Graham’s Colorimetry as an estimate of Soil Organic Carbon in Chitwan Valley Soils, Nepal / R Ghimire    

Public ISBD in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad     Title : Graham’s Colorimetry as an estimate of Soil Organic Carbon in Chitwan Valley Soils, Nepal Material Type: printed text Authors: R Ghimire, Author ; S.C Shah, Author ; K.R Dahal, Author ; J.G Lauren, Author ; Adhikari, C., Author Pagination: 405-409 p. Languages : English (eng) Keywords: Colorimetric  method,  dry  combustion,  soil  organic  matters,  texture Abstract: Soil organic carbon (SOC) influences soil physical and chemical processes, and serves as repository source of plant nutrients. Limited information is available concerning SOC status of different layers in Nepalese soils. Two hundred soil samples from five different soil depths (0-5, 5-10, 10-15, 15-30 and 30-50 cm) of Rampur and Baireni, were analyzed to evaluate the precision of Graham’s colorimetric method of SOC analysis. The SOC values obtained from Graham’s colorimetric method were compared with dry combustion SOC values for the same soil samples……………… Link for e-copy: http://elibrary.narc.gov.np/?r=1562 in Agricultural research for poverty alleviation and livelihood enhancement. Proceedings of the 3rd SAS-N Convention 27-29 August 2008, Lalitpur / Paudyal, Krishna Prasad     Graham’s Colorimetry as an estimate of Soil Organic Carbon in Chitwan Valley Soils, Nepal [printed text] / R Ghimire, Author ; S.C Shah, Author ; K.R Dahal, Author ; J.G Lauren, Author ; Adhikari, C., Author . - [s.d.] . - 405-409 p. Languages : English (eng) Keywords: Colorimetric  method,  dry  combustion,  soil  organic  matters,  texture Abstract: Soil organic carbon (SOC) influences soil physical and chemical processes, and serves as repository source of plant nutrients. Limited information is available concerning SOC status of different layers in Nepalese soils. Two hundred soil samples from five different soil depths (0-5, 5-10, 10-15, 15-30 and 30-50 cm) of Rampur and Baireni, were analyzed to evaluate the precision of Graham’s colorimetric method of SOC analysis. The SOC values obtained from Graham’s colorimetric method were compared with dry combustion SOC values for the same soil samples……………… Link for e-copy: http://elibrary.narc.gov.np/?r=1562

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Performance of permanent bed planting under rice -wheat - mungbean cropping system / G Sah    

Public ISBD in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.     Title : Performance of permanent bed planting under rice -wheat - mungbean cropping system Material Type: printed text Authors: G Sah, Author ; M.K.L Karn, Author ; D. Chaudhary, Author ; J.G Lauren, Author ; Duxbury J.M, Author ; S Justice, Author Pagination: 245-253 p. Languages : English (eng) Keywords: Permanent  Bed,  Cropping  System,  Mulch Abstract: Permanent raised bed cultivation for rice-wheat cropping system in Nepal  is  a paradigm shift from the conventional practice of planting on puddled flat land. Permanent beds offer the opportunity to reduce tillage, rebuild soil aggregates and organic matter, reduce irrigation water, and improve nitrogen (N) use. The experiment was initiated during winter season, 2000 and is continued till the date at the Agricultural Implement Research Centre, Birgunj, under split plot design: main plot as field configuration and sub-plot as mulching, with four replications. Since 2002/03, the experiment consists with four treatments e.g. fl.at (T1), flat + mulch (T2), bed (T3), and bed + mulch (T4). Rice and wheat straw were used at the rate of 4 tons/ha in each crop season.................... Link for e-copy: http://elibrary.narc.gov.np/?r=1850 in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.     Performance of permanent bed planting under rice -wheat - mungbean cropping system [printed text] / G Sah, Author ; M.K.L Karn, Author ; D. Chaudhary, Author ; J.G Lauren, Author ; Duxbury J.M, Author ; S Justice, Author . - [s.d.] . - 245-253 p. Languages : English (eng) Keywords: Permanent  Bed,  Cropping  System,  Mulch Abstract: Permanent raised bed cultivation for rice-wheat cropping system in Nepal  is  a paradigm shift from the conventional practice of planting on puddled flat land. Permanent beds offer the opportunity to reduce tillage, rebuild soil aggregates and organic matter, reduce irrigation water, and improve nitrogen (N) use. The experiment was initiated during winter season, 2000 and is continued till the date at the Agricultural Implement Research Centre, Birgunj, under split plot design: main plot as field configuration and sub-plot as mulching, with four replications. Since 2002/03, the experiment consists with four treatments e.g. fl.at (T1), flat + mulch (T2), bed (T3), and bed + mulch (T4). Rice and wheat straw were used at the rate of 4 tons/ha in each crop season.................... Link for e-copy: http://elibrary.narc.gov.np/?r=1850

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