Paper · 2018 · Journal of Zankoy Sulaimani - Part A

Effect of level combinations of nitrogen and phosphorus fertilizers on growth and yield of faba bean (Vicia faba L.) in a calcareous soil from Sulaimani province

Ghafoor Mam-Rasul

9
claims
18
verbatim quotes
5
citations
2
research areas
✓
Open access · cc-by-nc-sa

Abstract

A field experiment was carried out in the Research Farm of the College of Agricultural Sciences, University of Sulaimani, Kurdistan Region of Iraq, during the winter season of 2014 to evaluate the effect of levels combinations of nitrogen and phosphorus fertilization on growth and yield of faba bean( Vicia faba L.). The experiment was arranged in arandomized completeblock design (RCBD) with three replicates. The results indicate that the nitrogen and phosphorus fertilizers had no significant effect on most studied growth characteristics of faba bean except for the plant height. The greatest plant height was observed from the application of 78 kg N ha-1and 200 kg P2O5 ha-1(T3) fertilizers. Chlorophyll content index (CCI) was not affected by the nitrogen and phosphorus fertilizer application. The highest chlorophyll content index was found under the application of 98 kg N ha-1 and 250 kg P2O5 ha-1 (T4) to the soil. Statistical analysis revealed that nitrogen and phosphorus fertilizers had no significant effect on the value of harvest index, the highest value of harvest index 43.93% was shown from the application of 98 kg N ha-1 and 250 kg P2O5 ha-1 (T4). Phosphorus application had no significant effect on phosphorus use efficiency (PUE). The lower phosphorus use efficiency (PUE) was observed at highest P rates application, the maximum PUE (86.40) was observed from the combination of 58 kg N ha-1 with 150 P2O2 kg ha-1 (T2), and it decreased at higher P rate application to (61.22).

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 9

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen and phosphorus fertilizers had no significant effect on most faba bean growth characteristics.

Taxon
faba beanVicia fabae0
Treatment
nitrogen and phosphorus fertilizerse0
Outcome
most studied growth characteristicse0
Direction
no significant effecte0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the nitrogen and phosphorus fertilizers had no significant effect on most studied growth characteristics of faba bean except for the plant height”

✓ located verbatim in the source · abstract, characters 438–583 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The greatest faba bean height occurred under the T3 fertilizer combination.

Taxon
faba beanVicia fabat0
Treatment
78 kg N ha-1and 200 kg P2O5 ha-1(T3)e0
Outcome
plant heighte0
Direction
greateste0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The greatest plant height was observed from the application of 78 kg N ha-1and 200 kg P2O5 ha-1(T3) fertilizers.”

✓ located verbatim in the source · abstract, characters 585–697 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen and phosphorus fertilizer application did not significantly change chlorophyll content index.

Taxon
faba beanVicia fabat0
Treatment
nitrogen and phosphorus fertilizer applicatione0
Outcome
Chlorophyll content indexe0
Direction
not affectede0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Chlorophyll content index (CCI) was not affected by the nitrogen and phosphorus fertilizer application.”

✓ located verbatim in the source · abstract, characters 698–801 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The highest chlorophyll content index occurred under T4 fertilization.

Taxon
faba beanVicia fabat0
Treatment
98 kg N ha-1 and 250 kg P2O5 ha-1 (T4)e0
Outcome
chlorophyll content indexe0
Direction
higheste0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest chlorophyll content index was found under the application of 98 kg N ha-1 and 250 kg P2O5 ha-1 (T4) to the soil.”

✓ located verbatim in the source · abstract, characters 802–926 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen and phosphorus fertilizers had no significant effect on harvest index.

Taxon
faba beanVicia fabat0
Treatment
nitrogen and phosphorus fertilizerse0
Outcome
harvest indexe0
Direction
no significant effecte0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“nitrogen and phosphorus fertilizers had no significant effect on the value of harvest index”

✓ located verbatim in the source · abstract, characters 962–1053 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum harvest index was 43.93% under T4 fertilization.

Taxon
faba beanVicia fabat0
Treatment
98 kg N ha-1 and 250 kg P2O5 ha-1 (T4)e0
Outcome
harvest indexe0
Direction
higheste0
Value
43.93%e0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest value of harvest index 43.93% was shown from the application of 98 kg N ha-1 and 250 kg P2O5 ha-1 (T4)”

✓ located verbatim in the source · abstract, characters 1055–1169 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Phosphorus application had no significant effect on phosphorus use efficiency.

Taxon
faba beanVicia fabat0
Treatment
Phosphorus applicatione0
Outcome
phosphorus use efficiencye0
Direction
no significant effecte0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phosphorus application had no significant effect on phosphorus use efficiency (PUE).”

✓ located verbatim in the source · abstract, characters 1171–1255 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum phosphorus use efficiency was 86.40 under the T2 combination.

Taxon
faba beanVicia fabat0
Treatment
58 kg N ha-1 with 150 P2O2 kg ha-1 (T2)e0
Outcome
PUEe0
Direction
maximume0
Value
86.40e0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the maximum PUE (86.40) was observed from the combination of 58 kg N ha-1 with 150 P2O2 kg ha-1 (T2)”

✓ located verbatim in the source · abstract, characters 1343–1443 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Phosphorus use efficiency declined to 61.22 at higher phosphorus rates.

Taxon
faba beanVicia fabat0
Treatment
higher P rate applicatione0
Outcome
phosphorus use efficiencye1
Direction
decreasede0
Value
61.22e0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“it decreased at higher P rate application to (61.22)”

✓ located verbatim in the source · abstract, characters 1449–1501 · show in text ↑
e1

“Phosphorus application had no significant effect on phosphorus use efficiency (PUE).”

✓ located verbatim in the source · abstract, characters 1171–1255 · show in text ↑
t0

“faba bean (Vicia faba L.)”

✓ located verbatim in the source · title, characters 91–116 · show in text ↑

nitrogen · yield · Vicia faba (faba bean)Results differ

49 papers: 42 positive, 7 negative or no effect

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

  1. positive
  2. no effect
  3. negative

45 papers more in this group

See all 49 papers →

phosphorus · nutrient: efficiency · Vicia faba (faba bean)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

1 paper in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

phosphorus · growth · Vicia faba (faba bean)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. positive
  3. positive

17 papers more in this group

See all 21 papers →

fertilization · physiology: pigments · Vicia faba (faba bean)Positive and negative results

21 papers: 20 positive, 1 negative or no effect

20 in the opposite direction

  1. positive
  2. positive
  3. positive

17 papers more in this group

See all 21 papers →

nitrogen · growth · Vicia faba (faba bean)Positive and negative results

26 papers: 21 positive, 5 negative or no effect

20 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. no effect
  3. negative

22 papers more in this group

See all 26 papers →

phosphorus · yield · Vicia faba (faba bean)Positive and negative results

68 papers: 63 positive, 5 negative or no effect

62 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

64 papers more in this group

See all 68 papers →

fertilization · growth · Vicia faba (faba bean)Positive and negative results

73 papers: 67 positive, 6 negative or no effect

5 papers in the same direction as this paper · 67 in the opposite direction

  1. positive
  2. positive
  3. positive

69 papers more in this group

See all 73 papers →

fertilization · yield · Vicia faba (faba bean)Positive and negative results

176 papers: 159 positive, 17 negative or no effect

16 papers in the same direction as this paper · 159 in the opposite direction

  1. positive
  2. positive
  3. positive

172 papers more in this group

See all 176 papers →

8 of 11 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.