1. SOIL FERTILITY AND FERTILIZERS: AN INTRODUCTION TO NUTRIENT MANAGMENT
Author:
Library: Library of Faculty of Geography of Tehran University (Tehran)
Subject: FERTILIZER,SOIL FERTILITY,CROPS_NUTRITION
Classification :
S633
.
S715
1999
2. soil fertility evaluation and control
Author: Charles Allen Black
Library: Vali Asr University Central Library (Kerman)
Subject: soil fertility,fertilizer
Classification :
S
596
.
7
.
B545
1992
