Investigating the effect of inoculation of chickpea with rhizobium and mycorrhizal fungi (Funneliformis mosseae) on soil mechanical and physical behavior

A - Papers appearing in refereed journals

Heydari, L., Bayat, H. and Gregory, A. S. 2021. Investigating the effect of inoculation of chickpea with rhizobium and mycorrhizal fungi (Funneliformis mosseae) on soil mechanical and physical behavior. Geoderma. 385, p. 114860. https://doi.org/10.1016/j.geoderma.2020.114860

AuthorsHeydari, L., Bayat, H. and Gregory, A. S.
Abstract

Symbiosis with plants by mycorrhiza and rhizobium (bio-fertilizers) is effective in improving soil structure and increasing the stability of aggregates against compression. In addition to soil deformation, soil structural properties should be included for the assessment of compaction. The purpose of this study was to investigate the effect of application of rhizobium and mycorrhizae on plant yield, some soil physical properties, and the confined compression curve and its characteristics, which have not been reported in any research so far. Experiments were conducted in a completely randomized design with three replications in the field and glasshouse. Mycorrhizal fungi (Funneliformis mosseae), rhizobium (Mesorhizobium), mycorrhiza - rhizobium and control (no inoculation) were the treatments of the field experiment. Sterilized mycorrhiza background material and non-plant-non-inoculation were the two additional treatments of the glasshouse experiment. The plant cultivated in this experiment was chickpea. Mycorrhizal and rhizobium treatments increased the stability of aggregates compared to non-plant-non-inoculation treatment. Mycorrhiza and rhizobium increased the macroporosity and near-saturation water content. The smallest total yield was found in the sterilized mycorrhiza background material and control treatments. Mycorrhiza and rhizobium increased the void ratio at different compression stresses by 9–16% and 19–25%, respectively, compared to non-inoculation treatments under the glasshouse experiment. Pre-compression stress was increased by 84.3% in the control treatment with plant compared to the mycorrhiza treatment in the glasshouse experiment, but did not change significantly in the field experiment. Symbiosis of mycorrhiza and rhizobium as a sustainable biological method improved the physical and mechanical properties of the soil by affecting plant yield and root exudates.

KeywordsCompression index; Mycorrhiza; Pre-composition stress; Rhizobium; Soil
Year of Publication2021
JournalGeoderma
Journal citation385, p. 114860
Digital Object Identifier (DOI)https://doi.org/10.1016/j.geoderma.2020.114860
Web address (URL)https://doi.org/10.1016/j.geoderma.2020.114860
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeS2N - Soil to Nutrition - Work package 1 (WP1) - Optimising nutrient flows and pools in the soil-plant-biota system
Output statusPublished
Publication dates
Online10 Dec 2020
Publication process dates
Accepted17 Nov 2020
PublisherElsevier Science Bv
ISSN0016-7061

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