Field comparison of traditional and slow releasing nitrogen fertilizers

dc.contributor.author Hammes, Bradley
dc.date 2019-07-10T02:40:36.000
dc.date.accessioned 2020-06-30T08:12:20Z
dc.date.available 2020-06-30T08:12:20Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2006
dc.date.issued 2006-01-01
dc.description.abstract <p>Slow release fertilizers are a possible alternative to traditional fertilizers. With growing environmental concerns slow release fertilizers are a potentially more efficient method of delivering nitrogen (N) fertilization. Slow release fertilizers have been used for high-value crops, but, only recently, new formulations have been produced and are being re-introduced into row crop production. A two-year field trial was conducted to assess the effect of a urea-formaldehyde (Nitamin) slow release fertilizer on grain and biomass yields, and the corresponding amounts of N uptake, in corn in 2004 and 2005. To accomplish this, fertilizer rates of 0, 56, 112, 168, and 224 kg N ha⁻¹ were used of both Nitamin and urea ammonium nitrate (UAN) fertilizer materials. The results obtained showed great variation between the two years of the study. In 2005 there was a significant increase in grain production when Nitamin was used as an N source. There was also a statistically significant increase in N uptake in Nitamin treated plots and a trend toward higher biomass production and N uptake in biomass in urea-formaldehyde treatments. In 2004 grain production was affected by N rate with trends favoring UAN fertilization. When all experimental data were analyzed there was a significant increase in grain production in plots receiving Nitamin fertilizer treatment.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/19009/
dc.identifier.articleid 20009
dc.identifier.contextkey 14541139
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/19009
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/72972
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/19009/Hammes_ISU_2006_H357.pdf|||Fri Jan 14 21:51:32 UTC 2022
dc.subject.keywords Soil Science
dc.title Field comparison of traditional and slow releasing nitrogen fertilizers
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
thesis.degree.discipline Soil Science
thesis.degree.level thesis
thesis.degree.name Master of Science
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