Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat

Late-season N application through foliar spraying is recognized as an efficient agronomic practice for improving grain quality in common wheat, although the major part of N is still supplied by soil fertilization. This study assessed the impact of various N doses entirely applied by repeated foliar...

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Autores principales:	Manuel Ferrari, Cristian Dal Cortivo, Anna Panozzo, Giuseppe Barion, Giovanna Visioli, Gianluigi Giannelli, Teofilo Vamerali
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ammonium nitrate common wheat foliar fertilization gluten proteins grain yield and quality vegetational indexes Agriculture S
Acceso en línea:	https://doaj.org/article/17a06fdaa710445487a50fd71e4dc1f4
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spelling	oai:doaj.org-article:17a06fdaa710445487a50fd71e4dc1f42021-11-25T16:03:57ZComparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat10.3390/agronomy111121382073-4395https://doaj.org/article/17a06fdaa710445487a50fd71e4dc1f42021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2138https://doaj.org/toc/2073-4395Late-season N application through foliar spraying is recognized as an efficient agronomic practice for improving grain quality in common wheat, although the major part of N is still supplied by soil fertilization. This study assessed the impact of various N doses entirely applied by repeated foliar sprayings on wheat growth, yield and quality, in comparison with conventional soil fertilization management with a recommended dose of 160 kg N ha<sup>−1</sup> as ammonium nitrate (C-M). Doses of 96, 104 and 120 kg N ha<sup>−1</sup> as both UAN (urea-ammonium-nitrate) and urea applied by foliar spraying were evaluated in a 2-year field trial in Northern Italy in a silty loam soil with 1.7% organic matter. Here, it was demonstrated that the canopy greenness was similar in all treatments, with slight grain yield increases by the lowest foliar N dose vs. C-M. The higher N foliar doses mainly improved the grain protein content and both high- and low-molecular-weight glutenin subunits (HMW-GS, LMW-GS), particularly with urea. It is concluded that in our fertile soil, managing N fertilization exclusively through foliar spraying is feasible without compromising grain yield and ameliorating quality at the same time. Improved nutrient use efficiency and beneficial environmental effects are also expected by reducing the nitrogen load on the agricultural fields by 25–40%.Manuel FerrariCristian Dal CortivoAnna PanozzoGiuseppe BarionGiovanna VisioliGianluigi GiannelliTeofilo VameraliMDPI AGarticleammonium nitratecommon wheatfoliar fertilizationgluten proteinsgrain yield and qualityvegetational indexesAgricultureSENAgronomy, Vol 11, Iss 2138, p 2138 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ammonium nitrate common wheat foliar fertilization gluten proteins grain yield and quality vegetational indexes Agriculture S
spellingShingle	ammonium nitrate common wheat foliar fertilization gluten proteins grain yield and quality vegetational indexes Agriculture S Manuel Ferrari Cristian Dal Cortivo Anna Panozzo Giuseppe Barion Giovanna Visioli Gianluigi Giannelli Teofilo Vamerali Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
description	Late-season N application through foliar spraying is recognized as an efficient agronomic practice for improving grain quality in common wheat, although the major part of N is still supplied by soil fertilization. This study assessed the impact of various N doses entirely applied by repeated foliar sprayings on wheat growth, yield and quality, in comparison with conventional soil fertilization management with a recommended dose of 160 kg N ha<sup>−1</sup> as ammonium nitrate (C-M). Doses of 96, 104 and 120 kg N ha<sup>−1</sup> as both UAN (urea-ammonium-nitrate) and urea applied by foliar spraying were evaluated in a 2-year field trial in Northern Italy in a silty loam soil with 1.7% organic matter. Here, it was demonstrated that the canopy greenness was similar in all treatments, with slight grain yield increases by the lowest foliar N dose vs. C-M. The higher N foliar doses mainly improved the grain protein content and both high- and low-molecular-weight glutenin subunits (HMW-GS, LMW-GS), particularly with urea. It is concluded that in our fertile soil, managing N fertilization exclusively through foliar spraying is feasible without compromising grain yield and ameliorating quality at the same time. Improved nutrient use efficiency and beneficial environmental effects are also expected by reducing the nitrogen load on the agricultural fields by 25–40%.
format	article
author	Manuel Ferrari Cristian Dal Cortivo Anna Panozzo Giuseppe Barion Giovanna Visioli Gianluigi Giannelli Teofilo Vamerali
author_facet	Manuel Ferrari Cristian Dal Cortivo Anna Panozzo Giuseppe Barion Giovanna Visioli Gianluigi Giannelli Teofilo Vamerali
author_sort	Manuel Ferrari
title	Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
title_short	Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
title_full	Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
title_fullStr	Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
title_full_unstemmed	Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat
title_sort	comparing soil vs. foliar nitrogen supply of the whole fertilizer dose in common wheat
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/17a06fdaa710445487a50fd71e4dc1f4
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Comparing Soil vs. Foliar Nitrogen Supply of the Whole Fertilizer Dose in Common Wheat

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