Nitrogen Forms in Three Kenyan Soils Nitisols, Luvisols and Ferralsols

Simple item page
dc.contributor.authorKarukua, G.N
dc.contributor.authorMochoge, B.O
dc.date.accessioned2023-07-18T07:55:15Z
dc.date.available2023-07-18T07:55:15Z
dc.date.issued2016
dc.descriptionArticleen_US
dc.description.abstractThe nitrogen cycle in soil is an integral part of the overall cycle of N in nature. The primary source of N is the atmosphere where the strongly bonded gas molecule N is predominately gas (78.08%). Total N content in soils ranges from 0.02% in the subsoil and more than 2.5% in peats; ploughed layers of most cultivated soils contain between 0.06 and 0.5%. The amount present in each case is, however determined by climate, type of vegetation, topography, parent material and activities of man. Over 95% of TN in surface soils is organically bound while the portion of non-exchangeable N is high in subsurface soil. Knowledge concerning the nature of organic N in soils is based on studies involving identification and estimation of N forms released by treatment with hot acids. Organic N forms were determined in three soils by acid hydrolysis. The total hydrolysable organic N for the 0-15 and 15-30cm layers were 57.2 and 59.3% for Gituamba andosols; 56.9 and 61.9 for Kitale ferralsols; 39.0 and 42.1% for Katumani luvisols, respectively. Amide N ranged from 11.6 to 21.4% of total N; Hexosamine from 5.2 to 10.1% and Amino acid N from 26.2 to 37.1%. Amino acid N therefore formed the highest portion followed by Amide N of the hydrolysable organic N.en_US
dc.identifier.citationKaruku, G. N., & Mochoge, B. O. (2016). Nitrogen forms in three Kenyan soils Nitisols, Luvisols and Ferralsols. International Journal for Innovation Education and Research, 4(10), 17-30.en_US
dc.identifier.issn2411-2933
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/26282
dc.language.isoenen_US
dc.publisherInternational Educative Research Foundation and Publisheren_US
dc.subjectNitrogen Forms in Three Kenyan Soils Nitisolsen_US
dc.subjectLuvisols and Ferralsolsen_US
dc.titleNitrogen Forms in Three Kenyan Soils Nitisols, Luvisols and Ferralsolsen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Nitrogen Forms in Three Kenyan Soils Nitisols, Luvisols and Ferralsols.pdf
Size:
750.8 KB
Format:
Adobe Portable Document Format
Description:
Full text Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
RP-Department of Agricultural Resources Management (ARM)