Abstract
As mono cropping practice limited sorghum productivity in Abergelle, an experiment on sorghum/cowpea intercropping was conducted in 2014 cropping season to evaluate the effect of density of the intercropped cowpea and nitrogen fertilizer rates on yield and yield related traits of sorghum and cowpea as well as to determine the appropriate plant density of cowpea and nitrogen fertilizer rate that maximize the productivity of the intercrop system.Treatments consisted of factorial combinations of three cowpea densities (50, 75 and 100%) and four levels of nitrogen rates (0, 20.5, 41 and 61.5kg N ha -1 ) accompanied with sole sorghum and sole cowpea were carried out in Randomized Complete Block Design (RCBD) with three replications.The analyzed result showed that grain yields of the component crops were highly significantly affected (P<0.01)due to interaction effect.The highest grain yield of sorghum (1769.10kg ha -1 ) and cowpea (975.67 kg ha -1 ) was obtained from the combination of 61.5 kg N ha -1 with 100% sole cowpea plant density and when 41 kg N ha -1 combined with 75% of sole cowpea plant density, respectively.The land equivalent ratio (LER) and gross monetary value (GMV) showed that sorghum/cowpea intercropping was highly superior to and more advantageous over sole cropping.The highest values of LER (1.76) and GMV (14313.20 ETB ha -1 ) were obtained from combination of 41 kg N ha -1 and 75% cowpea plant density.This is, therefore, combination of 41 kg N ha -1 and 75% sole cowpea plant density can be recommended for farmers of the study area to improve sorghum productivity and the cropping system at large.
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 5
Claim · model-written summary
Sorghum grain yield was highest at 1769.10kg ha -1 with 61.5 kg N ha -1 and 100% cowpea density.
- Treatment
- 61.5 kg N ha -1 with 100% sole cowpea plant densitye0
- Outcome
- grain yield of sorghume0
- Direction
- higheste0
- Value
- 1769.10kg ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield of sorghum (1769.10kg ha -1 ) and cowpea (975.67 kg ha -1 ) was obtained from the combination of 61.5 kg N ha -1 with 100% sole cowpea plant density and when 41 kg N ha -1 combined with 75% of sole cowpea plant density, respectively.”
Claim · model-written summary
Cowpea grain yield was highest at 975.67 kg ha -1 with 41 kg N ha -1 and 75% cowpea density.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- 41 kg N ha -1 combined with 75% of sole cowpea plant densitye0
- Outcome
- cowpeae0
- Direction
- higheste0
- Value
- 975.67 kg ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield of sorghum (1769.10kg ha -1 ) and cowpea (975.67 kg ha -1 ) was obtained from the combination of 61.5 kg N ha -1 with 100% sole cowpea plant density and when 41 kg N ha -1 combined with 75% of sole cowpea plant density, respectively.”
Claim · model-written summary
Intercropping had a higher land equivalent ratio than sole cropping, reaching 1.76 at 41 kg N ha -1 and 75% cowpea density.
- Taxon
- sorghum/cowpeaVigna unguiculata
Sorghume0 - Treatment
- sorghum/cowpea intercroppinge0
- Outcome
- land equivalent ratio (LER)e0
- Direction
- higheste0
- Value
- 1.76e0
- Qualifier
- 41 kg N ha -1 and 75% cowpea plant densitye0
- Comparator
- sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The land equivalent ratio (LER) and gross monetary value (GMV) showed that sorghum/cowpea intercropping was highly superior to and more advantageous over sole cropping.The highest values of LER (1.76) and GMV (14313.20 ETB ha -1 ) were obtained from combination of 41 kg N ha -1 and 75% cowpea plant density.”
Claim · model-written summary
Intercropping had greater gross monetary value than sole cropping, reaching 14313.20 ETB ha -1 at 41 kg N ha -1 and 75% cowpea density.
- Taxon
- sorghum/cowpeaVigna unguiculataSorghume0
- Treatment
- sorghum/cowpea intercroppinge0
- Outcome
- gross monetary value (GMV)e0
- Direction
- higheste0
- Value
- 14313.20 ETB ha -1e0
- Qualifier
- 41 kg N ha -1 and 75% cowpea plant densitye0
- Comparator
- sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The land equivalent ratio (LER) and gross monetary value (GMV) showed that sorghum/cowpea intercropping was highly superior to and more advantageous over sole cropping.The highest values of LER (1.76) and GMV (14313.20 ETB ha -1 ) were obtained from combination of 41 kg N ha -1 and 75% cowpea plant density.”
Claim · model-written summary
The authors recommend 41 kg N ha -1 and 75% cowpea density for farmers in the study area.
- Outcome
- combination of 41 kg N ha -1 and 75% sole cowpea plant densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of 41 kg N ha -1 and 75% sole cowpea plant density can be recommended for farmers of the study area to improve sorghum productivity”
The same questions in other papers
Sorghum · yield · Vigna unguiculata (cowpea)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
6 papers more in this group
See all 10 papers →Vigna unguiculata · yield · SorghumPositive and negative results
39 papers in the same direction as this paper · 7 in the opposite direction · 2 reporting no difference from an alternative
- positive
- negative
- negative
45 papers more in this group
See all 49 papers →intercropping · yield · Vigna unguiculata (cowpea)Results differ
62 papers in the same direction as this paper · 33 in the opposite direction · 7 reporting no difference from an alternative
- no effect
- negative
- positive
99 papers more in this group
See all 103 papers →intercropping · yield · SorghumResults differ
117 papers in the same direction as this paper · 42 in the opposite direction · 5 reporting no difference from an alternative
- negative
- positive
- negative
161 papers more in this group
See all 165 papers →density · yield · SorghumPositive and negative results
82 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
94 papers more in this group
See all 98 papers →nitrogen · yield · SorghumPositive and negative results
263 papers in the same direction as this paper · 22 in the opposite direction · 4 reporting no difference from an alternative
- negative
- negative
- negative
286 papers more in this group
See all 290 papers →density · organism · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- positive
nitrogen · organism · Vigna unguiculata (cowpea)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.