KRISHI
ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/35474
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ch. Jyotiprava Dash | en_US |
dc.contributor.author | A. Sarangi | en_US |
dc.contributor.author | D. K. Singh | en_US |
dc.contributor.author | A. K. Singh | en_US |
dc.contributor.author | Partha Pratim Adhikary | en_US |
dc.date.accessioned | 2020-05-08T10:47:50Z | - |
dc.date.available | 2020-05-08T10:47:50Z | - |
dc.date.issued | 2014-04-15 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/35474 | - |
dc.description | Not Available | en_US |
dc.description.abstract | In irrigated semi-arid regions, knowledge of groundwater recharge and nitrate leaching is essential for sustainable management of water resources. In this study, the potential recharge and nitrate leaching below the root zone of rice crop were estimated using a root zone modelling approach through simulation with HYDRUS-1D model. The field data collected for a single season were used for calibrating the model and validated for the next season. The simulated results, when compared with the measured soil water and nitrate contents at different soil depths showed good agreement between the HYDRUS-1D simulation and field data. The validated results indicated that 55.5 % of the applied water percolated below the root zone. Nitrogen balance within 120 cm deep soil profile indicated that volatilization, denitrification, plant uptake and leaching losses were 24.0, 18.9, 109.0 and 28.5 kg N ha-1, respectively. The magnitude of nitrate leaching was 23.7 % of added fertilizer. Different nitrate leaching scenarios were generated using different fertilizer application rates exceeding the optimal dose. These scenarios showed an increasing trend with increase of fertilizer rates, fitted with a second-order polynomial equation (R2 = 0.99). The equation can be used for estimation of nitrate leaching below root zone under different fertilizer input scenarios of rice grown in similar hydroagro- climatic regions. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Not Available | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | _ Nitrate leaching _ Groundwater _ HYDRUS-1D _ Fertilizer use scenario | en_US |
dc.title | Prediction of root zone water and nitrogen balance in an irrigated rice field using a simulation model | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Research Paper | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Paddy and Water Environment | en_US |
dc.publication.pagenumber | Not Available | en_US |
dc.publication.divisionUnit | Not Available | en_US |
dc.publication.sourceUrl | 10.1007/s10333-014-0439-x | en_US |
dc.publication.authorAffiliation | ICAR::Indian Institute of Soil and Water Conservation | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 7.26 | en_US |
Appears in Collections: | NRM-IISWC-Publication |
Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.