Development and evaluation of a seeding attachment of combine harvester for sowing wheat while harvesting paddy

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dc.contributor.advisorNarang, Mahesh Kumar
dc.contributor.authorParihar, Dilwar Singh
dc.date.accessioned2023-12-12T16:17:27Z
dc.date.available2023-12-12T16:17:27Z
dc.date.issued2023
dc.description.abstractAn intensive paddy-wheat rotation system produces high yields but leaves abundant residue in the fields after harvest, which interferes with sowing operation of the next crop. In the North Western part of IGP (Indo-Gangetic Plains), more than 75% of the paddy is harvested with the combine harvesters. After combine harvesting, usually a considerable amount of loose straw and standing stubble left in the field. For timely sowing of next crop paddy residue burning performed by farmers which is a major environmental problem in many rice-producing regions. The practice not only causes air pollution but also contributes to greenhouse gas emissions and climate change. This residue needs to be managed through incorporation and/or mulching for timely sowing of wheat crop. Presently, straw incorporation or direct sowing of wheat in stubble fields require highly energy-intensive machinery and time to attain desired results. Direct seeding of wheat during paddy harvesting is a promising alternative to mitigate paddy residue burning, but it requires specialized equipment. Therefore, a seeding attachment was developed for combine harvester for sowing wheat simultaneously during harvesting of paddy. In light of this, three different furrow openers (i.e. concave disc, double disc and punch hole) were evaluated at three levels of forward speed and stubble heights. The concave disc type furrow openers has been selected for development of seeding attachment because of good straw handling ability and less choking observed during the field evaluation. Thereafter, the performance of the seeding attachment was carried out while paddy harvesting at three different forward speeds (i.e. 1.5, 2.1 and 2.8 km/h) and stubble heights (i.e. 38, 45 and 52 cm). The dependent parameters for the study were plant emergence per meter length, tillers per meter length, effective tillers per meter length, plant height, panicle length, number of grains per ear head, weight of grains per ear head, grain yield, fuel consumption and field capacity of the seeding attachment. The plant height, panicle length and number of grains per ear head were found non-significant at selected forward speeds and stubble heights. Plant emergence per meter length, tillers per meter length, effective tillers per meter length, field capacity, fuel consumption, and grain yield were found 23.6-31.6, 76.6-80.4, 72.06-75.82, 0.6 ha/h, 14 l/ha, and 4408 kg/ha respectively. The best results were obtained at 2.1 km/h forward speed and 38 cm stubble height. It was found that the seeding attachment improved the utility of combine harvester, reduced energy and time associated in straw management and wheat sowing operations. The current study indicated a significant gain in energy-use efficiency, and a reduction in environmental pollution is possible with developed seeding attachment by avoiding paddy residue burning.
dc.identifier.citationParihar, Dilwar Singh (2023). Development and evaluation of a seeding attachment of combine harvester for sowing wheat while harvesting paddy (Unpublished Ph.D. Dissertation). Punjab Agricultural University, Ludhiana, Punjab, India.
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810202732
dc.keywordsConcave disc
dc.keywordsforward speed
dc.keywordspaddy-wheat system
dc.keywordsseeding attachment
dc.keywordsstraw management
dc.keywordsstubble height
dc.language.isoEnglish
dc.pages113
dc.publisherPunjab Agricultural University
dc.research.problemDevelopment and evaluation of a seeding attachment of combine harvester for sowing wheat while harvesting paddy
dc.subFarm, Machinery and Power
dc.themeDevelopment and evaluation of a seeding attachment of combine harvester for sowing wheat while harvesting paddy
dc.these.typePh.D
dc.titleDevelopment and evaluation of a seeding attachment of combine harvester for sowing wheat while harvesting paddy
dc.typeThesis
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