id=OOiHNwAACAAJ&hl=&source=gbs_api