Abstract
Background: Soybean [Glycine max (L.) Merrill] is an annual herbaceous leguminous grain crop which is cultivated mainly for its oil and protein. The objective of the study was to determine the effects of plant density and zinc added to phosphorus fertilizer sources on soybean yield performance under different environmental conditions. Methods: A field trial was executed in two sites during the 2018/19 and 2019/20 summer planting seasons. The experimental design involved a 2 × 2 × 5 factorial fitted into a randomized complete block design (RCBD) with four replications. The experiment consisted of two plant densities, a lower plant density of 66 666 plants/ha and a higher plant density of 111 111 plants/ha. The five different types of fertilizer treatments were single superphosphate, monoammonium phosphate, zinc sulphate added to single superphosphate, zinc sulphate added to monoammonium phosphate and control. Result: The results showed that plant density has a significant effect (P less than 0.05) on soybean number of pods per plant and the field biomass yield. Soybean planted under lower plant density conditions produced a significantly larger number of pods per plant during both planting seasons, whereas higher plant density conditions resulted in a higher soybean field biomass yield during the 2018/19 planting season. It was observed that soybean treated with monoammonium phosphate had higher seed mass.
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Claims 3
Claim · model-written summary
Lower density produced significantly more soybean pods per plant in both seasons.
- Taxon
- Soybean
Glycine maxe0 - Treatment
- lower plant density conditionse0
- Outcome
- number of pods per plante0
- Direction
- largere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean planted under lower plant density conditions produced a significantly larger number of pods per plant during both planting seasons”
Claim · model-written summary
Higher density produced higher soybean field biomass yield in 2018/19.
- Taxon
- soybeanGlycine maxe0
- Treatment
- higher plant density conditionse0
- Outcome
- field biomass yielde0
- Direction
- highere0
- Qualifier
- 2018/19 planting seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher plant density conditions resulted in a higher soybean field biomass yield during the 2018/19 planting season”
Claim · model-written summary
Monoammonium phosphate treatment gave soybean higher seed mass.
- Taxon
- soybeanGlycine maxe0
- Treatment
- monoammonium phosphatee0
- Outcome
- seed masse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean treated with monoammonium phosphate had higher seed mass”
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