Abstract
This study was carried out during 2012 and 2013 summer seasons at The Experimental Farm of Fac. Environ. Agric. Sci., El-Arish, North Sinai, Egypt, to study the effect of lowering the recommended phosphorus dose with foliar phosphorus addition on growth and productivity of cowpea (Vigna unguiculata L. Walp.) plants. This experiment included 7 treatments which were: The control which was the recommended rate of phosphorus fertilizer as soil addition (40kg P2O5/fed.) (T1), 100% of the recommended dose + spraying with phosphorus once weekly at rate of 2% of super phosphate (T2), 100% of the recommended dose + foliar spray twice weekly (T3), 75% of the recommended dose + foliar spray once weekly (T4), 75% of the recommended dose + foliar spray twice weekly (T5), 50% of the recommended dose + foliar spray once weekly (T6) and 50% of the recommended dose + foliar spray twice weekly (T7). Results show that application of T6 caused maximum plant height, stem length and total dry weight and differed significantly with other treatments, while T5 gave rise to maximum number of branches and leaves area per plant. Most of growth parameters were enhanced with the decrease of phosphorus soil addition and spraying with foliar phosphorus. Treatments have a significant effect on green pods yield, seeds yield, number of seeds per pod, protein %, protein yield and pod weight. Phosphorus treatments have a significant effect on weight loss % at room and cold storage conditions. Color changes as b* and c* at the case of storage at room temperature (28.5 ±5°C) were more acute after 5 days of storage than cold storage (14±1°C) conditions.
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Claims 8
Claim · model-written summary
T6 gave maximum plant height, stem length and total dry weight, significantly differing from other treatments.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- T6e1
- Outcome
- plant height, stem length and total dry weighte2
- Direction
- maximume2
- Comparator
- other treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“50% of the recommended dose + foliar spray once weekly (T6)”
e2“application of T6 caused maximum plant height, stem length and total dry weight and differed significantly with other treatments”
Claim · model-written summary
T5 gave the maximum number of branches and leaf area per plant.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- T5e1
- Outcome
- number of branches and leaves area per plante2
- Direction
- maximume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“75% of the recommended dose + foliar spray twice weekly (T5)”
e2“T5 gave rise to maximum number of branches and leaves area per plant.”
Claim · model-written summary
Most growth parameters improved with lower soil phosphorus and foliar phosphorus.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- decrease of phosphorus soil addition and spraying with foliar phosphoruse1
- Outcome
- growth parameterse1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Most of growth parameters were enhanced with the decrease of phosphorus soil addition and spraying with foliar phosphorus.”
Claim · model-written summary
Phosphorus treatments significantly affected green pod and seed yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Treatmentse1
- Outcome
- green pods yield, seeds yielde1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Treatments have a significant effect on green pods yield, seeds yield, number of seeds per pod, protein %, protein yield and pod weight.”
Claim · model-written summary
Phosphorus treatments significantly affected seeds per pod and pod weight.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Treatmentse1
- Outcome
- number of seeds per pod, protein %, protein yield and pod weighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Treatments have a significant effect on green pods yield, seeds yield, number of seeds per pod, protein %, protein yield and pod weight.”
Claim · model-written summary
Phosphorus treatments significantly affected protein percentage and protein yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Treatmentse1
- Outcome
- protein %, protein yielde1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Treatments have a significant effect on green pods yield, seeds yield, number of seeds per pod, protein %, protein yield and pod weight.”
Claim · model-written summary
Phosphorus treatments significantly affected weight loss under room and cold storage.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Phosphorus treatmentse1
- Outcome
- weight loss %e1
- Setting
- room and cold storage conditionse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Phosphorus treatments have a significant effect on weight loss % at room and cold storage conditions.”
Claim · model-written summary
Color changes were more acute after five days at room temperature than in cold storage.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- Color changes as b* and c*e1
- Direction
- more acutee1
- Comparator
- cold storagee1
- Setting
- room temperaturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cowpea (Vigna unguiculata L. Walp.) plants”
e1“Color changes as b* and c* at the case of storage at room temperature (28.5 ±5°C) were more acute after 5 days of storage than cold storage (14±1°C) conditions.”
The same questions in other papers
phosphorus · growth · Vigna unguiculata (cowpea)Results differ
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- positive
- positive
- negative
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See all 56 papers →application · growth · Vigna unguiculata (cowpea)Positive and negative results
52 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- no effect
- negative
55 papers more in this group
See all 59 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.