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Twenty years of continuous cropping, fertilization and organic manure application effects on forms of potassium and kinetics of nonexchangeable K release in the profile of an Alfisol under arid conditions.

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Title Twenty years of continuous cropping, fertilization and organic manure application effects on forms of potassium and kinetics of nonexchangeable K release in the profile of an Alfisol under arid conditions.
Twenty years of continuous cropping, fertilization and organic manure application effects on forms of potassium and kinetics of nonexchangeable K release in the profile of an Alfisol under arid conditions.
 
Creator ICAR_CRIDA
 
Subject Alfisol, constant rate K, forms of K, K-release kinetics, organic manures, step K
 
Description Not Available
Effects of continuous cropping and addition of organic manures (farmyard manure,
FYM, and groundnut shells, GNS) along with inorganic fertilizers on nonexchangeable
potassium (K) release kinetics in a K-deficient Alfisol were studied in a 20-year manurial
experiment under arid conditions. There was a depletion in available K under continuous
cropping without K input (control) as compared to other treatments such as 100%
nitrogen–phosphorus–potassium (NPK), 50% NPK + 4 metric tons (MT) groundnut
shells ha-1, 50% NPK + 4 MT FYM ha-1, and 100% organic (i.e., 5 MT FYM ha-1). Over
20 years of cropping without K input, available K was reduced from 155 kg ha-1 (in 1985) to
82 kg ha-1 (in 2005), showing a negative balance of 73 kg ha-1. Soil in control plots
showed available K in the deficient range (
Not Available
 
Date 2020-02-25T06:39:06Z
2020-02-25T06:39:06Z
2010
 
Type Technical Report
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/32646
 
Language English
 
Relation Not Available;
 
Publisher Srinivasarao, Ch.