1. A handbook of Soil, fertilizer and Manure
Author: Gupta, P.K
Library: Library and Documentation Center of Kurdistan University (Kurdistan)
Subject: ، Fertilizers,، Fertilizers- West )U.S.(,، Soil management- West )U.S.(,، Crops- Nutrition
Classification :
QH
84
.
8
.
G88
2. California Fertilizer Association.Soil Improvement Committee.,Western fertilizer handbook
Author: produced by Soil Improvement Committee, California Fertilizer Association
Library: Central Library and Information Center of Shahed University (Tehran)
Subject: Fertilizers,Fertilizers West (U.S.),Soil management West (U.S.),Crops -- Nutrition
Classification :
S
،
633
،.
C26
،
1980
