Paper · 2015 · International Journal of Agriculture Sciences

Irrigated chickpea's symbiotic efficiency, growth and productivity as affected by foliar application of urea.

Neelam Aggarwal; Gurpreet Singh; Hardev Ram; et al.

5
claims
10
verbatim quotes
6
citations
2
research areas
✓
Open access

Abstract

Nitrogen (N) nourishment in legumes is essential for achieving greater productivity as biological nitrogen fixation by nodules in these crops ceases towards maturity. This study was conducted to elucidate the response of chickpea to foliar application of N through urea at differ-ent growth stages under irrigated conditions of Punjab, India. Plant nodule numbers, nodule dry weight and leghaemoglobin content increased significantly with foliar spray of 2% urea at different growth stages of crop over unsprayed control. Chlorophyll kinetics and highest quantum efficiency of Photosystem II was recorded with foliar spray of 2% urea at pod initiation stage. Yield attributes such as pods/plant improved significantly with 2% foliar spray of urea at different growth stages over no spray treatment. Foliar spray of urea (2%) at pod initiation stage recorded significantly higher grain yield thereby recorded highest gross returns, net returns and benefit cost ratio over unsprayed control.

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Claims 5

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar 2% urea significantly increased chickpea nodule number, nodule dry weight and leghaemoglobin content over unsprayed control.

Taxon
chickpeaCicer arietinume1
Organ / stage
nodulee0
Treatment
foliar spray of 2% ureae0
Outcome
Plant nodule numbers, nodule dry weight and leghaemoglobin contente0
Direction
increasede0
Comparator
unsprayed controle0

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

Cicer arietinum
Cicer arietinum · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Plant nodule numbers, nodule dry weight and leghaemoglobin content increased significantly with foliar spray of 2% urea at different growth stages of crop over unsprayed control.”

✓ located verbatim in the source · abstract, characters 343–521 · show in text ↑
e1

“response of chickpea”

✓ located verbatim in the source · abstract, characters 209–229 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar 2% urea at pod initiation produced the recorded chlorophyll kinetics and highest Photosystem II quantum efficiency.

Taxon
chickpeaCicer arietinume1
Organ / stage
pod initiation stagee0
Treatment
foliar spray of 2% ureae0
Outcome
Chlorophyll kinetics and highest quantum efficiency of Photosystem IIe0

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

Cicer arietinum
Cicer arietinum · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Chlorophyll kinetics and highest quantum efficiency of Photosystem II was recorded with foliar spray of 2% urea at pod initiation stage.”

✓ located verbatim in the source · abstract, characters 522–658 · show in text ↑
e1

“response of chickpea”

✓ located verbatim in the source · abstract, characters 209–229 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar 2% urea significantly improved chickpea pods per plant over no spray at different stages.

Taxon
chickpeaCicer arietinume1
Treatment
2% foliar spray of ureae0
Outcome
pods/plante0
Direction
improvede0
Comparator
no spray treatmente0

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

Cicer arietinum
Cicer arietinum · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“pods/plant improved significantly with 2% foliar spray of urea at different growth stages over no spray treatment”

✓ located verbatim in the source · abstract, characters 684–797 · show in text ↑
e1

“response of chickpea”

✓ located verbatim in the source · abstract, characters 209–229 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar 2% urea at pod initiation significantly increased chickpea grain yield over unsprayed control.

Taxon
chickpeaCicer arietinume1
Treatment
Foliar spray of urea (2%) at pod initiation stagee0
Outcome
grain yielde0
Direction
highere0
Comparator
unsprayed controle0

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

Cicer arietinum
Cicer arietinum · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar spray of urea (2%) at pod initiation stage recorded significantly higher grain yield thereby recorded highest gross returns, net returns and benefit cost ratio over unsprayed control.”

✓ located verbatim in the source · abstract, characters 799–989 · show in text ↑
e1

“response of chickpea”

✓ located verbatim in the source · abstract, characters 209–229 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar 2% urea at pod initiation gave the highest gross and net returns and benefit cost ratio over unsprayed control.

Taxon
chickpeaCicer arietinume1
Treatment
Foliar spray of urea (2%) at pod initiation stagee0
Outcome
gross returns, net returns and benefit cost ratioe0
Direction
higheste0
Comparator
unsprayed controle0

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

Cicer arietinum
Cicer arietinum · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Foliar spray of urea (2%) at pod initiation stage recorded significantly higher grain yield thereby recorded highest gross returns, net returns and benefit cost ratio over unsprayed control.”

✓ located verbatim in the source · abstract, characters 799–989 · show in text ↑
e1

“response of chickpea”

✓ located verbatim in the source · abstract, characters 209–229 · show in text ↑

nitrogen · symbiosis · Cicer arietinum (chickpea)Results differ

16 papers: 9 positive, 7 negative or no effect

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

  1. negative
  2. negative
  3. no effect

12 papers more in this group

See all 16 papers →

nitrogen · yield · Cicer arietinum (chickpea)Results differ

102 papers: 93 positive, 9 negative or no effect

92 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. negative
  3. no effect

98 papers more in this group

See all 102 papers →

application · yield · Cicer arietinum (chickpea)Positive and negative results

177 papers: 173 positive, 4 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

173 papers more in this group

See all 177 papers →

application · symbiosis · Cicer arietinum (chickpea)Results agree

18 papers: 18 positive, 0 negative or no effect

17 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

14 papers more in this group

See all 18 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.