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Evidence for magnesium-phosphorus synergism and co-limitation of grain yield in wheat agriculture

Weih, Martin and Liu, Hui and Colombi, Tino and Keller, Thomas and Jäck, Ortrud and Vallenback, Pernilla and Westerbergh, Anna (2021). Evidence for magnesium-phosphorus synergism and co-limitation of grain yield in wheat agriculture. Scientific Reports. 11 , 9012
[Research article]

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Abstract

Modern crop production is characterized by high nitrogen (N) application rates, which can influence the co-limitation of harvested yield by other nutrients. Using a multidimensional niche volume concept and scaling exponents frequently applied in plant ecological research, we report that increased N and phosphorus (P) uptake in a growing wheat crop along with enhanced grain biomass is associated with more than proportional increase of other nutrients. Furthermore, N conversion efficiency and grain yield are strongly affected by the magnesium (Mg) to P ratio in the growing crop. We analyzed a field trial in Central Sweden including nine wheat varieties grown during two years with contrasting weather, and found evidence for Mg co-limitation at lower grain yields and P co-limitation at higher yields. We argue that critical concentrations of single nutrients, which are often applied in agronomy, should be replaced by nutrient ratios. In addition, links between plant P and Mg contents and root traits were found; high root number enhanced the P:N ratio, whilst steep root angle, indicating deep roots, increased the Mg:N ratio. The results have significant implications on the management and breeding targets of agriculturally grown wheat, which is one of the most important food crops worldwide.

Authors/Creators:Weih, Martin and Liu, Hui and Colombi, Tino and Keller, Thomas and Jäck, Ortrud and Vallenback, Pernilla and Westerbergh, Anna
Title:Evidence for magnesium-phosphorus synergism and co-limitation of grain yield in wheat agriculture
Series Name/Journal:Scientific Reports
Year of publishing :2021
Volume:11
Article number:9012
Number of Pages:13
Publisher:NATURE RESEARCH
ISSN:2045-2322
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
URN:NBN:urn:nbn:se:slu:epsilon-p-112141
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112141
Additional ID:
Type of IDID
DOI10.1038/s41598-021-88588-8
Web of Science (WoS)000647133000004
ID Code:24423
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment

(NL, NJ) > Dept. of Plant Biology and Forest Genetics (until 131231)
Deposited By: SLUpub Connector
Deposited On:08 Jun 2021 11:43
Metadata Last Modified:08 Jun 2021 11:51

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