Paper · 2023 · Alexandria Science Exchange Journal

The Effect of Intercropping Wheat Under Olive Trees on The Productivity and Quality of Olive Fruits

Amro Salama; Osama El Gammal; Mohamed Abdelhamied Attia

5
claims
7
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by-nc-sa

Abstract

This trial was carried out on olive trees grown in the private orchard, Siwa oasis, Matrouh governorate, Egypt, during 2017, 2018 seasons. Trees were planted at 5x5 meters apart in sandy soil and irrigated by a flood system from agricultural drainage canal. This study aimed at studying the effect of olive–wheat in intercropping system and the application of humic acid on tree growth, yield and fruit quality of "Manzanillo" olive. The experiment was designed as a randomized complete block design with five replicates for each treatment and each replicate was represented by one tree. The results showed that vegetative growth i.e. tree dimensions, shoot growth, leaf characteristics, blooming and yield recorded the highest values in intercropping olive fertilized (30g) humic acid with wheat crop fertilized (4kg) humic acid/fed treatment. Furthermore intercropped olive with wheat produced less vegetative growth, blooming and yields of Manzanillo olive trees as compared with monoculture. Moreover, high level treatment of humic acid increased vegetative growth, blooming and yield of Manzanillo olive trees as compared with non-humic acid treatment in both seasons. The intercropping Manzanillo of olive trees treated with humic acid with wheat plants fertilized with humic acid system could be valuable for sustainable farming a source of income to the farmers in this region.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. Read at the source ↗

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping olive and wheat, both fertilized with humic acid, gave the highest vegetative growth of olive.

Taxon
oliveOlea europaeae1
Material
Manzanilloe2
Treatment
intercropping olive fertilized (30g) humic acid with wheat crop fertilized (4kg) humic acid/fede1
Outcome
vegetative growthe1
Direction
highest valuese1
Setting
Siwa oasis, Matrouh governorate, Egypte0

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“olive trees grown in the private orchard, Siwa oasis, Matrouh governorate, Egypt”

✓ located verbatim in the source · abstract, characters 30–110 · show in text ↑
e1

“vegetative growth i.e. tree dimensions, shoot growth, leaf characteristics, blooming and yield recorded the highest values in intercropping olive fertilized (30g) humic acid with wheat crop fertilized (4kg) humic acid/fed treatment”

✓ located verbatim in the source · abstract, characters 612–843 · show in text ↑
e2

“intercropped olive with wheat produced less vegetative growth, blooming and yields of Manzanillo olive trees as compared with monoculture”

✓ located verbatim in the source · abstract, characters 857–994 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping olive and wheat, both fertilized with humic acid, gave the highest blooming and yield of olive.

Taxon
oliveOlea europaeae1
Treatment
intercropping olive fertilized (30g) humic acid with wheat crop fertilized (4kg) humic acid/fede1
Outcome
blooming and yielde1
Direction
highest valuese1

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“vegetative growth i.e. tree dimensions, shoot growth, leaf characteristics, blooming and yield recorded the highest values in intercropping olive fertilized (30g) humic acid with wheat crop fertilized (4kg) humic acid/fed treatment”

✓ located verbatim in the source · abstract, characters 612–843 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropped olive with wheat produced less vegetative growth, blooming and yield than monoculture.

Taxon
olive treesOlea europaeae2
Material
Manzanilloe2
Treatment
intercropped olive with wheate2
Outcome
vegetative growth, blooming and yieldse2
Direction
lesse2
Comparator
monoculturee2

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“intercropped olive with wheat produced less vegetative growth, blooming and yields of Manzanillo olive trees as compared with monoculture”

✓ located verbatim in the source · abstract, characters 857–994 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High-level humic acid increased vegetative growth, blooming and yield of Manzanillo olive compared with no humic acid, in both seasons.

Taxon
olive treesOlea europaeae3
Material
Manzanilloe3
Treatment
high level treatment of humic acide3
Outcome
vegetative growth, blooming and yielde3
Direction
increasede3
Qualifier
in both seasonse3
Comparator
non-humic acid treatmente3

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“high level treatment of humic acid increased vegetative growth, blooming and yield of Manzanillo olive trees as compared with non-humic acid treatment in both seasons”

✓ located verbatim in the source · abstract, characters 1006–1172 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Olive-wheat intercropping with humic acid could be valuable for sustainable farming and income for growers in this region.

Taxon
olive treesOlea europaeae4
Outcome
sustainable farminge4

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e4

“The intercropping Manzanillo of olive trees treated with humic acid with wheat plants fertilized with humic acid system could be valuable for sustainable farming a source of income to the farmers in this region”

✓ located verbatim in the source · abstract, characters 1174–1384 · show in text ↑

Triticum aestivum · growth · Olea europaea (common olive)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

intercropping · yield · Olea europaea (common olive)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 reporting no difference from an alternative

  1. no effect
  2. no effect
See all 3 papers →

other · yield · Olea europaea (common olive)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

fertilization · growth · Olea europaea (common olive)Positive and negative results

38 papers: 33 positive, 5 negative or no effect

32 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

34 papers more in this group

See all 38 papers →

fertilization · yield · Olea europaea (common olive)Positive and negative results

38 papers: 34 positive, 4 negative or no effect

33 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

34 papers more in this group

See all 38 papers →

other · growth · Olea europaea (common olive)Results agree

20 papers: 20 positive, 0 negative or no effect

19 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.