Abstract
Adding mulch biomass prior to crop seeding may improve production of tropical soil. We evaluated the response of four bean (Phaseolus vulgaris L.) genotypes to the addition of mulch biomass from Tithonia diversifolia (Hemsl.) Gray and Cajanus cajan L. Millsp. The addition of mulch did not result in significant differences (p < 0.05) in soil characteristics when compared to a control (no mulch addition) except for soil potassium (K), which was significantly greater (p < 0.05) in the T. diversifolia mulch biomass treatment. Bean yield and shoot biomass were significantly greater (p < 0.05) in the mulch biomass treatments compared to the control (no biomass added). In these treatments, Phosphorus (P)-efficient bean genotypes had a significantly greater (p < 0.05) yield and shoot biomass. Bean shoot nutrient concentrations were significantly different (p < 0.05) between mulch biomass treatments and between bean genotypes (P, K and magnesium (Mg) only). Phosphorus utilization and uptake efficiencies were significantly different (p < 0.05) between mulch biomass treatments and between bean genotypes. Bean root biomass was not significantly different (p < 0.05) between mulch biomass treatments, but was significantly different (p < 0.05) between bean genotypes. The number of root nodules was significantly greater (p < 0.05) in the T. diversifolia mulch biomass treatment and was significantly different between bean genotypes.
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Claims 12
Claim · model-written summary
Tithonia mulch increased soil potassium relative to no mulch.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarist0 - Treatment
- T. diversifolia mulch biomass treatmente0
- Outcome
- soil potassium (K)e0
- Direction
- greatere0
- Comparator
- control (no mulch addition)e1
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“soil potassium (K), which was significantly greater (p < 0.05) in the T. diversifolia mulch biomass treatment”
e1“control (no mulch addition)”
Claim · model-written summary
Mulch biomass increased bean yield relative to no biomass.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- Bean yielde0
- Direction
- greatere0
- Comparator
- control (no biomass added)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Bean yield and shoot biomass were significantly greater (p < 0.05) in the mulch biomass treatments compared to the control (no biomass added).”
Claim · model-written summary
Mulch biomass increased bean shoot biomass relative to no biomass.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- shoot biomasse0
- Direction
- greatere0
- Comparator
- control (no biomass added)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Bean yield and shoot biomass were significantly greater (p < 0.05) in the mulch biomass treatments compared to the control (no biomass added).”
Claim · model-written summary
Phosphorus efficient genotypes had greater yield under mulch.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Material
- Phosphorus (P)-efficient bean genotypese0
- Treatment
- mulch biomass treatmentse1
- Outcome
- yielde0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Phosphorus (P)-efficient bean genotypes had a significantly greater (p < 0.05) yield and shoot biomass.”
e1“in the mulch biomass treatments compared to the control”
Claim · model-written summary
Phosphorus efficient genotypes had greater shoot biomass under mulch.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Material
- Phosphorus (P)-efficient bean genotypese0
- Treatment
- mulch biomass treatmentse1
- Outcome
- shoot biomasse0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Phosphorus (P)-efficient bean genotypes had a significantly greater (p < 0.05) yield and shoot biomass.”
e1“in the mulch biomass treatments compared to the control”
Claim · model-written summary
Shoot nutrient concentrations differed across mulch sources and genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- Bean shoot nutrient concentrationse0
- Direction
- differente0
- Comparator
- bean genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Bean shoot nutrient concentrations were significantly different (p < 0.05) between mulch biomass treatments and between bean genotypes (P, K and magnesium (Mg) only).”
Claim · model-written summary
Phosphorus utilization efficiency differed across mulch sources and genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- Phosphorus utilizatione0
- Direction
- differente0
- Comparator
- bean genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Phosphorus utilization and uptake efficiencies were significantly different (p < 0.05) between mulch biomass treatments and between bean genotypes.”
Claim · model-written summary
Phosphorus uptake efficiency differed across mulch sources and genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- uptake efficienciese0
- Direction
- differente0
- Comparator
- bean genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Phosphorus utilization and uptake efficiencies were significantly different (p < 0.05) between mulch biomass treatments and between bean genotypes.”
Claim · model-written summary
Root biomass did not differ significantly across mulch sources.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- mulch biomass treatmentse0
- Outcome
- Bean root biomasse0
- Direction
- not significantly differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“Bean root biomass was not significantly different (p < 0.05) between mulch biomass treatments”
Claim · model-written summary
Root biomass differed significantly among genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- Bean root biomasse1
- Direction
- significantly differente0
- Comparator
- bean genotypese0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“but was significantly different (p < 0.05) between bean genotypes.”
e1“Bean root biomass”
Claim · model-written summary
Tithonia mulch increased root nodule number.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- T. diversifolia mulch biomass treatmente0
- Outcome
- number of root nodulese0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“The number of root nodules was significantly greater (p < 0.05) in the T. diversifolia mulch biomass treatment”
Claim · model-written summary
Root nodule number differed among bean genotypes.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- number of root nodulese1
- Direction
- differente0
- Comparator
- bean genotypese0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Phaseolus vulgaris L.”
e0“was significantly different between bean genotypes.”
e1“number of root nodules”
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