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Effect of water management and polyolefin-coated urea on growth and nitrogen uptake of indica rice

dc.contributor.authorOluwarotimi, O.
dc.contributor.authorFashola, O.O.
dc.contributor.authorHayashi, K.
dc.contributor.authorWakatsuki, T.
dc.date.accessioned2019-12-04T11:30:45Z
dc.date.available2019-12-04T11:30:45Z
dc.date.issued2002
dc.identifier.citationOluwarotimi O. Fashola, O.O., Hayashi, K. & Wakatsuki, T. (2002). Effect of water management and Polyolefin-Coated Urea on growth and Nitrogen uptake of indica rice. Journal of Plant Nutrition, 25(10), 2173–2190.
dc.identifier.issn0190-4167
dc.identifier.urihttps://hdl.handle.net/20.500.12478/5374
dc.description.abstractPoor water management and high nitrogen (N) losses are the key problems faced by rice farmers under rainfed inland valley systems. There is a need to evaluate different N fertilizers so as to identify one that could withstand these problems. The performance of polyolefin-coated urea (POCU) was therefore compared with conventional urea in a pot experiment with indica rice (Oryza sativa L. cv. IR36), using two water management systems: 1) Submerged condition referred to as good water management (GWM), and 2) excessive irrigation (over 4000mm in 120 days) referred to as poor water management (PWM). The study was carried out during 1997 and 1998 cropping seasons under glasshouse conditions. For PWM in 1997, the pots were subjected to leaching only whereas in 1998, they were subjected to both surface runoff and leaching. For both cropping seasons, POCU-treated plants under PWM had a significantly higher grain yield (377.5 and 343.0 gm_2) than urea-treated plants (316.5 and 260.5 gm_2). In addition, POCU-treated plants had a significantly higher number of grains per panicle than ureatreated plants. In 1998, both the partial factor productivity of applied N and the agronomic nitrogen-use efficiency of POCUtreated plants under GWM and PWM were significantly higher than those of urea-treated plants. It can be inferred that (using sandy soils and under PWM), POCU could perform significantly better than conventional urea. This finding is important, considering the usually high nitrogen losses in rice-growing inland valley swamps.
dc.language.isoen
dc.subjectFertilizers
dc.subjectSoil Fertility
dc.subjectRice
dc.subjectJapan
dc.subjectGreenhouses
dc.subjectWater Management
dc.subjectLeaching
dc.subjectGreenhouses
dc.titleEffect of water management and polyolefin-coated urea on growth and nitrogen uptake of indica rice
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationShimane University
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAsia
cg.coverage.regionEast Asia
cg.coverage.countryJapan
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectSoil Fertility
cg.iitasubjectRice
cg.accessibilitystatusLimited Access
local.dspaceid103731
cg.identifier.doihttps://doi.org/10.1081=PLN-120014069


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