Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis
Najmuddin, Omaid1,2,3; Rasul, Golam1; Hussain, Abid1; Molden, David1; Wahid, Shahriar1,4; Debnath, Bijan1
Source PublicationWATER
Corresponding AuthorNajmuddin, Omaid(omaid_najmuddin@yahoo.com)
AbstractRice is the most important crop for food security and livelihoods of the rural population in Bihar, India. In spite of good soil and water resources, rice water productivity (WP) is very low in Bihar. Trends in WP and key factors influencing WP over 20 years (1991-2010) in 11 Bihar districts were analysed using panel data to help elucidate reasons for low WP values. The annual average rice yield of 938 kg/ha, WP of 0.22 kg/m(3), and marginal physical productivity (MPP) of 249 g/m(3) are very low in Bihar compared to both the national average for India and other rice growing areas in the world. Rice WP and MPP were higher for the garma (dry) season than for the kharif (monsoon) season. Temporal analysis showed that WP was slowly declining in most districts, while spatial analysis showed a significant variation in WP across the districts. Regression analysis showed that the availability of irrigation facilities, occurrence of flood and drought, and cropping intensity had significant influence on rice WP. Causes for temporal and spatial changes in WP are highlighted and actions to improve rice WP in Bihar are suggested.
Keywordwater productivity marginal physical productivity spatiotemporal perspective Koshi River basin Bihar India
Indexed BySCI
Funding ProjectDepartment of Foreign Affairs and Trade (DFAT) of Australia
Funding OrganizationDepartment of Foreign Affairs and Trade (DFAT) of Australia
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000448462700116
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorNajmuddin, Omaid
Affiliation1.Int Ctr Integrated Mt Dev ICIMOD, Lalitpur 44700, Nepal
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.CSIRO, Canberra, ACT 2601, Australia
Recommended Citation
GB/T 7714
Najmuddin, Omaid,Rasul, Golam,Hussain, Abid,et al. Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis[J]. WATER,2018,10(8):17.
APA Najmuddin, Omaid,Rasul, Golam,Hussain, Abid,Molden, David,Wahid, Shahriar,&Debnath, Bijan.(2018).Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis.WATER,10(8),17.
MLA Najmuddin, Omaid,et al."Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis".WATER 10.8(2018):17.
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