Using an uptake enhancer to mitigate nitrogen leaching while enhancing uptake efficiency

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dc.contributor.authorSomi, Zoyolo
dc.contributor.authorKotzé, Elmarie
dc.contributor.authorVan der Watt, Elmarie
dc.date.accessioned2024-07-19T14:13:50Z
dc.date.available2024-07-19T14:13:50Z
dc.date.issued2024
dc.description.abstractNitrogen (N) has the most crucial influence on raising agricultural productivity of all other plant nutrients given to crops. However, 50% of the N given to crops is dissipated to the environment globally, resulting in environmental concerns due to leaching. Current research shows that intensive agricultural production systems, which are still used in a large proportion around the world, are prone to N loss. This study aimed to investigate the effect of uptake enhancer applications on N movement in the soil profile based on 10 cm depth intervals, as well as its effects on N uptake and vegetative growth of oats at 4-week intervals over a 16-week period, using sandy soil as a growing medium. Oats were cultivated in a glasshouse setting in polyvinyl chloride (PVC) columns of 60 cm in height. Six treatments were employed at the 3rd leaf growth stage, and each was replicated four times. The experiment had a constructive and a destructive part, which was employed to monitor crop N uptake at four growth stages. Analyses of soil and plant samples were carried out in all the growth stages. The treatments containing the uptake enhancer prevented N from leaching, particularly at the top 20 cm soil depth, with impressive reductions of 194% at 0–10 cm depth and 186% at 10–20 cm depth, during the first 4 weeks after planting. The uptake enhancer also promoted early vegetative growth and crop performance with 15%. In conclusion, the study revealed that employing the uptake enhancer can improve the efficacy of N fertilizer, thereby reducing the application rate of the fertilizer in agroecosystems.
dc.description.versionPublisher's version
dc.identifier.citationSomi, Z., Kotzé, E., & Van der Watt, E. (2024). Using an uptake enhancer to mitigate nitrogen leaching while enhancing uptake efficiency. Applied Sciences, 14(12), 5271. https://doi.org/10.3390/app14125271
dc.identifier.issn2076-3417 (online)
dc.identifier.urihttps://doi.org/10.3390/app14125271
dc.identifier.urihttp://hdl.handle.net/11660/12698
dc.language.isoen
dc.publisherMDPI
dc.rights.holderAuthor(s)
dc.rights.licensehttps://www.mdpi.com/openaccess
dc.subjectagricultural uptake enhancer
dc.subjectcrop productivity
dc.subjectleaching potential
dc.subjectnitrogen uptake
dc.subjectsoil nutrient retention
dc.titleUsing an uptake enhancer to mitigate nitrogen leaching while enhancing uptake efficiency
dc.typeArticle
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