Paper · 2015

Evaluation of Nitrogen Levels and Application Methods with or without compost on Yield and Quality of Peanut under the Newly Reclaimed Soils.

Hanan S. Siam; S.A.Z. Mahmoud; A. S. Taalab; et al.

13
claims
24
verbatim quotes
8
citations
2
research areas
—
Not open access

Abstract

Two field experiments were conducted to study the effect of levels of nitrogen and efficient application method in the production of peanut (Arachis hypogaea L.). Using four levels of urea soil application (0, 10, 20 and 40 kg/acre) and four levels of urea foliar application (0, 1.25, 2.5 and 5%), the experiment was laid out in a split-plot design, where the main plots were used to determine the effective method of application and the sub plot used to detect the influence of N levels on the yield. Two different application methods (soil application and foliar spray) treated with or without organic compost. The average data obtained after two years of study indicated an increase in seeds yield, pods yield and weight of 100 seeds irrespective of the method used of urea application. The seeds yield increased from 350 to 790 kg/acre in the plots that were treated with 40 kg N/acre compared with the control plots. The soil application method, producing an average seeds yield of 927 kg/acre was found to be superior to the foliar spray method with an average seeds yield of 859 kg/acre. Also, these results indicated that addition of compost increased weight of seeds yield, pods yield and weight of 100seeds as compared to plants which untreated with compost. Also, there was a markedly increase yield parameters, as well as chlorophyll (a+b) except proline decrease when addition of compost. Also, increasing levels of nitrogen either soil application or foliar application gradually increased all mentioned parameters. Furthermore increasing of N rate as foliar spraying with compost fertilizer was more effective and increased N,p,k content and quality parameters ,i.e. oil and protein in seeds peanut plants if compared to the other tre atments . In addition the soil pH and Ec i n soil after pe anut h arvest de crease value were increase rate of N fertilizer in the presence of compost fertilizer. In regard to the nutrient content, it can be interfered that soil application and foliar spray urea application increased the content of some nutrients, oil and protein as compared with control.

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 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Urea application increased peanut seed yield, pod yield, and 100-seed weight.

Treatment
urea applicatione0
Outcome
seeds yield, pods yield and weight of 100 seedse0
Direction
increasee0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“an increase in seeds yield, pods yield and weight of 100 seeds irrespective of the method used of urea application”

✓ located verbatim in the source · abstract, characters 675–789 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil application of 40 kg N/acre raised seed yield from 350 to 790 kg/acre versus control.

Treatment
40 kg N/acree0
Outcome
seeds yielde0
Direction
increasede0
Value
790 kg/acree0
Qualifier
350e0
Comparator
control plotse0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The seeds yield increased from 350 to 790 kg/acre in the plots that were treated with 40 kg N/acre compared with the control plots.”

✓ located verbatim in the source · abstract, characters 791–922 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil urea application yielded more seeds than foliar spray.

Treatment
soil application methode0
Outcome
seeds yielde0
Direction
superiore0
Value
927 kg/acree0
Qualifier
859 kg/acree0
Comparator
foliar spray methode0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The soil application method, producing an average seeds yield of 927 kg/acre was found to be superior to the foliar spray method with an average seeds yield of 859 kg/acre.”

✓ located verbatim in the source · abstract, characters 923–1095 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost increased seed yield, pod yield, and 100-seed weight relative to no compost.

Treatment
composte0
Outcome
weight of seeds yield, pods yield and weight of 100seedse0
Direction
increasede0
Comparator
plants which untreated with composte0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“addition of compost increased weight of seeds yield, pods yield and weight of 100seeds as compared to plants which untreated with compost”

✓ located verbatim in the source · abstract, characters 1131–1268 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost increased peanut chlorophyll (a+b).

Treatment
composte0
Outcome
chlorophyll (a+b)e0
Direction
increasee0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“there was a markedly increase yield parameters, as well as chlorophyll (a+b) except proline decrease when addition of compost”

✓ located verbatim in the source · abstract, characters 1276–1401 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Compost decreased peanut proline.

Treatment
composte0
Outcome
prolinee0
Direction
decreasee0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“chlorophyll (a+b) except proline decrease when addition of compost”

✓ located verbatim in the source · abstract, characters 1335–1401 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing soil-applied nitrogen raised the reported yield and physiological parameters.

Treatment
soil applicatione0
Outcome
all mentioned parameterse0
Direction
increasede0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“increasing levels of nitrogen either soil application or foliar application gradually increased all mentioned parameters”

✓ located verbatim in the source · abstract, characters 1409–1529 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing foliar-applied nitrogen raised the reported yield and physiological parameters.

Treatment
foliar applicatione0
Outcome
all mentioned parameterse0
Direction
increasede0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“increasing levels of nitrogen either soil application or foliar application gradually increased all mentioned parameters”

✓ located verbatim in the source · abstract, characters 1409–1529 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing foliar nitrogen with compost increased seed N, P, and K content compared with other treatments.

Treatment
increasing of N rate as foliar spraying with compost fertilizere0
Outcome
N,p,k contente0
Direction
increasede0
Comparator
other tre atmentse0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“increasing of N rate as foliar spraying with compost fertilizer was more effective and increased N,p,k content and quality parameters ,i.e. oil and protein in seeds peanut plants if compared to the other tre atments”

✓ located verbatim in the source · abstract, characters 1543–1758 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing foliar nitrogen with compost increased peanut seed oil and protein relative to other treatments.

Treatment
increasing of N rate as foliar spraying with compost fertilizere0
Outcome
oil and protein in seedse0
Direction
increasede0
Comparator
other tre atmentse0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“increasing of N rate as foliar spraying with compost fertilizer was more effective and increased N,p,k content and quality parameters ,i.e. oil and protein in seeds peanut plants if compared to the other tre atments”

✓ located verbatim in the source · abstract, characters 1543–1758 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Soil pH and EC after peanut harvest declined with increasing N in the presence of compost.

Treatment
increase rate of N fertilizer in the presence of compost fertilizere0
Outcome
soil pH and Ece0
Direction
de creasee0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“soil pH and Ec i n soil after pe anut h arvest de crease value were increase rate of N fertilizer in the presence of compost fertilizer”

✓ located verbatim in the source · abstract, characters 1777–1912 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil urea application increased nutrient, oil, and protein content versus control.

Treatment
soil applicatione0
Outcome
content of some nutrients, oil and proteine0
Direction
increasede0
Comparator
controle0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“soil application and foliar spray urea application increased the content of some nutrients, oil and protein as compared with control”

✓ located verbatim in the source · abstract, characters 1975–2107 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar urea application increased nutrient, oil, and protein content versus control.

Treatment
foliar spray urea applicatione0
Outcome
content of some nutrients, oil and proteine0
Direction
increasede0
Comparator
controle0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“soil application and foliar spray urea application increased the content of some nutrients, oil and protein as compared with control”

✓ located verbatim in the source · abstract, characters 1975–2107 · show in text ↑
t0

“peanut”

✓ located after whitespace/quote normalisation · title, characters 102–108 · show in text ↑

nitrogen · yield · Arachis hypogaea (peanut)Results differ

145 papers: 125 positive, 20 negative or no effect

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

  1. positive
  2. no effect
  3. negative

141 papers more in this group

See all 145 papers →

nitrogen · quality: protein · Arachis hypogaea (peanut)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

4 papers more in this group

See all 8 papers →

application · quality: protein · Arachis hypogaea (peanut)Positive and negative results

21 papers: 20 positive, 1 negative or no effect

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

  1. positive
  2. no effect
  3. positive

17 papers more in this group

See all 21 papers →

nitrogen · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

24 papers: 22 positive, 2 negative or no effect

21 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

20 papers more in this group

See all 24 papers →

fertilization · physiology: pigments · Arachis hypogaea (peanut)Positive and negative results

36 papers: 35 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

32 papers more in this group

See all 36 papers →

application · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

45 papers: 42 positive, 3 negative or no effect

41 papers in the same direction as this paper · 3 in the opposite direction

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

41 papers more in this group

See all 45 papers →

fertilization · quality: protein · Arachis hypogaea (peanut)Positive and negative results

63 papers: 61 positive, 2 negative or no effect

60 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. no effect
  3. negative

59 papers more in this group

See all 63 papers →

fertilization · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

153 papers: 147 positive, 6 negative or no effect

146 papers in the same direction as this paper · 6 in the opposite direction

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

149 papers more in this group

See all 153 papers →

8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.