Paper · 2021 · Egyptian Journal of Chemistry

IMPROVING SOME IRRIGATION EFFICIENCYS, SOIL FERTILITY, YIELD AND QUALITY OF WHEAT UNDER DEFICIT IRRIGATION BY INTEGRATED N-FERTILIZATION

El-Sayed Okasha

12
claims
27
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

One of the most agricultural strategiesis improving irrigation and fertilization. Two field experiment were conducted for study the effect of deficit irrigation strategy and integrated N-fertilization on the water application efficiencies, soil organic matter content, soil electrical conductivity, yield and quality of wheat were investigated under arid and sandy soils in Egypt and field experiments were conducted during 2018/2019 and 2019/2020 at the Research Farm of National Research Center (NRC). Water application efficiency and the average of soil organic matter content were increased by increasing the amount of organic fertilizers applied and decreased by increasing the volume of applied water but the average of electrical conductivity of soil were decreased by increasing the amount of organic fertilizers applied and increasing the volume of applied water. The values of the grain yield “GYwheat” and protein content “PCwheat“and carbohydrates content “CCwheat” were increased by increasing the amount of organic N-fertilizers applied up to 50% and they decreased with the continued increase in organic N-fertilizers addition. Although most of the characteristics, especially crop yield, decrease with the decrease in the amount of added irrigation water, in this study there were no significant differences when irrigation with 100% or 80% of full irrigation( FI), so a decrease of 80% of FI may not have resulted in any effect on the moisture stress, on the contrary, most of the studied characteristics were slightly higher when irrigation by 80% FI than full irrigation. In spite of the highest values of the water productivity of the wheat crop, it was at irrigation with 60% of the total irrigation, but there were high significant differences in the values of the higher productivity when irrigation with 80% of FI with adding 50% organic N-fertilizers with 50% mineral N-fertilizers. Finally, the results of the study concluded that, the necessity of relying on organic nitrogen fertilization in addition to mineral nitrogen fertilization at 50% organic to 50% mineral in addition to the possibility of irrigation at 80% of full irrigation, i.e. saving 20% of irrigation water without any significant impact on the productivity and quality characteristics of wheat under arid and sandy soils conditions in Egypt.

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Claims 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Water application efficiency and soil organic matter content increased as the amount of organic fertilizer applied increased.

Treatment
organic fertilizers appliede0
Outcome
Water application efficiency and the average of soil organic matter contente0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“Water application efficiency and the average of soil organic matter content were increased by increasing the amount of organic fertilizers applied and decreased by increasing the volume of applied water”

✓ located verbatim in the source · abstract, characters 504–706 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water application efficiency and soil organic matter content decreased as the volume of applied water increased.

Treatment
volume of applied watere0
Outcome
Water application efficiency and the average of soil organic matter contente0
Direction
decreasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“Water application efficiency and the average of soil organic matter content were increased by increasing the amount of organic fertilizers applied and decreased by increasing the volume of applied water”

✓ located verbatim in the source · abstract, characters 504–706 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil electrical conductivity decreased as the amount of organic fertilizer applied increased.

Treatment
organic fertilizers appliede0
Outcome
electrical conductivity of soile0
Direction
decreasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“the average of electrical conductivity of soil were decreased by increasing the amount of organic fertilizers applied and increasing the volume of applied water”

✓ located verbatim in the source · abstract, characters 711–871 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil electrical conductivity decreased as the volume of applied water increased.

Treatment
volume of applied watere0
Outcome
electrical conductivity of soile0
Direction
decreasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“the average of electrical conductivity of soil were decreased by increasing the amount of organic fertilizers applied and increasing the volume of applied water”

✓ located verbatim in the source · abstract, characters 711–871 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Wheat grain yield increased with organic N fertilizer up to 50% and decreased with continued increase.

Treatment
organic N-fertilizerse1
Outcome
grain yielde0
Direction
increasede1
Value
up to 50%e1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“grain yield”

✓ located verbatim in the source · abstract, characters 891–902 · show in text ↑
e1

“increased by increasing the amount of organic N-fertilizers applied up to 50% and they decreased with the continued increase in organic N-fertilizers addition”

✓ located verbatim in the source · abstract, characters 983–1141 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Wheat protein content increased with organic N fertilizer up to 50% and decreased with continued increase.

Treatment
organic N-fertilizerse1
Outcome
protein contente0
Direction
increasede1
Value
up to 50%e1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“protein content”

✓ located verbatim in the source · abstract, characters 917–932 · show in text ↑
e1

“increased by increasing the amount of organic N-fertilizers applied up to 50% and they decreased with the continued increase in organic N-fertilizers addition”

✓ located verbatim in the source · abstract, characters 983–1141 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Wheat carbohydrates content increased with organic N fertilizer up to 50% and decreased with continued increase.

Treatment
organic N-fertilizerse1
Outcome
carbohydrates contente0
Direction
increasede1
Value
up to 50%e1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“carbohydrates content”

✓ located verbatim in the source · abstract, characters 946–967 · show in text ↑
e1

“increased by increasing the amount of organic N-fertilizers applied up to 50% and they decreased with the continued increase in organic N-fertilizers addition”

✓ located verbatim in the source · abstract, characters 983–1141 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Irrigating wheat at 80% of full irrigation saved 20% of irrigation water without any significant impact on productivity and quality characteristics under arid sandy soils in Egypt.

Treatment
irrigation at 80% of full irrigatione0
Outcome
productivity and quality characteristicse0
Direction
without any significant impacte0
Comparator
full irrigatione0
Setting
Egypte0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“the possibility of irrigation at 80% of full irrigation, i.e. saving 20% of irrigation water without any significant impact on the productivity and quality characteristics of wheat under arid and sandy soils conditions in Egypt”

✓ located verbatim in the source · abstract, characters 2108–2335 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Most studied characteristics were slightly higher with 80% of full irrigation than with full irrigation.

Treatment
irrigation by 80% FIe0
Outcome
most of the studied characteristicse0
Direction
slightly highere0
Comparator
full irrigatione0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“most of the studied characteristics were slightly higher when irrigation by 80% FI than full irrigation”

✓ located verbatim in the source · abstract, characters 1486–1589 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Water productivity of the wheat crop was highest with irrigation at 60% of the total irrigation.

Treatment
irrigation with 60% of the total irrigatione0
Outcome
water productivitye0
Direction
highest valuese0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“In spite of the highest values of the water productivity of the wheat crop, it was at irrigation with 60% of the total irrigation”

✓ located verbatim in the source · abstract, characters 1591–1720 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Productivity was significantly higher with 80% of full irrigation plus 50% organic and 50% mineral N fertilizer.

Treatment
irrigation with 80% of FI with adding 50% organic N-fertilizers with 50% mineral N-fertilizerse0
Outcome
higher productivitye0
Direction
highere0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“there were high significant differences in the values of the higher productivity when irrigation with 80% of FI with adding 50% organic N-fertilizers with 50% mineral N-fertilizers”

✓ located verbatim in the source · abstract, characters 1726–1906 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude that 50% organic plus 50% mineral nitrogen fertilization should be relied on for wheat.

Outcome
organic nitrogen fertilization in addition to mineral nitrogen fertilization at 50% organic to 50% minerale0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“WHEAT”

✓ located verbatim in the source · title, characters 76–81 · show in text ↑
e0

“the necessity of relying on organic nitrogen fertilization in addition to mineral nitrogen fertilization at 50% organic to 50% mineral”

✓ located verbatim in the source · abstract, characters 1958–2092 · show in text ↑

irrigation · quality: general · Triticum aestivum (wheat)Positive and negative results

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fertilization · soil: chemistry · Triticum aestivum (wheat)Positive and negative results

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irrigation · yield · Triticum aestivum (wheat)Positive and negative results

989 papers: 798 positive, 191 negative or no effect

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nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

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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.