Abstract
Abstract Purpose Green manuring can increase the plant available fraction of zinc (Zn) in soil, making it a potential approach to increase wheat Zn concentrations and fight human Zn deficiency. We tested whether green manure increases the ability of both the native soil bacteria and inoculated Zn solubilizing bacteria (ZSB) to mobilize Zn. Methods Wheat was grown in a pot experiment with the following three factors (with or without); (i) clover addition; (ii) soil x-ray irradiation (i.e. elimination of the whole soil biota followed by re-inoculation with the native soil bacteria); and (iii) ZSB inoculation. The incorporation of clover in both the irradiated and the ZSB treatments allowed us to test green manure effects on the mobilization of Zn by indigenous soil bacteria as well as by inoculated strains. Results Inoculation with ZSB did neither increase soil Zn availability nor wheat Zn uptake. The highest soil Zn availabilities were found when clover was incorporated, particularly in the irradiated soils (containing only soil bacteria). This was partly associated with the stimulation of bacterial activity during the decomposition of the incorporated green manure. Conclusion The results support that the activity of soil bacteria is intimately involved in the mobilization of Zn following the incorporation of green manure.
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Claims 4
Claim · model-written summary
Inoculation with Zn solubilizing bacteria (ZSB) did not increase soil Zn availability or wheat Zn uptake.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- Inoculation with ZSBe1
- Interactor
- ZSBe1symbiont
- Outcome
- soil Zn availability nor wheat Zn uptakee1
- Direction
- neither increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Inoculation with ZSB did neither increase soil Zn availability nor wheat Zn uptake”
Claim · model-written summary
The highest soil Zn availabilities were found when clover was incorporated, particularly in the irradiated soils.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- clover was incorporatede2
- Outcome
- soil Zn availabilitiese2
- Direction
- higheste2
- Qualifier
- particularly in the irradiated soilse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat uptake (Triticum aestivum L.)”
e2“The highest soil Zn availabilities were found when clover was incorporated, particularly in the irradiated soils (containing only soil bacteria)”
Claim · model-written summary
The clover effect on soil Zn availability was partly associated with stimulated bacterial activity during green manure decomposition.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- soil Zn availabilitiese2
- Qualifier
- stimulation of bacterial activity during the decomposition of the incorporated green manuree3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat uptake (Triticum aestivum L.)”
e2“The highest soil Zn availabilities were found when clover was incorporated, particularly in the irradiated soils (containing only soil bacteria)”
e3“This was partly associated with the stimulation of bacterial activity during the decomposition of the incorporated green manure”
Claim · model-written summary
Soil bacteria activity is intimately involved in Zn mobilization following green manure incorporation.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- mobilization of Zne4
- Qualifier
- activity of soil bacteriae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat uptake (Triticum aestivum L.)”
e4“The results support that the activity of soil bacteria is intimately involved in the mobilization of Zn following the incorporation of green manure”
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