Ammonium as sole N source improves grain quality in wheat

Background The skilful handling of N fertilizer, including N source type and its timing, is necessary to obtain maximum profitability in wheat crops in terms of production and quality. Studies on grain yield and quality with ammonium as sole N source have not yet been conducted. The aim of this stud...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the science of food and agriculture 2013-07, Vol.93 (9), p.2162-2171
Main Authors: Fuertes-Mendizábal, Teresa, González-Torralba, Jon, Arregui, Luis M, González-Murua, Carmen, González-Moro, M Begoña, Estavillo, José M
Format: Article
Language:English
Subjects:
Agricultural Irrigation
Agricultural production
Ammonia
ammonia nutrition
Ammonium Sulfate - administration & dosage
Ammonium Sulfate - metabolism
Bread - analysis
Chromatography, High Pressure Liquid
Dietary Proteins - analysis
Dietary Proteins - chemistry
Dietary Proteins - metabolism
Fertilizers
Flour - analysis
Food Quality
Food science
Gliadin - analysis
Gliadin - biosynthesis
gliadins
glutenins
Glutens - analysis
Glutens - biosynthesis
Molecular Weight
Nitrates - metabolism
Nitrogen
Plant Leaves - growth & development
Plant Leaves - metabolism
Plant Stems - growth & development
Plant Stems - metabolism
Potassium Compounds - metabolism
Proteins
Seed Storage Proteins - analysis
Seed Storage Proteins - biosynthesis
Seed Storage Proteins - chemistry
Seeds - chemistry
Seeds - growth & development
Seeds - metabolism
splitting N fertilization
Triticum - chemistry
Triticum - growth & development
Triticum - metabolism
Wheat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Background The skilful handling of N fertilizer, including N source type and its timing, is necessary to obtain maximum profitability in wheat crops in terms of production and quality. Studies on grain yield and quality with ammonium as sole N source have not yet been conducted. The aim of this study was to evaluate the effect of N source management (nitrate vs. ammonium), and splitting it into two or three amendments during the wheat life cycle, on grain yield and quality under irrigated conditions. Results This experiment demonstrates that Cezanne wheat plants growing with ammonium as exclusive N source are able to achieve the same yield as plants growing with nitrate and that individual wheat plants grown in irrigated pots can efficiently use late N applied in GS37. Ammonium nutrition increased both types of grain reserve proteins (gliadins and glutenins) and also increased the ratio gli/glu with respect to nitrate nutrition. The splitting of the N rate enhanced the ammonium effect on grain protein composition. Conclusions The application of ammonium N source, especially when split into three amendments, has an analogous effect on grain protein content and composition to applications at a higher N rate, leading to higher N use efficiency. © 2012 Society of Chemical Industry
ISSN:0022-5142
1097-0010
DOI:10.1002/jsfa.6022