Abstract
Field studies were conducted during the 2013 and 2014 cropping seasons at the experimental field of the CSIR-Savanna Agricultural Research Institute, Nyankpala, to evaluate the response of groundnut to phosphorus fertilizer and manual weed control. A total of twelve treatments comprising four levels of phosphorus (0, 15, 30 and 45 kg.ha-1) and three weeding regimes (weedy check, weed free, and weeding at 3 and 6 WAP) were laid out in a randomized complete block design with three replications. Results indicated significant differences in canopy spread, effective nodulation, fresh and dry pod weights, weed biomass, 100 seed weight, haulm weight and soil arthropod pest densities and damage due to weeding regime and phosphorus interaction in both seasons. Weeding at 3 and 6 WAP plus 30 or 45 kg.ha1phosphorus reduced soil arthropod activity similar to weed free plots and improved all the yield parameters measured. Canopy spread, effective nodulation and pod yield correlated positively (r = 0.72 0.95) with haulm weights in both seasons. Although, similar growth and development were observed in the weed free and weeding at 3 and 6 WAP plots, for reasons of labour and cost envisaged in the practice of weed free farming, weeding at 3 and 6 WAP and application of 45 kg P.ha-1 is recommended for maximizing groundnut production in northern Ghana.
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Claims 8
Claim · model-written summary
Weeding at 3 and 6 WAP plus 30 or 45 kg P/ha reduced soil arthropod activity in groundnut, similar to weed-free plots.
- Taxon
- groundnut
Arachis hypogaeae0 - Treatment
- Weeding at 3 and 6 WAP plus 30 or 45 kg.ha1phosphoruse1
- Interactor
- soil arthropode1pest
- Outcome
- soil arthropod activitye1
- Direction
- reducede1
- Comparator
- weed free plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e1“Weeding at 3 and 6 WAP plus 30 or 45 kg.ha1phosphorus reduced soil arthropod activity similar to weed free plots and improved all the yield parameters measured”
Claim · model-written summary
Weeding at 3 and 6 WAP plus 30 or 45 kg P/ha improved all yield parameters of groundnut measured.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- Weeding at 3 and 6 WAP plus 30 or 45 kg.ha1phosphoruse1
- Outcome
- yield parameterse1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e1“Weeding at 3 and 6 WAP plus 30 or 45 kg.ha1phosphorus reduced soil arthropod activity similar to weed free plots and improved all the yield parameters measured”
Claim · model-written summary
Canopy spread, effective nodulation and pod yield of groundnut correlated positively with haulm weight in both seasons.
- Taxon
- groundnutArachis hypogaeae0
- Outcome
- Canopy spread, effective nodulation and pod yielde3
- Direction
- correlated positivelye3
- Value
- r = 0.72 0.95e3
- Comparator
- haulm weightse3
- Setting
- both seasonse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e3“Canopy spread, effective nodulation and pod yield correlated positively (r = 0.72 0.95) with haulm weights in both seasons”
Claim · model-written summary
Growth and development of groundnut were similar in weed-free plots and in plots weeded at 3 and 6 WAP.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- weeding at 3 and 6 WAPe4
- Outcome
- growth and developmente4
- Direction
- similare4
- Comparator
- weed freee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e4“Although, similar growth and development were observed in the weed free and weeding at 3 and 6 WAP plots”
Claim · model-written summary
Weeding at 3 and 6 WAP and 45 kg P/ha is recommended for maximizing groundnut production in northern Ghana.
- Taxon
- groundnutArachis hypogaeae5
- Treatment
- weeding at 3 and 6 WAP and application of 45 kg P.ha-1e5
- Outcome
- groundnut productione5
- Setting
- northern Ghanae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“weeding at 3 and 6 WAP and application of 45 kg P.ha-1 is recommended for maximizing groundnut production in northern Ghana”
Claim · model-written summary
Canopy spread, effective nodulation and pod weights differed significantly among weeding and phosphorus treatments in groundnut.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- weeding regime and phosphorus interactione1
- Outcome
- canopy spread, effective nodulation, fresh and dry pod weightse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e1“Results indicated significant differences in canopy spread, effective nodulation, fresh and dry pod weights, weed biomass, 100 seed weight, haulm weight and soil arthropod pest densities and damage due to weeding regime and phosphorus interaction in both seasons”
Claim · model-written summary
Weed biomass, 100 seed weight and haulm weight of groundnut differed significantly among weeding and phosphorus treatments.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- weeding regime and phosphorus interactione1
- Interactor
- weede1weed
- Outcome
- weed biomass, 100 seed weight, haulm weighte1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e1“Results indicated significant differences in canopy spread, effective nodulation, fresh and dry pod weights, weed biomass, 100 seed weight, haulm weight and soil arthropod pest densities and damage due to weeding regime and phosphorus interaction in both seasons”
Claim · model-written summary
Soil arthropod pest densities and damage differed significantly among weeding and phosphorus treatments in groundnut plots.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- weeding regime and phosphorus interactione1
- Interactor
- soil arthropode1pest
- Outcome
- soil arthropod pest densities and damagee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate the response of groundnut to phosphorus fertilizer and manual weed control”
e1“Results indicated significant differences in canopy spread, effective nodulation, fresh and dry pod weights, weed biomass, 100 seed weight, haulm weight and soil arthropod pest densities and damage due to weeding regime and phosphorus interaction in both seasons”
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