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Open AccessArticle

Enhanced Agronomic Efficiency Using a New Controlled-Released, Polymeric-Coated Nitrogen Fertilizer in Rice

1
Institute for Plant Molecular and Cell Biology (UPV-CSIC), Universitat Politècnica de València, 46022 Valencia, Spain
2
Fertinagro Biotech S.L., Polígono de la Paz, C/ Berlín s/n, 44195 Teruel, Spain
3
Centre for Soil and Applied Biology Science of Segura (CEBAS-CSIC), Espinardo University Campus, 30100 Murcia, Spain
4
Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
5
Plant Production Department, School of Agricultural Engineering and Environment, Universitat Politècnica de València, 46022 Valencia, Spain
6
Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, 46022 Valencia, Spain
*
Author to whom correspondence should be addressed.
Plants 2020, 9(9), 1183; https://doi.org/10.3390/plants9091183
Received: 19 July 2020 / Revised: 8 September 2020 / Accepted: 9 September 2020 / Published: 11 September 2020
Fertilizer-use efficiency is one of the most critical concerns in rice cultivation to reduce N losses, increase yields, and improve crop management. The effects of a new polymeric-coated controlled-release fertilizer (CRF) were compared to those of other slow-release and traditional fertilizers in a microscale experiment, which was carried out in cuvettes under partly controlled ambient conditions, and a large-scale field experiment. To evaluate the fertilizer’s efficiency, nitrogen and water-use efficiency were calculated using the measurement of different photosynthetic and crop yield parameters. Improved responses regarding some of the analyzed physiological and growth parameters were observed for those plants fertilized with the new CRF. In the microscale experiment, significantly increased yields (ca. 35%) were produced in the plants treated with CRF as compared to traditional fertilizer. These results were in accordance with ca. 24% significant increased levels of N in leaves of CRF-treated plants, besides increased P, Fe, Mn, and cytokinin contents. At the field scale, similar yields were obtained with the slow-release or traditional fertilizers and CRF at a 20% reduced N dose. The new controlled-release fertilizer is a urea-based fertilizer coated with lignosulfonates, which is cheaply produced from the waste of pulp and wood industries, containing humic acids as biostimulants. In conclusion, CRF is recommended to facilitate rice crop management and to reduce contamination, as it can be formulated with lower N doses and because it is ecological manufacturing. View Full-Text
Keywords: controlled-release fertilizer; humic acid; lignosulfonate; natural polymers; Oryza sativa controlled-release fertilizer; humic acid; lignosulfonate; natural polymers; Oryza sativa
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MDPI and ACS Style

Gil-Ortiz, R.; Naranjo, M.Á.; Ruiz-Navarro, A.; Atares, S.; García, C.; Zotarelli, L.; San Bautista, A.; Vicente, O. Enhanced Agronomic Efficiency Using a New Controlled-Released, Polymeric-Coated Nitrogen Fertilizer in Rice. Plants 2020, 9, 1183. https://doi.org/10.3390/plants9091183

AMA Style

Gil-Ortiz R, Naranjo MÁ, Ruiz-Navarro A, Atares S, García C, Zotarelli L, San Bautista A, Vicente O. Enhanced Agronomic Efficiency Using a New Controlled-Released, Polymeric-Coated Nitrogen Fertilizer in Rice. Plants. 2020; 9(9):1183. https://doi.org/10.3390/plants9091183

Chicago/Turabian Style

Gil-Ortiz, Ricardo; Naranjo, Miguel Á.; Ruiz-Navarro, Antonio; Atares, Sergio; García, Carlos; Zotarelli, Lincoln; San Bautista, Alberto; Vicente, Oscar. 2020. "Enhanced Agronomic Efficiency Using a New Controlled-Released, Polymeric-Coated Nitrogen Fertilizer in Rice" Plants 9, no. 9: 1183. https://doi.org/10.3390/plants9091183

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