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. |
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Creator |
ICAR_CRIDA
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Subject |
Alfisol, constant rate K, forms of K, K-release kinetics, organic manures, step K
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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 |
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Date |
2020-02-25T06:39:06Z
2020-02-25T06:39:06Z 2010 |
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Type |
Technical Report
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/32646 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Srinivasarao, Ch.
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