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Productivity and economics of transplanted and direct-seeded rice (Oryza sativa) - based cropping systems in Indo-Gangetic Plains

Indian Agricultural Research Journals

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Title Productivity and economics of transplanted and direct-seeded rice (Oryza sativa) - based cropping systems in Indo-Gangetic Plains
 
Creator Gangwar, K S
Tomar, O K
Pandey, D K
 
Subject Direct seeding (dry); Economics; Productivity; Rice equivalent yield; Soil characteristics; Transplanting (puddled)
 
Description A field experiment was conducted during 2003-05 at Modipuram to assess the effect of rice crop establishment methods of rice (0ryza sativa L.) to improve the productivity and profitability of rice-based cropping systems. Direct-seeded hybrid rice yielded (8.20 tonnes/ha) higher than the manually transplanted (7.65 tonnes/ha). The yields of subsequent crops after aerobic rice (Oryza sativa L.)-wheat (Triticum aestivum L. emend. Fiori & Paol.) (5.69 tonnes/ ha), chickpea (Cicer arietinum L.) (2.27 tonnes/ha) and Indian mustard [Brassica juncia (L.) Czernj & Cosson] (1.82 tonnes/ha), which were higher than when taken after transplanted rice with yield of 4.96, 1.63 and 1.42 tonnes/ha for wheat, chickpea and mustard respectively. The system productivity of direct-seeded rice-wheat, direct-seeded rice-chickpea and direct seeded rice-mustard were higher (14.96, 14.48 and 13.41 tonnes/ha respectively) compared with the transplanted rice-based cropping system. The corresponding system productivity (13.53, 12.12 and 11.81 tonnes/ha respectively). Root dry matter was also recovered higher for aerobic rice-based cropping systems compared to that of transplanted rice-based cropping systems. The maximum net retums (Rs 50 405 tonnes/ha) and benefit: cost ratio (1.20 g/30 cm3) was recorded under direct seeded rice than transplanted. After 2 crop cycles, significantly higher infiltration rate (1.32 cm/hr) was recorded under direct seeding (dry bed) conditions while greater values of bulk density (1.49 Mg/cm3), soil organic carbon (0.53%), available P (24.67 kg/ha) and K (172.50 kg/ha) were recorded under mechanical transplanting (puddled). Similarly higher total nutrient uptake (415 kg/ha) was recorded in rice-wheat sequence under mechanical transplanting (puddled).
 
Publisher The Indian Journal of Agricultural Sciences
 
Date 2008-08-05
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/9841
 
Source The Indian Journal of Agricultural Sciences; Vol 78, No 8 (2008)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/9841/4408
 
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