Abstract
Soybean cultivation in Ghana is limited mainly to the Guinea savanna and the forest/savanna transitional agro-ecological zones. Although soybean can be cultivated in the semi-deciduous forest zone, low soil pH and limited nodulation limit its productivity in this zone. In this study, a randomized complete block design, with four replications, was used to test if rhizobia inoculation and/or p-fertilizer could improve yield of soybean in the semi-deciduous forest zone. The residual effects of the treatments were tested on maize and soybean sequentially during the 2018 and 2019 cropping seasons. The inoculation study was repeated in 2020. Phosphorus and inoculation significantly ( p = 0.0009) increased soybean grain yield in the 2018 cropping season by 88% and 108%, respectively over the control. Co-application of P and inoculant increased grain yield 3-fold over the control. Maize grain yield ranged from 4.3 t ha −1 in the control plots to 5.2 t ha −1 in treated plots but did not differ significantly among treatments. In 2020, the combined application of P and inoculant produced a significantly (0.002) higher yield than any of the other treatments. This demonstrates that soybean can be grown economically in the semi-deciduous forest agro-ecological zone of Ghana. Co-application of P and inoculant appeared cost-effective, in terms of return on investment.
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Claims 7
Claim · model-written summary
Phosphorus increased soybean grain yield by 88% over control in 2018.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Phosphoruse0
- Outcome
- soybean grain yielde0
- Direction
- increasede0
- Value
- 88%e0
- Comparator
- controle0
- Setting
- Ghanat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus and inoculation significantly ( p = 0.0009) increased soybean grain yield in the 2018 cropping season by 88% and 108%, respectively over the control”
t0“Ghana”
Claim · model-written summary
Inoculation increased soybean grain yield by 108% over control in 2018.
- Taxon
- soybeanGlycine maxe0
- Treatment
- inoculatione0
- Outcome
- soybean grain yielde0
- Direction
- increasede0
- Value
- 108%e0
- Comparator
- controle0
RhizobiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus and inoculation significantly ( p = 0.0009) increased soybean grain yield in the 2018 cropping season by 88% and 108%, respectively over the control”
t0“rhizobium”
Claim · model-written summary
Combined P and inoculant tripled soybean grain yield over control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Co-application of P and inoculante0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 3-folde0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Co-application of P and inoculant increased grain yield 3-fold over the control”
t0“Soybean (Glycine max L. Merrill) responds to phosphorus application and rhizobium inoculation”
Claim · model-written summary
Maize yield did not differ significantly among treatments.
- Treatment
- treated plotse0
- Outcome
- Maize grain yielde0
- Direction
- did not differe0
- Value
- 4.3 t ha −1e0
- Qualifier
- 5.2 t ha −1e0
- Comparator
- control plotse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize grain yield ranged from 4.3 t ha −1 in the control plots to 5.2 t ha −1 in treated plots but did not differ significantly among treatments”
Claim · model-written summary
Combined P and inoculant yielded significantly more soybean than other treatments in 2020.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- combined application of P and inoculante0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- any of the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2020, the combined application of P and inoculant produced a significantly (0.002) higher yield than any of the other treatments”
t0“Soybean (Glycine max L. Merrill) responds to phosphorus application and rhizobium inoculation”
Claim · model-written summary
The authors concluded soybean production was economical in this Ghanaian zone.
- Taxon
- soybeanGlycine maxe0
- Outcome
- grown economically in the semi-deciduous forest agro-ecological zone of Ghanae0
- Setting
- Ghanae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean can be grown economically in the semi-deciduous forest agro-ecological zone of Ghana”
Claim · model-written summary
Co-application of P and inoculant appeared cost-effective.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Co-application of P and inoculante0
- Outcome
- cost-effective, in terms of return on investmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Co-application of P and inoculant appeared cost-effective, in terms of return on investment”
t0“Soybean”
The same questions in other papers
inoculation · Rhizobium · Glycine max (soybean)Positive and negative results
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- negative
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See all 355 papers →phosphorus · Rhizobium · Glycine max (soybean)Results agree
4 papers in the same direction as this paper
- positive
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See all 5 papers →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.