Effect of irrigation scheduling and tillage for rice residue management on productivity and water use of wheat

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dc.contributor.advisorSingh, K.B.
dc.contributor.authorMalkit Singh
dc.date.accessioned2019-11-16T05:53:39Z
dc.date.available2019-11-16T05:53:39Z
dc.date.issued2019
dc.description.abstractThe present study was conducted with three irrigation regimes based on irrigation water/open pan evaporation (IW/PAN-E) (0.6 (I1), (I2) 0.8 and 1.0 (I3)) and four tillage treatments for paddy residue management primary tillage with mouldboard plough to a depth of 25 cm (PTF+R) followed by rotavator, primary tillage with mouldboard plough to a depth of 14 cm (PTH+R) followed by rotavator, wheat sown with happy seeder in rice stubbles (NT) and secondary tillage with two discing and cultivator (CT) before sowing wheat to observe the effect of irrigation scheduling and tillage for residue management on water use and productivity of wheat for the two years (2016-17 and 2017-18). Both the soil bulk density and mean weight diameter were significantly higher in NT over PTF+R. The saturated hydraulic conductivity was significantly higher in PTF+R by 72.5% and 81.7% as compared to NT in 0- 7.5 and 7.5-15 cm soil layers respectively. Among tillage for residue management practices, the significantly higher grain yield was observed in PTF+R by 16.3% and 18.2% as compared to NT during 2016-17 and 2017-18 respectively. Significantly higher grain yield was observed in I3 by 39.5% and 37.5% as compared to I1 during 2016-17 and 2017-18 respectively. Grain yield was significantly higher under PTF+R during 2016-17 and 2017-18. The soil water retention and soil organic carbon content were significantly higher under NT as compared to PTH+R and CT. Leaf area index was significantly higher in PTF+R (by 56.8 %) as compared CT. Root length density was significantly higher by 89% in PTF+R as compared to NT. ET losses were higher under I3 than I1. PTF+R was observed to be better with respect to improvement in soil physical properties and water use in wheat.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810135481
dc.keywordsResidue management tillage, irrigation, water productivity of wheat, soil physical properties, soil water balanceen_US
dc.language.isoenen_US
dc.pages67en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemEffect of irrigation scheduling and tillage for rice residue management on productivity and water use of wheaten_US
dc.subSoil Scienceen_US
dc.themeEffect of irrigation scheduling and tillage for rice residue management on productivity and water use of wheaten_US
dc.these.typeM.Scen_US
dc.titleEffect of irrigation scheduling and tillage for rice residue management on productivity and water use of wheaten_US
dc.typeThesisen_US
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