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Soil-Test-Based Balanced Nutrient Management for Sustainable Intensification and Food Security: Case from Indian Semi-arid Tropics

OAR@ICRISAT

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Relation http://oar.icrisat.org/8632/
http://dx.doi.org/10.1080/00103624.2014.988087
10.1080/00103624.2014.988087
 
Title Soil-Test-Based Balanced Nutrient Management for Sustainable Intensification and Food Security: Case from Indian Semi-arid Tropics
 
Creator Wani, S P
Chander, G
Sahrawat, K L
Pardhasaradhi, G
 
Subject Soil Science
Agriculture-Farming, Production, Technology, Economics
 
Description In the semi-arid tropics (SAT), there exists large yield gaps (two- to four-fold) between current farmers’ yields and achievable yields. Apart from water shortages, soil degradation is responsible for the existing gaps and inefficient utilization of whatever scarce water resource is available. On-farm soil fertility testing across different states in Indian SAT during 2001–2012 showed widespread new deficiencies of sulfur (46–96 percent), boron (56–100 percent), and zinc (18–85 percent) in addition to already known phosphorus (21–74 percent) and nitrogen (11–76 percent, derived from soil carbon). Based on these results, a new fertilizer management strategy was designed to meet varying soil fertility needs at the level of a cluster of villages by applying a full nutrient dose if >50 percent fields were deficient and a half dose in the case of fields
 
Publisher Taylor & Francis
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/8632/1/Paper_Communications%20in%20Soil%20Science%20and%20Plant%20Analysis.pdf
Wani, S P and Chander, G and Sahrawat, K L and Pardhasaradhi, G (2015) Soil-Test-Based Balanced Nutrient Management for Sustainable Intensification and Food Security: Case from Indian Semi-arid Tropics. Communications in Soil Science and Plant Analysis, 46 (1). pp. 20-33. ISSN 1532-2416