1. Assessment of soil nutrient balance: approaches and methodologies
Author: by R.N. Roy...]et al.[
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: ، Soil fertility,Nutrition ، Crops,، Crops and soils
Classification :
S
596
.
7
.
A87
2003


2. Plant Nutrition for Food Security: A Guide for Integrated Nutrient Management
Author: /[by R.N. Roy...[et.al
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject:

3. Plant nutrition for food security
Author: / by R.N. Roy...(et al)
Library: Central Library, Center of Documentation and Supply of Scientific Resources (East Azarbaijan)
Subject: Plants--Nutrition,Food--Quality
Classification :
QK867
.
P543
2007

