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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/32827
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | ICAR_CRIDA | en_US |
dc.date.accessioned | 2020-02-25T08:47:31Z | - |
dc.date.available | 2020-02-25T08:47:31Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/32827 | - |
dc.description | Not Available | en_US |
dc.description.abstract | astor and sunflower, drought‐tolerant crops, are cultivated in the semi‐arid tropics of the world. The nutrient‐rich residues of these crops are mostly burnt because of their high C/N (C/N)‐ratios. These high C/N‐ratio residues can be composted and recycled successfully, if they are supplemented with other low C/N‐ratio farm‐based organics and some chemical additives. To study the rate kinetics and half‐life of decomposition of castor (C/N ratio: 75∶90) and sunflower (C/N ratio 57∶47) residue mixtures and the manure value of the compost thus prepared, two on‐farm experiments were conducted at Hayathnagar Research Farm (17° 18′ N latitude, 78° 36′ E longitude, and an elevation of 515 m above sea level) of Central Research Institute for Dryland Agriculture, Hyderabad, India. The decay rate constants obtained on the basis of the exponential functions using the data on weight loss, C concentration, and C/N ratios indicated that among the four combinations of treatments, castor stalks+gliricidia loppings+cattle dung had the fastest rate of decomposition with an average rate constant value of 0.0043 day−1. To achieve 50% decomposition (half‐life), the time periods computed for castor stalks+gliricidia loppings+cattle dung and sunflower stalks+gliricidia loppings+cattle were 197 and 278 days, respectively. On an average basis, sunflower‐based manure contained a significantly higher amount of total N (14.6 gm kg−1) than castor‐based manures (12.2 gm kg−1). The corresponding total hydrolyzable N values were 8.2 and 8.15 gm kg−1, respectively. Amino acid N was found to be the predominant constituent of the total acid hydrolyzable N in the manure. Use of earthworms in composting enriched the manure in terms of mineral [nitrate (NO3)+ammonium (NH4)‐N] and hexosamine‐N fractions. The full article deals with the decomposition patterns (periodical changes in weight loss, C concentration and C/N ratios), decay‐prediction functions, composting, and manure quality of the castor‐ and sunflower‐based residue mixtures. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Sharma, K.L., Srinivas, K., | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | Residue decomposition, composting of unconventional farm‐based residues, castor and sunflower stalks, N fractions, total N, mineral N, total hydrolyzable N | en_US |
dc.title | Kinetics of decomposition of un-conventional farm-based residues and their composting and quality monitoring | en_US |
dc.title.alternative | Kinetics of decomposition of un-conventional farm-based residues and their composting and quality monitoring | en_US |
dc.type | Technical Report | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Communications in Soil Science and Plant Analysis | en_US |
dc.publication.volumeno | 38(17) | en_US |
dc.publication.pagenumber | 2423-2444. | en_US |
dc.publication.divisionUnit | Not Available | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | ICAR_CRIDA | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 6.77 | en_US |
Appears in Collections: | NRM-CRIDA-Publication |
Files in This Item:
File | Description | Size | Format | |
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40 Kinetics of decomposition of un-conventional farm-based residues and their composting and quality monitoring.pdf | 247.77 kB | Adobe PDF | View/Open |
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