Abstract
Aim: Amelioration effect of soil amendment on growth and yield of Vigna unguiculata L. grown in acidic and alkaline soils. Study Design: The study was conducted in a randomized complete block design with five replicates. Place and Duration of Study: Department of Botany, University of Calabar, Nigeria, between May and September, 2017. Methodology: Composite soils from two locations Akamkpa (pH 4.0) and Odukpani (pH 9.0) were collected, mixed thoroughly with organic manure (OM) and agricultural lime (AL) singly and in combination, allowed to stay three weeks for proper blending before V. unguiculata seeds were sown. On seedlings germination, amelioration effect of soil amendment on growth and yield of cowpea grown in acidic and alkaline soils was studied at different periods of growth. Results: Results revealed significant (P=0.05) increase in leaf area, plant height, number of leaves, leaf fresh and leaf dry weight, relative growth rate, net assimilation rate and leaf area ratio of V. unguiculata grown in acidic and alkaline soils treated with OM and AL. Pod length, number of pods plant-1, number of seeds pod-1, number of seeds plant-1, weight of 100 seeds increased significantly. Organic manure used singly and in combination was more effective in ameliorating soil pH effect than AL. Vigna unguiculata performed better in treated and untreated alkaline than in acidic soils. Least plant height for V. unguiculata grown in untreated alkaline soil at 12 weeks after sowing WAS was 60.22±0.16a cm and highest 119.63E2±.35g cm for plants grown in soil treated with AL1+OM1. Least number of seeds plant-1 for plants grown in untreated acidic soil at 12 WAS was 90.60±0.02a and the highest 139.18E2±0.02e for plants grown in soil treated with AL1+OM1. Conclusion: An improvement in growth and seed yield of V. unguiculata grown in acidic and alkaline soils is feasible through the use of organic manure and agricultural lime.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
OM and AL significantly increased leaf area, height and leaf number in acidic and alkaline soils.
- Taxon
- V. unguiculata
Vigna unguiculatae0 - Treatment
- OM and ALe0
- Outcome
- leaf area, plant height, number of leavese0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed significant (P=0.05) increase in leaf area, plant height, number of leaves, leaf fresh and leaf dry weight, relative growth rate, net assimilation rate and leaf area ratio of V. unguiculata grown in acidic and alkaline soils treated with OM and AL.”
Claim · model-written summary
OM and AL significantly increased leaf fresh and dry weight and relative growth rate.
- Taxon
- V. unguiculataVigna unguiculatae0
- Treatment
- OM and ALe0
- Outcome
- leaf fresh and leaf dry weight, relative growth ratee0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed significant (P=0.05) increase in leaf area, plant height, number of leaves, leaf fresh and leaf dry weight, relative growth rate, net assimilation rate and leaf area ratio of V. unguiculata grown in acidic and alkaline soils treated with OM and AL.”
Claim · model-written summary
OM and AL significantly increased net assimilation rate and leaf area ratio.
- Taxon
- V. unguiculataVigna unguiculatae0
- Treatment
- OM and ALe0
- Outcome
- net assimilation rate and leaf area ratioe0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed significant (P=0.05) increase in leaf area, plant height, number of leaves, leaf fresh and leaf dry weight, relative growth rate, net assimilation rate and leaf area ratio of V. unguiculata grown in acidic and alkaline soils treated with OM and AL.”
Claim · model-written summary
Pod length, pod count and seeds per pod increased significantly.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Outcome
- Pod length, number of pods plant-1, number of seeds pod-1e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pod length, number of pods plant-1, number of seeds pod-1, number of seeds plant-1, weight of 100 seeds increased significantly.”
t0“Vigna unguiculata L.”
Claim · model-written summary
Seeds per plant and 100-seed weight increased significantly.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Outcome
- number of seeds plant-1, weight of 100 seedse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pod length, number of pods plant-1, number of seeds pod-1, number of seeds plant-1, weight of 100 seeds increased significantly.”
t0“Vigna unguiculata L.”
Claim · model-written summary
Organic manure alone and combined was more effective than agricultural lime at ameliorating soil pH effects.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Outcome
- ameliorating soil pH effecte0
- Direction
- more effectivee0
- Comparator
- ALe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic manure used singly and in combination was more effective in ameliorating soil pH effect than AL.”
t0“Vigna unguiculata L.”
Claim · model-written summary
Cowpea performed better in alkaline than acidic soil, with and without amendment.
- Taxon
- Vigna unguiculataVigna unguiculatae0
- Outcome
- performed bettere0
- Direction
- bettere0
- Comparator
- acidic soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vigna unguiculata performed better in treated and untreated alkaline than in acidic soils.”
Claim · model-written summary
Untreated alkaline soil had the least plant height at 12 weeks after sowing.
- Taxon
- V. unguiculataVigna unguiculatae0
- Outcome
- plant heighte0
- Direction
- Leaste0
- Value
- 60.22±0.16a cme0
- Setting
- untreated alkaline soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Least plant height for V. unguiculata grown in untreated alkaline soil at 12 weeks after sowing WAS was 60.22±0.16a cm”
Claim · model-written summary
AL1+OM1 produced the highest plant height.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- AL1+OM1e0
- Outcome
- higheste0
- Direction
- higheste0
- Value
- 119.63E2±.35g cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest 119.63E2±.35g cm for plants grown in soil treated with AL1+OM1”
t0“Vigna unguiculata L.”
Claim · model-written summary
Untreated acidic soil had the least seeds per plant at 12 weeks.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Outcome
- number of seeds plant-1e0
- Direction
- Leaste0
- Value
- 90.60±0.02ae0
- Setting
- untreated acidic soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Least number of seeds plant-1 for plants grown in untreated acidic soil at 12 WAS was 90.60±0.02a”
t0“Vigna unguiculata L.”
Claim · model-written summary
AL1+OM1 gave the highest seeds per plant.
- Taxon
- Vigna unguiculata L.Vigna unguiculatat0
- Treatment
- AL1+OM1e0
- Outcome
- higheste0
- Direction
- higheste0
- Value
- 139.18E2±0.02ee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest 139.18E2±0.02e for plants grown in soil treated with AL1+OM1”
t0“Vigna unguiculata L.”
The same questions in other papers
fertilization · growth · Vigna unguiculata (cowpea)Positive and negative results
130 papers in the same direction as this paper · 10 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
139 papers more in this group
See all 143 papers →lime · growth · Vigna unguiculata (cowpea)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 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.