Developing water and energy smart portfolios for sustainable cereal based systems under conservation agriculture practices in North-West Indo-Gangetic plains

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dc.contributor.advisorSaini, K. S.
dc.contributor.authorRolaniya, Lalit Kumar
dc.date.accessioned2019-12-14T04:20:16Z
dc.date.available2019-12-14T04:20:16Z
dc.date.issued2019
dc.description.abstractThe present investigation entitled “Developing water and energy smart portfolios for sustainable cereal based systems under conservation agriculture practices in North-West Indo- Gangetic plains” was carried out at Borlaug Institute for South Asia (BISA), Ladhowal, Ludhiana. The experiment was established during rabi 2015 but the actual treatments were imposed in kharif 2016 considering rabi season a zero cycle ensuring tillage, crop establishment and residue management effects are captured in first test crop. Six management scenarios involving layering of cropping systems, tillage energy source for irrigation and irrigation management were evaluated in large plot size (400 m2; 20m x 20m) in a randomized complete block design with four replications. All the other standard management practices were used irrespective of the management scenarios. The results reveled that conservation agriculture based rice-wheat layered with sub-surface drip irrigation system (RWZT-SSD) resulted similar yields as of rice-wheat conventional till system, but with saving of nearly 47.28 per cent (110 cm) applied irrigation water, 18.3 per cent cost reduction and `18,760 ha-1 year-1 additional profit compared to farmers practice. In maize-wheat cropping system on permanent raised bed (PB) layered with sub-surface drip irrigation (SSD), a gain of maize- wheat system grain yield to the tune of ~5.3 q ha-1 year-1 with 53.4 per cent less irrigation water application as compared to conventional tillage based flood irrigation system. Maize-wheat system with conservation agriculture based management layered with SSD produced 9.7 per cent higher system productivity (12.93 t ha-1 year-1), `34,260 ha-1 year-1 additional profits. By switching from conventional ricewheat system towards PB-SSD based maize-wheat system save 70.2 per cent electric energy showing potentiality of diversification of rice-wheat system through sustainable intensification of MW system. Using solar energy for pumping of ground water linked with sub surface drip irrigation system have a potential to mitigate the 3971 kg of CO2 eq ha-1 year-1 and 1655 kg of CO2 eq ha-1 year-1 in rice-wheat and maize-wheat cropping system, respectively. Layering improved management practices offer opportunities to address the issues of crop adaptability, productivity and profitability in rice-wheat and maize-wheat rotation under the emerging climate risks while improving the natural resources (water, energy and soil) and reducing environmental footprints, rather than their application in isolation.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810137678
dc.keywordsConservation agriculture, Sub-surface drip irrigation, Water productivity, Permanent bed and Solar tubewellen_US
dc.language.isoenen_US
dc.pages131en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemDeveloping water and energy smart portfolios for sustainable cereal based systems under conservation agriculture practices in North-West Indo-Gangetic plainsen_US
dc.subAgronomyen_US
dc.subjectnullen_US
dc.themeDeveloping water and energy smart portfolios for sustainable cereal based systems under conservation agriculture practices in North-West Indo-Gangetic plainsen_US
dc.these.typePh.Den_US
dc.titleDeveloping water and energy smart portfolios for sustainable cereal based systems under conservation agriculture practices in North-West Indo-Gangetic plainsen_US
dc.typeThesisen_US
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