Abstract
The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa. Crops were grown in pots containing two P deficient soils and fertilized with Tunisian rock phosphate (TRP) or chemical triple superphosphate (TSP). TRP amendment significantly increased shoot dry yield (+53% to +162%), P-content, protein content, and chlorophyll content mainly at the rate of 150 kg P ha−1. No significant effects were observed on mycorrhization and antioxidant enzyme activities. However, TSP negatively affected the frequency of root mycorrhization and stimulated antioxidant enzyme activities. TRP amendment induced an increase in fluorescein diacetate activity, alkaline phosphatase activity, and species richness. The stimulation involved mainly Actinobacteria, Proteobacteria, and Firmicutes with higher stimulation of Actinobacteria in the case of vetch. The present work indicated a better P-use efficiency of vetch. It suggested also that at least a part of the enhancement observed in plant-growth parameters following TRP fertilization is driven by changes in the structure of rhizosphere microbial communities. Nevertheless, the correlation between changes in microbial composition and phosphorus uses efficiency needs to be investigated further.
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Claims 10
Claim · model-written summary
TRP amendment significantly increased shoot dry yield by +53% to +162%, mainly at 150 kg P ha−1.
- Taxon
- Vicia sativa, and Medicago sativa
Medicago sativa_Vicia_sativa.jpg?width=60)
Vicia sativae2 - Organ / stage
- shoote1
- Treatment
- TRP amendmente1
- Outcome
- shoot dry yielde1
- Direction
- increasede1
- Value
- +53% to +162%e1
- Qualifier
- mainly at the rate of 150 kg P ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Vicia_sativa.jpg?width=500)
Verbatim
e1“TRP amendment significantly increased shoot dry yield (+53% to +162%), P-content, protein content, and chlorophyll content mainly at the rate of 150 kg P ha−1”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TRP amendment significantly increased P-content, protein content and chlorophyll content, mainly at 150 kg P ha−1.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae2
- Treatment
- TRP amendmente1
- Outcome
- P-content, protein content, and chlorophyll contente1
- Direction
- increasede1
- Qualifier
- mainly at the rate of 150 kg P ha−1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“TRP amendment significantly increased shoot dry yield (+53% to +162%), P-content, protein content, and chlorophyll content mainly at the rate of 150 kg P ha−1”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TRP amendment had no significant effect on mycorrhization or antioxidant enzyme activities.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae3
- Treatment
- TRP amendmente2
- Outcome
- mycorrhization and antioxidant enzyme activitiese1
- Direction
- No significant effectse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“No significant effects were observed on mycorrhization and antioxidant enzyme activities”
e2“TRP amendment significantly increased shoot dry yield (+53% to +162%), P-content, protein content, and chlorophyll content mainly at the rate of 150 kg P ha−1”
e3“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TSP negatively affected the frequency of root mycorrhization.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae2
- Organ / stage
- roote1
- Treatment
- TSPe1
- Outcome
- frequency of root mycorrhizatione1
- Direction
- negatively affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“However, TSP negatively affected the frequency of root mycorrhization and stimulated antioxidant enzyme activities”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TSP stimulated antioxidant enzyme activities.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae2
- Treatment
- TSPe1
- Outcome
- antioxidant enzyme activitiese1
- Direction
- stimulatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“However, TSP negatively affected the frequency of root mycorrhization and stimulated antioxidant enzyme activities”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TRP amendment increased fluorescein diacetate activity, alkaline phosphatase activity and species richness.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae2
- Treatment
- TRP amendmente1
- Outcome
- fluorescein diacetate activity, alkaline phosphatase activity, and species richnesse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“TRP amendment induced an increase in fluorescein diacetate activity, alkaline phosphatase activity, and species richness”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
Vetch (Vicia sativa) showed a better P-use efficiency.
- Taxon
- Vicia sativaVicia sativae2
- Outcome
- P-use efficiencye1
- Direction
- bettere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The present work indicated a better P-use efficiency of vetch”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
At least part of the plant-growth enhancement after TRP fertilization is suggested to be driven by changes in rhizosphere microbial community structure.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae2
- Treatment
- TRP fertilizatione1
- Outcome
- plant-growth parameterse1
- Qualifier
- changes in the structure of rhizosphere microbial communitiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It suggested also that at least a part of the enhancement observed in plant-growth parameters following TRP fertilization is driven by changes in the structure of rhizosphere microbial communities”
e2“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TRP amendment stimulated mainly Actinobacteria, Proteobacteria and Firmicutes in the rhizosphere.
- Taxon
- Vicia sativa, and Medicago sativaMedicago sativaVicia sativae3
- Treatment
- TRP amendmente2
- Interactor
- ActinobacteriaActinomycetotae1other
- Outcome
- Actinobacteria, Proteobacteria, and Firmicutese1
- Direction
- stimulatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The stimulation involved mainly Actinobacteria, Proteobacteria, and Firmicutes with higher stimulation of Actinobacteria in the case of vetch”
e2“TRP amendment induced an increase in fluorescein diacetate activity, alkaline phosphatase activity, and species richness”
e3“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
Claim · model-written summary
TRP stimulation of Actinobacteria was higher in vetch than in the other legume.
- Taxon
- Vicia sativaVicia sativae3
- Treatment
- TRP amendmente2
- Interactor
- ActinobacteriaActinomycetotae1other
- Outcome
- stimulation of Actinobacteriae1
- Direction
- highere1
- Comparator
- Medicago sativae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The stimulation involved mainly Actinobacteria, Proteobacteria, and Firmicutes with higher stimulation of Actinobacteria in the case of vetch”
e2“TRP amendment induced an increase in fluorescein diacetate activity, alkaline phosphatase activity, and species richness”
e3“The objective of this study is to evaluate the impacts of the direct use of natural rock phosphates on two forage legumes, Vicia sativa, and Medicago sativa”
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phosphorus · physiology: pigments · Vicia sativa (common vetch)Results agree
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.