Nitrogen Uptake Efficiency and Total Soil Nitrogen Accumulation in Long-Term Beef Manure and Inorganic Fertilizer Application

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dc.contributor.authorOmara, Peter
dc.contributor.authorAula, Lawrence
dc.contributor.authorRaun, William R.
dc.date.accessioned2022-12-12T18:58:55Z
dc.date.available2022-12-12T18:58:55Z
dc.date.issued2019
dc.description.abstractLivestock manure is a common soil amendment for crop-livestock production systems. However, the efficiency of crop nitrogen (N) uptake from the manure-amended soil may not equate with that from inorganic N sources. +e objective of this paper was to determine the efficiency of N uptake, grain yield, and total soil nitrogen (TSN) accumulation in beef manure-amended soil compared to the inorganic N fertilizer-amended soil. Data (1990–2015) from a long-term continuous winter wheat (Triticum aestivum L.) fertility experiment at Stillwater in Oklahoma, USA, were used in this report. +ree of the six “Magruder Plot” treatments used in this study were manure, NPK plus lime (NPKL), and a check (no nutrients applied). Pre-plant N, P, and K were applied annually at 67, 14.6, and 27.8 kg·ha−1, respectively, while beef manure was applied every 4 years at 269 kgN·ha−1. +e results indicated that grain N uptake in the manure treatment (48.1 kg·ha−1) was significantly (p < 0.05) lower than that in the NPKL treatment (60.2 kg·ha−1). +is represents 20.1% efficiency of inorganic N uptake than the manure N uptake. +e average grain yield (1990–2015) from the manure and NPKL treatments was 2265.7 and 2510.5 kg·ha−1, respectively, and was not significantly different. +ere was a trend of TSN increase over the study period for both manure and NPKL treatments. +e average TSN from manure and NPKL treatments was 0.92 and 0.91 g·kg−1 soil, respectively, and was not significantly different. While no significant difference between manure and NPKL grain yield was observed, there was a significantly lower uptake efficiency of manure Ncompared to inorganic N. Furthermore, the low uptake efficiency of the manure Ncould suggest a potential for environmental pollution. Appropriate timing and application rate of manure N sources could optimize crop use efficiency and limit potential threat to the environment.en_US
dc.identifier.citationOmara, P., Aula, L., & Raun, W. R. (2019). Nitrogen uptake efficiency and total soil nitrogen accumulation in long-term beef manure and inorganic fertilizer application. International Journal of Agronomy, 2019. https://doi.org/10.1155/2019/9594369en_US
dc.identifier.urihttps://doi.org/10.1155/2019/9594369
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/6219
dc.language.isoenen_US
dc.publisherInternational Journal of Agronomyen_US
dc.subjectNitrogenen_US
dc.subjectSoil Nitrogen Accumulationen_US
dc.subjectBeef Manureen_US
dc.subjectInorganic Fertilizer Applicationen_US
dc.titleNitrogen Uptake Efficiency and Total Soil Nitrogen Accumulation in Long-Term Beef Manure and Inorganic Fertilizer Applicationen_US
dc.typeArticleen_US
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