Paper · 2011

Combat Degradation in Rain Fed Areas by Introducing New Drought Tolerant Crops in Egypt

Amr Shams

11
claims
11
verbatim quotes
21
citations
2
research areas
—
Not open access

Abstract

The Northern Coastal Region of Egypt is unique in its strategic, historical and environmental background. This region includes rain fed areas located in northern part of Sinai Peninsula. In Sinai Peninsula, the average rainfall decreases from North-East to the South-West. Degradation and Desertification threaten these areas and it is necessary to adopt innovative approaches to the use and management of such fragile resources. The major constraints which threaten sustainability in this area are disappearance of crop rotation due to cereal continuous (barley) and overgrazing in range lands, inadequacy of rain-fall in quantity and distribution, poor soil fertility, low crop productivity and wind erosion. Agriculture in these areas is highly correlated with rainfall therefore; plantations and horticultural crops cover only 10 km from the sea towards the South where rainfall ranged from 150 to 250mm/yr along the Mediterranean Sea starting from Rafah in the east to the Libyan borders in the West. The next 10 km towards the desert are very poor rangelands. Agricultural Development and Crop Intensification Research Project did effort to combat desertification through innovating cropping patterns in these areas by the introduction of some new crops tolerant in nature to drought, very pertinent to the Bedouin diet and their livestock. The project program included the introduction of Cassava and Quinoa crops In Sinai. To obtain optimum recommendation package to introduce cassava and quinoa in desert lands of Egypt. Cassava trials includes varietal responses to our environment which indicated superiority of Brazilian CV 1 over Indonesian CV K2. Cassava tuber and forage yield were the highest when stakes were planted at mid of April rather than the early planting (first of April) or late planting (first of May). Nutritional field trial revealed gradual increases in cassava tuber yield up to the heaviest 46.5Kg P O and 72Kg of K O, 25 2 respectively. The data indicate that there were decreases in HCN concentration in tuber tissue with increasing phosphorus or potassium up to the heaviest. Intercropping cassava with Nigerian cowpea achieved yield advantage by 71% more than growing cassava as solid. Quinoa also proved success in desert lands. Thirteen varieties were tested under two types of land preparation (till and no-till systems). Two short day varieties under no-till system were superior. In North-West Coastal plains (Matrooh Exp. Stn.), quinoa with one supplementary irrigation yielded better than under rainfall only (rainfall rate ranged from 100-150 mm/yr). seeding on flat gave more yield than on ridges. The yield of quinoa significantly increased with diminishing plant spacing from 20 to 15cm. there were also gradual reduction in seed yield/fed with delaying time of seeding starting from mid of November till mid of February. Reduction between the first and latter date was estimated to 60%.

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Claims 11

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Brazilian CV 1 outperformed Indonesian CV K2.

Material
Brazilian CV 1e0
Outcome
superioritye0
Direction
superioritye0
Comparator
Indonesian CV K2e0

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Cassava trials includes varietal responses to our environment which indicated superiority of Brazilian CV 1 over Indonesian CV K2”

✓ located verbatim in the source · abstract, characters 1530–1659 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mid-April planting gave the highest cassava tuber yield.

Treatment
mid of Aprile0
Outcome
tubere0
Direction
higheste0
Comparator
early planting (first of April) or late planting (first of May)e0

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Cassava tuber and forage yield were the highest when stakes were planted at mid of April rather than the early planting (first of April) or late planting (first of May)”

✓ located verbatim in the source · abstract, characters 1661–1829 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mid-April planting gave the highest cassava forage yield.

Treatment
mid of Aprile0
Outcome
forage yielde0
Direction
higheste0
Comparator
early planting (first of April) or late planting (first of May)e0

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Cassava tuber and forage yield were the highest when stakes were planted at mid of April rather than the early planting (first of April) or late planting (first of May)”

✓ located verbatim in the source · abstract, characters 1661–1829 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava tuber yield increased with P and K dose.

Treatment
46.5Kg P O and 72Kg of K O, 25 2e0
Outcome
tuber yielde0
Direction
increasese0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Nutritional field trial revealed gradual increases in cassava tuber yield up to the heaviest 46.5Kg P O and 72Kg of K O, 25 2 respectively”

✓ located verbatim in the source · abstract, characters 1831–1969 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher phosphorus or potassium reduced tuber HCN concentration.

Treatment
phosphorus or potassiume0
Outcome
HCN concentration in tuber tissuee0
Direction
decreasese0

Not reportedTaxonComparator

Verbatim

e0

“there were decreases in HCN concentration in tuber tissue with increasing phosphorus or potassium up to the heaviest”

✓ located verbatim in the source · abstract, characters 1994–2110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping cassava with Nigerian cowpea gave a 71% yield advantage.

Treatment
Intercropping cassava with Nigerian cowpeae0
Outcome
yield advantagee0
Direction
moree0
Value
71%e0
Comparator
growing cassava as solide0

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Intercropping cassava with Nigerian cowpea achieved yield advantage by 71% more than growing cassava as solid”

✓ located verbatim in the source · abstract, characters 2112–2221 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Two short-day quinoa varieties were superior under no-till.

Material
Two short day varietiese0
Treatment
no-till systeme0
Outcome
superiore0
Direction
superiore0

Not reportedTaxon

Verbatim

e0

“Two short day varieties under no-till system were superior”

✓ located verbatim in the source · abstract, characters 2362–2420 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Supplemental irrigation improved quinoa yield over rainfall only.

Treatment
one supplementary irrigatione0
Outcome
yieldede0
Direction
bettere0
Comparator
rainfall onlye0

Not reportedSetting

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

Chenopodium quinoa
Chenopodium quinoa · TaxonKurt Stueber · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“quinoa with one supplementary irrigation yielded better than under rainfall only (rainfall rate ranged from 100-150 mm/yr)”

✓ located verbatim in the source · abstract, characters 2472–2594 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flat seeding produced more quinoa yield than ridge seeding.

Treatment
seeding on flate0
Outcome
yielde0
Direction
moree0
Comparator
on ridgese0

Not reportedTaxon

Verbatim

e0

“seeding on flat gave more yield than on ridges”

✓ located verbatim in the source · abstract, characters 2596–2642 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Reducing quinoa spacing from 20 to 15cm significantly increased yield.

Treatment
15cme0
Outcome
yielde0
Direction
increasede0
Comparator
20e0

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

Chenopodium quinoa
Chenopodium quinoa · TaxonKurt Stueber · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The yield of quinoa significantly increased with diminishing plant spacing from 20 to 15cm”

✓ located verbatim in the source · abstract, characters 2644–2734 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delaying quinoa seeding reduced seed yield per feddan by 60% between mid-November and mid-February.

Treatment
delaying time of seedinge0
Outcome
seed yield/fede0
Direction
reductione0
Value
60%e0
Comparator
mid of Novembere0

Not reportedTaxon

Verbatim

e0

“there were also gradual reduction in seed yield/fed with delaying time of seeding starting from mid of November till mid of February. Reduction between the first and latter date was estimated to 60%”

✓ located verbatim in the source · abstract, characters 2736–2934 · show in text ↑

Vigna unguiculata · yield · Manihot esculenta (cassava)Positive and negative results

20 papers: 13 positive, 7 negative or no effect

12 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

16 papers more in this group

See all 20 papers →

intercropping · yield · Manihot esculenta (cassava)Results differ

78 papers: 48 positive, 30 negative or no effect

47 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

74 papers more in this group

See all 78 papers →

irrigation · yield · Chenopodium quinoa (quinoa)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.