Paper · 2011

EFFECT OF INTERCROPPING ON THE PERFORMANCE OF SOME SUMMER VEGETABLE CROPS GROWN UNDER DIFFERENT ROW ARRANGEMENTS

Nazir Hadidi; R. K. Sharaiha

10
claims
22
verbatim quotes
6
citations
1
research areas
—
Not open access

Abstract

This study was conducted in a private farm in Madaba region during 2007 summer growing season. The objectives of this study were to dete rmine the potential and response of some summer vegetable crops to intercropping system and to define the best combinations which yield highest production. Four vegetable crops namely bush bean, okra, lettuce and squash were planted in six combinations. Each combination was planted under four different row arrangements (1:1, 1:2, 2:1, 2:2) in the open field. Okra and lettuce gave higher significant yields when they were planted with bean under all row arrangements, where they gave an average increase in yield of 45% and 66%, respectively, over thei r sole crops. Additionally, the yield of okra was affected by the associated crops (bean, lettuce and squash). The least significant yield of okra was obtained when it was inte rcropped with squash under 1:2 row arrangement (5.5 ton ha¹). However, the other row arrangements of okra as it was planted with squash were on the same level of significance when compared to okra sole crop (7.01 ton ha¹). On the other hand, bean gave the highest significant yields when it was intercropped with lettuce and squash under all row arrangements. However, when bean was intercropped with okra, significantly highest yield (16.66 ton ha¹) was obtained under 2:1 row arrangement as com pared to okra yield sole crop (13.63 ton ha¹). For squash, significantly highest yields were obtained when it was intercropped with bean under 2:1 and 2:2 row arrangements as compared with squash yield sole crop. Moreover, in the squash / okra combination, yields under row arrangements of 1:1 and 1:2 were significantly less than squash yield sole crop. However, the other combinations under different row arrangements were intermediate in yields. Regarding the efficiency of intercropping as it was judged by LER, the results showed that almost all the intercropping combinations with their row arrangements tested gave LER values more than one indicating the superiority of intercropping over sole cropping.

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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Okra yield increased on average by 45% when planted with bean compared with its sole crop.

Treatment
planted with beane0
Interactor
beane0other
Outcome
yielde0
Direction
increasee0
Value
45%e0
Comparator
sole cropse0
Setting
private farm in Madaba regione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Okra and lettuce gave higher significant yields when they were planted with bean under all row arrangements, where they gave an average increase in yield of 45% and 66%, respectively, over thei r sole crops”

✓ located verbatim in the source · abstract, characters 498–704 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lettuce yield increased on average by 66% when planted with bean compared with its sole crop.

Taxon
lettuceLactuca sativae0
Treatment
planted with beane0
Interactor
beane0other
Outcome
yielde0
Direction
increasee0
Value
66%e0
Comparator
sole cropse0
Setting
private farm in Madaba regione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Okra and lettuce gave higher significant yields when they were planted with bean under all row arrangements, where they gave an average increase in yield of 45% and 66%, respectively, over thei r sole crops”

✓ located verbatim in the source · abstract, characters 498–704 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Okra intercropped with squash under the 1:2 row arrangement had the least significant yield, at 5.5 ton ha¹.

Treatment
intercropped with squash under 1:2 row arrangemente0
Interactor
squashe0other
Outcome
yielde0
Direction
leaste0
Value
5.5 ton ha¹e0
Setting
private farm in Madaba regione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The least significant yield of okra was obtained when it was intercropped with squash under 1:2 row arrangement (5.5 ton ha¹)”

✓ located after whitespace/quote normalisation · abstract, characters 803–929 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Okra intercropped with squash under the other row arrangements did not differ in yield from okra sole crop (7.01 ton ha¹).

Treatment
planted with squashe0
Interactor
squashe0other
Outcome
yielde2
Direction
same level of significancee0
Value
7.01 ton ha¹e0
Comparator
okra sole crope0
Setting
private farm in Madaba regione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“However, the other row arrangements of okra as it was planted with squash were on the same level of significance when compared to okra sole crop (7.01 ton ha¹)”

✓ located verbatim in the source · abstract, characters 931–1090 · show in text ↑
e2

“Additionally, the yield of okra was affected by the associated crops”

✓ located verbatim in the source · abstract, characters 706–774 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bean intercropped with lettuce and squash under all row arrangements had the highest significant yields.

Taxon
beane0
Treatment
intercropped with lettuce and squash under all row arrangementse0
Interactor
lettuceLactuca sativae0other
Second interactor
squashe0other
Outcome
yieldse0
Direction
higheste0
Setting
private farm in Madaba regione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Interactoren:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“On the other hand, bean gave the highest significant yields when it was intercropped with lettuce and squash under all row arrangements”

✓ located verbatim in the source · abstract, characters 1092–1227 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bean intercropped with okra under the 2:1 row arrangement had the highest significant yield, at 16.66 ton ha¹, above okra sole crop yield (13.63 ton ha¹).

Taxon
beane0
Treatment
intercropped with okrae0
Interactor
okraAbelmoschus esculentuse0other
Outcome
yielde0
Direction
higheste0
Value
16.66 ton ha¹e0
Qualifier
13.63 ton ha¹e0
Comparator
okra yield sole crope0
Setting
private farm in Madaba regione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · InteractorKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“However, when bean was intercropped with okra, significantly highest yield (16.66 ton ha¹) was obtained under 2:1 row arrangement as com pared to okra yield sole crop (13.63 ton ha¹)”

✓ located verbatim in the source · abstract, characters 1229–1411 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Squash intercropped with bean under the 2:1 and 2:2 row arrangements had the highest significant yields.

Taxon
squashe0
Treatment
intercropped with bean under 2:1 and 2:2 row arrangementse0
Interactor
beane0other
Outcome
yieldse0
Direction
higheste0
Comparator
squash yield sole crope0
Setting
private farm in Madaba regione1

Verbatim

e0

“For squash, significantly highest yields were obtained when it was intercropped with bean under 2:1 and 2:2 row arrangements as compared with squash yield sole crop”

✓ located verbatim in the source · abstract, characters 1413–1577 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Squash intercropped with okra under the 1:1 and 1:2 row arrangements had significantly lower yields than squash sole crop.

Taxon
squashe0
Treatment
in the squash / okra combinatione0
Interactor
okraAbelmoschus esculentuse0other
Outcome
yieldse0
Direction
lesse0
Comparator
squash yield sole crope0
Setting
private farm in Madaba regione1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Abelmoschus esculentus
Abelmoschus esculentus · InteractorKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Moreover, in the squash / okra combination, yields under row arrangements of 1:1 and 1:2 were significantly less than squash yield sole crop”

✓ located verbatim in the source · abstract, characters 1579–1719 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

The other squash and okra combinations under different row arrangements had yields intermediate between the two sole crops.

Taxon
summer vegetable cropst0
Treatment
other combinations under different row arrangementse0
Outcome
yieldse0
Direction
intermediatee0
Setting
private farm in Madaba regione1

Not reportedComparator

Verbatim

t0

“EFFECT OF INTERCROPPING ON THE PERFORMANCE OF SOME SUMMER VEGETABLE CROPS”

✓ located verbatim in the source · title, characters 0–73 · show in text ↑
e0

“However, the other combinations under different row arrangements were intermediate in yields”

✓ located verbatim in the source · abstract, characters 1721–1813 · show in text ↑
e1

“This study was conducted in a private farm in Madaba region during 2007 summer growing season”

✓ located verbatim in the source · abstract, characters 0–93 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Almost all intercropping combinations gave LER values above one, indicating the superiority of intercropping over sole cropping.

Taxon
summer vegetable cropst0
Outcome
LER valuese0
Direction
more than onee0
Qualifier
indicating the superiority of intercropping over sole croppinge0

Verbatim

t0

“EFFECT OF INTERCROPPING ON THE PERFORMANCE OF SOME SUMMER VEGETABLE CROPS”

✓ located verbatim in the source · title, characters 0–73 · show in text ↑
e0

“the results showed that almost all the intercropping combinations with their row arrangements tested gave LER values more than one indicating the superiority of intercropping over sole cropping”

✓ located verbatim in the source · abstract, characters 1882–2075 · show in text ↑

intercropping · yield · Phaseolus vulgaris (common bean)Results differ

67 papers: 37 positive, 30 negative or no effect

36 papers in the same direction as this paper · 29 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

63 papers more in this group

See all 67 papers →

intercropping · yield · Cucurbita (pumpkins)Positive and negative results

14 papers: 7 positive, 7 negative or no effect

6 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

10 papers more in this group

See all 14 papers →

intercropping · yield · Abelmoschus esculentus (okra)Positive and negative results

46 papers: 25 positive, 21 negative or no effect

20 papers in the same direction as this paper · 25 in the opposite direction

  1. positive
  2. negative
  3. positive

42 papers more in this group

See all 46 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.