Abstract
Soybean is becoming an important cash crop in northern Ghana. Yet the yields are low due to use of low yielding varieties and limited use of inputs. Greenhouse and field experiments were carried out to evaluate the effects of two phosphorus (P) sources and Rhizobium inoculation on growth, nodulation, P uptake, and yield of three soybean genotypes on Ferric Lixisols of the Guinea savanna zone of Ghana. The P sources were triple superphosphate (TSP) and Morocco phosphate rock (MPR), while the genotypes were TGx 1448-2E, TGx 1904-6F, and TGx 1955-4F. The greenhouse experiment was conducted at the University of Ghana, Legon in a completely randomized design. The field experiment which was carried out in the Upper East region of Ghana was laid out in a split-split plot design with four replicates. In both the greenhouse and field experiments, application of TSP at 30 kg P ha−1 resulted in significantly higher growth and P uptake in shoot compared with MPR and control. Soybean genotypes showed significant differences in growth, nutrient uptake, and grain yield in both the greenhouse and the field experiments. Rhizobium inoculation increased nodule number and dry weight but did not increase grain yield. The genotype TGx 1955-4F appears to show greater potential for increasing productivity of soybean in low P soils in northern Ghana.
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Claims 6
Claim · model-written summary
TSP at 30 kg P ha−1 increased soybean growth relative to MPR and control in greenhouse and field experiments.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- application of TSP at 30 kg P ha−1e0
- Outcome
- growthe0
- Direction
- highere0
- Comparator
- MPR and controle0
- Setting
- greenhouse and field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both the greenhouse and field experiments, application of TSP at 30 kg P ha−1 resulted in significantly higher growth and P uptake in shoot compared with MPR and control.”
t0“Soybean”
Claim · model-written summary
TSP at 30 kg P ha−1 increased soybean shoot P uptake relative to MPR and control.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- application of TSP at 30 kg P ha−1e0
- Outcome
- P uptake in shoote0
- Direction
- highere0
- Comparator
- MPR and controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both the greenhouse and field experiments, application of TSP at 30 kg P ha−1 resulted in significantly higher growth and P uptake in shoot compared with MPR and control.”
t0“Soybean”
Claim · model-written summary
Soybean genotypes differed significantly in growth, nutrient uptake, and grain yield in greenhouse and field experiments.
- Taxon
- SoybeanGlycine maxe0
- Material
- Soybean genotypese0
- Outcome
- growth, nutrient uptake, and grain yielde0
- Direction
- differencese0
- Setting
- greenhouse and the field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean genotypes showed significant differences in growth, nutrient uptake, and grain yield in both the greenhouse and the field experiments.”
Claim · model-written summary
Rhizobium inoculation increased soybean nodule number and dry weight.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Rhizobium inoculatione0
- Outcome
- nodule number and dry weighte0
- Direction
- increasede0
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation increased nodule number and dry weight but did not increase grain yield.”
t0“Soybean”
Claim · model-written summary
Rhizobium inoculation did not increase soybean grain yield.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Rhizobium inoculatione0
- Outcome
- grain yielde0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium inoculation increased nodule number and dry weight but did not increase grain yield.”
t0“Soybean”
Claim · model-written summary
TGx 1955-4F appears promising for soybean productivity in low P soils in northern Ghana.
- Taxon
- soybeanGlycine maxe0
- Material
- TGx 1955-4Fe0
- Outcome
- increasing productivitye0
- Qualifier
- low P soilse0
- Setting
- northern Ghanae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The genotype TGx 1955-4F appears to show greater potential for increasing productivity of soybean in low P soils in northern Ghana.”
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