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Residue mulching and foliar application of potassium enhances yield and water productivity of wheat under restricted irrigated conditions in saline soil

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Title Residue mulching and foliar application of potassium enhances yield and water productivity of wheat under restricted irrigated conditions in saline soil
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Creator Not Available
Prajapat, K., Meena, R.P. and Venkatesh, K.
 
Subject Wheat, Saline, Residue, Potassium
 
Description Not Available
Wheat is the second most important crop in India and the world. Among many difficulties faced in the wheat
growing regions, salinity and declining water table and water quality are most affecting factors. This study was
conducted to test the hypothesis that whether the use of rice residue as mulch with reduced amount of irrigation water and foliar application of K could maintain wheat yield under salinity conditions. Ex-situ rice residue mulching @ 4 Mg ha-1 significantly enhanced the tillers m-2 (307.1), grain yield (5.10 Mg ha-1), net returns (INR 80.3×103 ha-1) and water productivity (2.04 kg m-3) over no residue mulching. Residue mulching significantly enhanced grain yield and net returns at all the irrigation levels. Irrigation at all critical stages (ICS) and residue mulching gave significantly maximum grain yield of 5.69 Mg ha-1 and net returns of INR 91.1×103 ha-1. Further, restricting irrigations to CRI+BS+MS stages along with residue retention also resulted in statistically similar wheat grain yield (5.38 Mg ha-1) and Net returns (INR 84.1×103 ha-1) that obtained with ICS without residue retention, showed advantage of residue mulching in saving of irrigation water. Residue mulching significantly improved the water productivity at all irrigation levels. Foliar application of K:N (2% K + Nitrogen 0.5%) significantly improved tillers m-2, grains spike-1 (GPS), grain yield (5.14 Mg ha-1), straw yield (11.29 Mg ha-1), net returns (INR 82.2×103 ha-1), benefit cost ratio (2.32) and water productivity of wheat (2.05 kg m-3) compared to control.
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Date 2021-02-02T05:38:14Z
2021-02-02T05:38:14Z
2020-06-01
 
Type Research Paper
 
Identifier Prajapat, K., Meena, R.P. and Venkatesh, K. 2020. Residue mulching and foliar application of potassium enhances yield and water productivity of wheat under restricted irrigated conditions in saline soil. Journal of Soil Salinity and Water Quality 12(1): 58-64.
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http://krishi.icar.gov.in/jspui/handle/123456789/45193
 
Language English
 
Relation Not Available;
 
Publisher ISSS&WQ