Abstract
The cowpea [Vigna unguiculata (L.) Walp] represents an important source of income and employment in the northeastern region of Para, also being a valuable source of protein in the diet, especially for the rural population. However, the productivity is low, mainly due to the low fertility of the soils used in the region for the cultivation of this plant. In this context, the correction of the factors responsible for the soil limitations that lead to nutrient deficiency, by means of lime, is of great practical importance for obtaining greater yields of crops grown in acidic soils. The objective was to evaluate the effects of five doses of lime in the production of cowpea beans, BR3-Tracuateua and BR2-Bragança cultivars and chemical attributes of a dystrophic oxisoil, at Tracuateua city. The study was a randomized block designed experimental in a factorial (5 × 2) with four replications. The terms of the factorial refer to five doses of limestone and two cowpea cultivars. Liming increased pH and concentrations of phosphorus, calcium and magnesium, reducing the Al concentration and saturation. Lime dosages did not provide significant increases in grain production. The cultivar BR3-Tracuateua was more efficient in all liming levels, producing more than 30% of grain than the BR-2 Bragança.
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Claims 5
Claim · model-written summary
Liming increased soil pH in the cowpea production trial at Tracuateua.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- Liminge1
- Outcome
- pHe1
- Direction
- increasede1
- Setting
- Tracuateua citye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea [Vigna unguiculata (L.) Walp]”
e1“Liming increased pH and concentrations of phosphorus, calcium and magnesium, reducing the Al concentration and saturation”
e2“dystrophic oxisoil, at Tracuateua city”
Claim · model-written summary
Liming increased soil phosphorus, calcium and magnesium concentrations at Tracuateua.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Liminge1
- Outcome
- concentrations of phosphorus, calcium and magnesiume1
- Direction
- increasede1
- Setting
- Tracuateua citye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea [Vigna unguiculata (L.) Walp]”
e1“Liming increased pH and concentrations of phosphorus, calcium and magnesium, reducing the Al concentration and saturation”
e2“dystrophic oxisoil, at Tracuateua city”
Claim · model-written summary
Liming reduced soil Al concentration and saturation at Tracuateua.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Liminge1
- Outcome
- Al concentration and saturatione1
- Direction
- reducinge1
- Setting
- Tracuateua citye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea [Vigna unguiculata (L.) Walp]”
e1“Liming increased pH and concentrations of phosphorus, calcium and magnesium, reducing the Al concentration and saturation”
e2“dystrophic oxisoil, at Tracuateua city”
Claim · model-written summary
Lime doses did not significantly increase cowpea grain production.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Lime dosagese3
- Outcome
- grain productione3
- Direction
- did not provide significant increasese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea [Vigna unguiculata (L.) Walp]”
e3“Lime dosages did not provide significant increases in grain production”
Claim · model-written summary
The cultivar BR3-Tracuateua produced more than 30% more grain than BR-2 Bragança across liming levels.
- Taxon
- cowpeaVigna unguiculatae0
- Material
- BR3-Tracuateuae4
- Outcome
- graine4
- Direction
- moree4
- Value
- 30%e4
- Comparator
- BR-2 Bragançae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cowpea [Vigna unguiculata (L.) Walp]”
e4“The cultivar BR3-Tracuateua was more efficient in all liming levels, producing more than 30% of grain than the BR-2 Bragança”
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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.