Abstract
Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria. The experimental design was a randomized complete block and there were three replications. Seed yield progressively increased with increasing plant population, being significantly highest at 222,222 plants/ha. The application of 100 kg N/ha increased the total dry matter per plant compared with no application or with 50 kg N/ha, although seed yield benefits were not readily apparent. Nodulation was not statistically influenced by N treatment although zero or- low N application showed a slight increase in nodulation, suggesting a lack of adequate population of the effective rhizobium in the location. Innoculation of bambara groundnut seeds with effective rhizobium strain before planting becomes necessary for good nodulation and production of the crop under Nsukka agro-ecological conditions.Key words: Vigna subterranea, nodulation, N-fertilizer, plant population, seed yield, drymatter yield.
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Claims 7
Claim · model-written summary
Seed yield of bambara groundnut increased progressively with plant population and was significantly highest at 222,222 plants/ha
- Taxon
- bambara groundnut
Vigna subterraneae0 - Treatment
- plant populatione1
- Outcome
- Seed yielde1
- Direction
- increasede1
- Qualifier
- significantly highest at 222,222 plants/hae1
- Setting
- Nsukka, Nigeriae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e1“Seed yield progressively increased with increasing plant population, being significantly highest at 222,222 plants/ha”
Claim · model-written summary
Applying 100 kg N/ha increased total dry matter per plant of bambara groundnut compared with no N or 50 kg N/ha
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- 100 kg N/hae2
- Outcome
- total dry matter per plante2
- Direction
- increasede2
- Comparator
- no application or with 50 kg N/hae2
- Setting
- Nsukka, Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e2“The application of 100 kg N/ha increased the total dry matter per plant compared with no application or with 50 kg N/ha, although seed yield benefits were not readily apparent”
Claim · model-written summary
Applying 100 kg N/ha did not readily show seed yield benefits in bambara groundnut compared with no N or 50 kg N/ha
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- 100 kg N/hae2
- Outcome
- seed yield benefitse2
- Direction
- no_changeinferrede2
- Comparator
- no application or with 50 kg N/hae2
- Setting
- Nsukka, Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e2“The application of 100 kg N/ha increased the total dry matter per plant compared with no application or with 50 kg N/ha, although seed yield benefits were not readily apparent”
Claim · model-written summary
Nitrogen treatment did not statistically influence nodulation of bambara groundnut
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- N treatmente3
- Outcome
- Nodulatione3
- Direction
- no_changeinferrede3
- Setting
- Nsukka, Nigeriae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e3“Nodulation was not statistically influenced by N treatment”
Claim · model-written summary
Zero or low N application showed a slight increase in nodulation of bambara groundnut
- Taxon
- bambara groundnutVigna subterraneae0
- Treatment
- zero or- low N applicatione4
- Outcome
- nodulatione4
- Direction
- increasee4
- Value
- slighte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e4“zero or- low N application showed a slight increase in nodulation, suggesting a lack of adequate population of the effective rhizobium in the location”
Claim · model-written summary
The slight nodulation increase at zero or low N suggests too few effective rhizobia in the field
- Taxon
- bambara groundnutVigna subterraneae0
- Interactor
- effective rhizobiume4symbiont
- Outcome
- nodulatione4
- Qualifier
- lack of adequate population of the effective rhizobium in the locatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Responses of bambara groundnut (Vigna subterranea (L.) Verdc) to 3 levels of fertilizer N (0, 50, and 100 kg N/ha) and seven plant populations (55555, 63492, 74074, 88888, 111111, 148148 and 222222 plants/ha) were studied under field conditions in Nsukka, Nigeria”
e4“zero or- low N application showed a slight increase in nodulation, suggesting a lack of adequate population of the effective rhizobium in the location”
Claim · model-written summary
Inoculating bambara groundnut seeds with an effective rhizobium strain before planting is necessary for good nodulation and production in Nsukka
- Taxon
- bambara groundnutVigna subterraneae5
- Interactor
- effective rhizobium straine5symbiont
- Outcome
- Innoculation of bambara groundnut seeds with effective rhizobium strain before plantinge5
- Setting
- Nsukka agro-ecological conditionse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Innoculation of bambara groundnut seeds with effective rhizobium strain before planting becomes necessary for good nodulation and production of the crop under Nsukka agro-ecological conditions”
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