Abstract
Field trials were conducted during the 2015 rainy season at the Bayero University Kano Teaching and Research Farm (110 58’N, 8025’E and 475m above sea level) and National Institute of Horticulture (NIHORT) Bagauda (lat. 120 08'N, long. 80 32'E, 500m above sea level). The study was conducted to determine the response of cowpea varieties to phosphorus levels in the Sudan savannah of Nigeria. The treatments consisted of four cowpea varieties (UAM-09-1051-1, IT99K-573-2-1, IT99K-573-1-1, and TVX 3236) and phosphorus fertilizer (SSP) (0, 20, and 40kg/ha) which were laid out in a Randomized Complete Block Design (RCBD). The result revealed that application of 40 kg/ha P2O5 statistically recorded the highest grain yield/ha at BUK. No significant phosphorus effect was recorded on grain yield/ha at Bagauda. The findings of the study also revealed that there was significant varietal effect on cowpea growth and yield at both study locations. Higher grain yield was recorded from variety IT99k-573-2-1 (1193.400 kg/ha), followed by variety TVX 3236 (950.900 kg/ha) and IT99k-573-1-1 (776.500 kg/ha) at BUK while no significant effect of variety was recorded at Bagauda. The result of the simple correlation analysis revealed significant negative and positive association between growth and yield parameters. Thus based on this findings, application of 40 kg/ha P2O5 can be recommended for better cowpea growth and yield. Similarly, variety IT99k-573-2-1 can be recommended for both locations.
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Claims 10
Claim · model-written summary
At BUK, 40 kg/ha P2O5 gave the highest cowpea grain yield.
- Taxon
- COWPEA
Vigna unguiculatat0 - Treatment
- 40 kg/ha P2O5e0
- Outcome
- grain yield/hae0
- Direction
- higheste0
- Setting
- BUKe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 40 kg/ha P2O5 statistically recorded the highest grain yield/ha at BUK”
t0“COWPEA”
Claim · model-written summary
Phosphorus had no significant effect on cowpea grain yield at Bagauda.
- Taxon
- COWPEAVigna unguiculatat0
- Treatment
- phosphoruse0
- Outcome
- grain yield/hae0
- Setting
- Bagaudae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant phosphorus effect was recorded on grain yield/ha at Bagauda”
t0“COWPEA”
Claim · model-written summary
Cowpea variety significantly affected growth and yield at both sites.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- growth and yielde0
- Qualifier
- varietal effecte0
- Setting
- both study locationse0
Not reportedMaterialDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant varietal effect on cowpea growth and yield at both study locations”
Claim · model-written summary
At BUK, IT99k-573-2-1 had the highest reported cowpea grain yield, 1193.400 kg/ha.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- IT99k-573-2-1e0
- Outcome
- grain yielde0
- Direction
- Highere0
- Value
- 1193.400 kg/hae0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher grain yield was recorded from variety IT99k-573-2-1 (1193.400 kg/ha)”
t0“COWPEA”
Claim · model-written summary
At BUK, TVX 3236 had a grain yield of 950.900 kg/ha.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- TVX 3236e0
- Outcome
- grain yielde1
- Value
- 950.900 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety TVX 3236 (950.900 kg/ha)”
e1“Higher grain yield was recorded”
t0“COWPEA”
Claim · model-written summary
At BUK, IT99k-573-1-1 had a grain yield of 776.500 kg/ha.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- IT99k-573-1-1e0
- Outcome
- grain yielde1
- Value
- 776.500 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IT99k-573-1-1 (776.500 kg/ha)”
e1“Higher grain yield was recorded”
t0“COWPEA”
Claim · model-written summary
At Bagauda, cowpea variety did not significantly affect grain yield.
- Taxon
- COWPEAVigna unguiculatat0
- Outcome
- grain yielde1
- Setting
- Bagaudae0
Not reportedMaterialDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effect of variety was recorded at Bagauda”
e1“Higher grain yield was recorded from variety IT99k-573-2-1 (1193.400 kg/ha), followed by variety TVX 3236 (950.900 kg/ha) and IT99k-573-1-1 (776.500 kg/ha) at BUK”
t0“COWPEA”
Claim · model-written summary
Growth and yield parameters showed significant negative and positive correlations.
- Taxon
- COWPEAVigna unguiculatat0
- Outcome
- yield parameterse0
- Direction
- negative and positivee0
- Qualifier
- growthe0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant negative and positive association between growth and yield parameters”
t0“COWPEA”
Claim · model-written summary
The authors recommend 40 kg/ha P2O5 for better cowpea growth and yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- 40 kg/ha P2O5e0
- Outcome
- better cowpea growth and yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 40 kg/ha P2O5 can be recommended for better cowpea growth and yield”
Claim · model-written summary
The authors recommend IT99k-573-2-1 for both locations.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- IT99k-573-2-1e0
- Outcome
- recommended for both locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variety IT99k-573-2-1 can be recommended for both locations”
t0“COWPEA”
The same questions in other papers
phosphorus · yield · Vigna unguiculata (cowpea)Results differ
106 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
109 papers more in this group
See all 113 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.