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Sole- or dualcrop basis residue mulching and zn fertilization lead to improved productivity, rhizo-modulation and soil health in zero- tilled pigeonpea–wheat cropping system.

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Title Sole- or dualcrop basis residue mulching and zn fertilization lead to improved productivity, rhizo-modulation and soil health in zero- tilled pigeonpea–wheat cropping system.
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Creator Kumar, A.
Rana, K. S.
Choudhary, A. K.
Bana, R. S.
Sharma, V. K.
Gupta, G.
Rajpoot, S. K.
Bhupenchandra, I.
Choudhary, M.
Jakhar, P.
Kumar, A.
Kishore, A.
Pradhan, A.
Tyagi, V.
Kumar, K.
 
Subject Crop residue mulching
Carbon stock
Hydrogel
Soil health
System productivity
Zero tillage
Zn solubilizer
 
Description Not Available
Conventional tillage has led to deteriorated soil health in semi-arid ecologies of south Asia. Sole- and dual-crop basis residue mulching in a predominant pigeonpea-wheat cropping system (PWCS) of the region may boost crop productivity and soil health. Widespread Zn defciency also invokes for developing sound Zn fertilization practices (ZFPs) for improved Zn bioavailability and crop productivity. We assessed the comparative performance of single- and double-crop basis residue mulching + hydrogel in main plots, and the ZFPs in sub-plots in split-plot design under a zero-tilled PWCS in semiarid agro-ecology. Dual-crop basis residue mulching + hydrogel exhibited ~ 17.1–22.3% higher system productivity with improved rhizo-modulation and soil health over sole-crop residue mulching and no-residue mulchings in a zero-tilled PWCS. Dual-crop basis residue mulching (8 t ha−1 year−1) + hydrogel (2.5 kg ha−1) maintained signifcantly higher soil organic carbon (4.4 g kg−1); soil organic carbon stock (9.06 t ha−1); nitrogen, phosphorus, potassium and micronutrients; and soil biological parameters compared to sole-crop residue mulching (4 t ha−1 year−1). Interestingly, soil physico-chemical and biological properties and carbon stock showed an improvement while enhancing residue covering from 4 to 8 t ha−1 year−1 compared to no residues. Among ZFPs, 5 kg Zn ha−1 + Zn solubilizer (Bacillus endophyticus) exhibited 7.4–13% higher system productivity and soil health. Correlation analysis exhibited signifcant positive correlation (p < 0.01) amongst system-productivity and soil-health parameters. Double-crop basis residue mulching + hydrogel along with 5 kg Zn ha−1 + Zn solubilizer improved the soil health with optimized root development and hence harnessed higher system productivity in PWCS. Likewise, pigeonpea residue mulching proved more benefcial than wheat residue mulching in succeeding crops in realizing higher system productivity and soil health, where otherwise livestock inevitably need crop residues as quality fodder in semi-arid agro-ecologies.
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Date 2024-04-30T11:45:08Z
2024-04-30T11:45:08Z
2022-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/82456
 
Language English
 
Relation Not Available;
 
Publisher Journal of Soil Science and Plant Nutrition