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Macronutrient Transformations And Budgeting In Soils

OAR@ICRISAT

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Relation http://oar.icrisat.org/4476/
 
Title Macronutrient Transformations And Budgeting In Soils
 
Creator Sahrawat, K L
Mohanty, S K
Burford, J R
 
Subject Soil Science
 
Description This review of selected papers discusses the transformations of N, P and K
tbat affect the balanck sbeets of tbese nutrients for Indian soils, and it indi.
cates the gaps in exiriing lnforrualion tbat need to be filled before accurate
nutrient budgets can be prepared. More detailed lnformation is available
for N than for P and K. IDgene ral, upland crops utilize fertilizer N more
efficiently than wetland rice, where gaseous Imses of N may be substantial
The appreciable proportion of fertilizer N tbat remains in ihe soil Is of low
availability to subsequent crops. For all tbree nutrientr, more information
Is needed on loores by leaching and erosion. Additionally, for N, many
more nleasuremeats are needed of gaseous N loaner to provide a better
underatanding of the extent of lowee. The currently available Information
indicates that, for many soils, nutrient inputr do not match removals.
Development of accurate budgets requires nutrient-balance experiments at a
greater number of benchmark sites.
 
Date 1987
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/4476/1/CP_426.pdf
Sahrawat, K L and Mohanty, S K and Burford, J R (1987) Macronutrient Transformations And Budgeting In Soils. In: National Symposium on Macronutrients in Soils and Crops, 21-23 Dec 1987, Ludhiana, Punjab, India.