eprintid: 4587 rev_number: 8 eprint_status: archive userid: 30 dir: disk0/00/00/45/87 datestamp: 2011-12-01 04:07:01 lastmod: 2011-12-01 04:07:01 status_changed: 2011-12-01 04:07:01 type: article metadata_visibility: show contact_email: Library-ICRISAT@CGIAR.ORG item_issues_count: 0 creators_name: Sahrawat, K L icrisatcreators_name: Sahrawat, K L affiliation: ICRISAT(Patancheru) country: India title: Transformations of Surface-applied Urea in Three Soils of Varying pH ispublished: pub subjects: s2.11 subjects: s2.5 full_text_status: restricted abstract: Urea hydrolysis, volatilization of ammonia and nitrification of ammonium were investigated in a Vertisol and two Alfisols. Urea hydrolysis was complete in 1 day and 2 days in the Vertisol (pH 8.35) and one Alfisol (pH 6.20), resp.; in the second Alfisol (pH 4.50), urea hydrolysis was not complete 10 days after urea addition. Volatilization of ammonia was greatest in the Vertisol (14% of added urea-N); in all soils volatilization had peaked by day 2. Nitrification in the soils was positively correlated with pH. The results are discussed. date: 1992 date_type: published publication: Journal of the Indian Sociely of Soii Science volume: 40 number: 2 publisher: Indian Sociely of Soii Science pagerange: 368-370 refereed: TRUE issn: 0019-638X official_url: http://indianjournals.com/ijor.aspx?target=ijor:jisss&volume=40&issue=2&article=031 related_url_url: http://scholar.google.co.in/scholar?hl=en&q=allintitle%3A+%22Transformations+of+Surface-applied+Urea+in+Three+Soils+of+Varying+pH%22&btnG=Search&as_sdt=0%2C5&as_ylo=&as_vis=0 related_url_type: author citation: Sahrawat, K L (1992) Transformations of Surface-applied Urea in Three Soils of Varying pH. Journal of the Indian Sociely of Soii Science, 40 (2). pp. 368-370. ISSN 0019-638X document_url: http://oar.icrisat.org/4587/1/JIndianSocSoilSci_40_368_-_370_1992.pdf