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Effects of soil compaction on grain yield of wheat depend on weather conditions

Liu, Hui and Colombi, Tino and Jäck, Ortrud and Keller, Thomas and Weih, Martin (2021). Effects of soil compaction on grain yield of wheat depend on weather conditions. Science of the Total Environment. 807 , 150763
[Research article]

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Abstract

The use of heavy farm machinery has resulted in widespread soil compaction in many regions of the world. Compacted soil limits the access of crops to soil water and nutrients and is expected to reduce crop productivity, but the influence of weather conditions on the interactions between compacted soil and crop productivity is unclear. Furthermore, early vigor has been regarded as a promising trait for improving the yield of crops grown under edaphic stress such as soil compaction. We aimed to assess the combined effects of soil compaction and contrasting weather conditions on growth and grain yield of spring wheat, and to evaluate the association between early vigor and grain yield under temporal variations of the soil physical conditions. Nine spring wheat genotypes were grown on compacted and non-compacted soils during two cropping seasons with contrasting weather conditions in Central Sweden. Compared to the non-compacted treatment, soil compaction increased the relative growth rate of shoot biomass from sowing to stem elongation, and from stem elongation to flowering in the drier year (2018), but decreased the same traits in the wetter year (2019). The contrasting effects of soil compaction on shoot growth in the two years could be explained by soil moisture and penetration resistance associated with the interactive effects of soil compaction and weather condition. Higher early vigor, here indicated by higher relative growth rate from sowing to stem elongation, was associated with reduced grain yield under the progressively drying and hardening soil conditions during the entire cropping season of both years. We conclude that the interactive effects of soil physical and weather conditions need to be considered when evaluating the impact of soil compaction on crop growth and productivity. The potential of early vigor to increase grain yield is strongly influenced by the temporal dynamics of soil physical conditions.

Authors/Creators:Liu, Hui and Colombi, Tino and Jäck, Ortrud and Keller, Thomas and Weih, Martin
Title:Effects of soil compaction on grain yield of wheat depend on weather conditions
Series Name/Journal:Science of the Total Environment
Year of publishing :2021
Volume:807
Article number:150763
Number of Pages:9
ISSN:0048-9697
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:crop productivity, early vigor, genotype differences, soil compaction, soil-plant interactions, temporal dynamics
URN:NBN:urn:nbn:se:slu:epsilon-p-113992
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113992
Additional ID:
Type of IDID
DOI10.1016/j.scitotenv.2021.150763
ID Code:25848
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
Deposited By: SLUpub Connector
Deposited On:17 Oct 2021 23:25
Metadata Last Modified:18 Oct 2021 05:01

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