Abstract
Field experiments were conducted in 2005 and 2006 rainy season at the Institute for Agricultural Research farm, Samaru, Nigeria, to test the response of four cowpea [Vigna unguiculata (L) Walp] varieties to residual effect of four rates of sheep manure (FYM) (0, 5, 10 and 15 t/ha) applied the previous season to chilli pepper [Capsicum annuum]. Each of the experiment was a follow up to a previous one conducted in 2004 and 2005 to test the response of pepper to those rates of FYM. Applications of different rate of FYM had significant residual effect on soil chemical content. The combined results showed significant difference among the cowpea varieties for grain yield and yield components. Mean cowpea grain yield ranged from 1.7 t/ha in IT96D-757 to 2.7 t/ha in IT97K-499-35. Previous FYM application rate significantly affected cowpea grain yield, pod weight, number of seeds per pod, seed weight per pod and threshing percentage. However, 100-seed weight was not significantly affected. Cowpea grain yield ranged from 1.4 t/ha in plots without FYM to 2.4 t/ha in plots that had 10 or 15 t/ha previous year. Significant interaction was not observed between cowpea variety and previous manure application rate.
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Claims 10
Claim · model-written summary
Different rates of FYM had a significant residual effect on soil chemical content in the cowpea trial.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- different rate of FYMe1
- Outcome
- soil chemical contente1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“to test the response of four cowpea [Vigna unguiculata (L) Walp] varieties to residual effect of four rates of sheep manure (FYM) (0, 5, 10 and 15 t/ha)”
e1“Applications of different rate of FYM had significant residual effect on soil chemical content”
Claim · model-written summary
Cowpea varieties differed significantly in grain yield and yield components.
- Taxon
- cowpea
Vigna unguiculatae2 - Material
- cowpea varietiese2
- Outcome
- grain yield and yield componentse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“The combined results showed significant difference among the cowpea varieties for grain yield and yield components”
Claim · model-written summary
Cowpea variety IT96D-757 gave a mean grain yield of 1.7 t/ha.
- Taxon
- cowpea
Vigna unguiculatae3 - Material
- IT96D-757e3
- Outcome
- grain yielde3
- Value
- 1.7 t/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Mean cowpea grain yield ranged from 1.7 t/ha in IT96D-757 to 2.7 t/ha in IT97K-499-35”
Claim · model-written summary
Cowpea variety IT97K-499-35 gave a mean grain yield of 2.7 t/ha.
- Taxon
- cowpea
Vigna unguiculatae3 - Material
- IT97K-499-35e3
- Outcome
- grain yielde3
- Value
- 2.7 t/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Mean cowpea grain yield ranged from 1.7 t/ha in IT96D-757 to 2.7 t/ha in IT97K-499-35”
Claim · model-written summary
Previous FYM application rate significantly affected cowpea grain yield, pod weight and number of seeds per pod.
- Taxon
- cowpea
Vigna unguiculatae4 - Treatment
- Previous FYM application ratee4
- Outcome
- grain yield, pod weight, number of seeds per pode4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Previous FYM application rate significantly affected cowpea grain yield, pod weight, number of seeds per pod, seed weight per pod and threshing percentage”
Claim · model-written summary
Previous FYM application rate significantly affected seed weight per pod and threshing percentage of cowpea.
- Taxon
- cowpea
Vigna unguiculatae4 - Treatment
- Previous FYM application ratee4
- Outcome
- seed weight per pod and threshing percentagee4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Previous FYM application rate significantly affected cowpea grain yield, pod weight, number of seeds per pod, seed weight per pod and threshing percentage”
Claim · model-written summary
Previous FYM application rate did not significantly affect 100-seed weight of cowpea.
- Taxon
- cowpea
Vigna unguiculatae4 - Treatment
- Previous FYM application ratee4
- Outcome
- 100-seed weighte5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Previous FYM application rate significantly affected cowpea grain yield, pod weight, number of seeds per pod, seed weight per pod and threshing percentage”
e5“However, 100-seed weight was not significantly affected”
Claim · model-written summary
Cowpea grain yield without FYM was 1.4 t/ha.
- Taxon
- Cowpea
Vigna unguiculatae6 - Outcome
- grain yielde6
- Value
- 1.4 t/hae6
- Qualifier
- plots without FYMe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Cowpea grain yield ranged from 1.4 t/ha in plots without FYM to 2.4 t/ha in plots that had 10 or 15 t/ha previous year”
Claim · model-written summary
Cowpea grain yield in plots with 10 or 15 t/ha previous-year FYM was 2.4 t/ha.
- Taxon
- Cowpea
Vigna unguiculatae6 - Outcome
- grain yielde6
- Value
- 2.4 t/hae6
- Qualifier
- plots that had 10 or 15 t/ha previous yeare6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Cowpea grain yield ranged from 1.4 t/ha in plots without FYM to 2.4 t/ha in plots that had 10 or 15 t/ha previous year”
Claim · model-written summary
No significant interaction was found between cowpea variety and previous manure application rate.
- Taxon
- cowpea
Vigna unguiculatae7 - Treatment
- previous manure application ratee7
- Outcome
- interactione7
- Direction
- no_changeinferrede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e7“Significant interaction was not observed between cowpea variety and previous manure application rate”
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fertilization · yield · Vigna unguiculata (cowpea)Positive and negative results
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See all 292 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.