Paper · 2023 · Pollution Research

EFFICACY OF NEEM COATED UREA THROUGH NITROGEN USE EFFICIENCY METHODS IN BT COTTON UNDER RAINFED VERTISOLS

D. LAKSHMI KALYANI; K. SANKAR NARAYANAN; A. SITHA RAMA SHARMA; et al.

4
claims
8
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

A scientific field experiment was conducted during 2017, 2018 and 2019 in kharif season at R.A.R.S, Nandyal, Acharya N.G. Ranga Agricultural University to study Efficacy of Neem coated urea through nitrogen use efficiency methods in Bt cotton. The experiment consisting of seven nitrogen use efficiency treatments with combination of three nitrogen doses viz: No nitrogen, 75% recommended dose of nitrogen, 100% recommended dose of nitrogen, 2 methods of nitrogen application viz: band application and split application and 4 stages of nitrogen top dressing viz: basal, squaring, flowering and boll development stages along with foliar application of 1% urea at squaring, flowering, boll development stage with RBD design and replicated thrice. The results indicated that pooled seed cotton yield (2813 kg/ha), nutrient uptake and cotton economics were higher with spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stage and was on par with spot application of 75% recommended dose of nitrogen with 4 split doses of nitrogen, foliar application of 1% urea at squaring, flowering and boll developmental stage along with incorporation of fodder cowpea before flowering (2681 kg/ ha). Lower seed cotton yield (1637 kg/ ha) was recorded with no nitrogen treatment.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spot applied 75% recommended nitrogen with four splits and foliar urea gave higher pooled seed cotton yield of 2813 kg/ha.

Taxon
Bt cottont0
Treatment
spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stagee0
Outcome
pooled seed cotton yielde0
Direction
highere0
Value
2813 kg/hae0

Not reportedComparator

Verbatim

e0

“pooled seed cotton yield (2813 kg/ha), nutrient uptake and cotton economics were higher with spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stage”

✓ located verbatim in the source · abstract, characters 772–1038 · show in text ↑
t0

“Bt cotton”

✓ located after whitespace/quote normalisation · title, characters 72–81 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment increased nutrient uptake and cotton economics.

Taxon
Bt cottont0
Treatment
spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stagee0
Outcome
nutrient uptake and cotton economicse0
Direction
highere0

Not reportedComparator

Verbatim

e0

“nutrient uptake and cotton economics were higher with spot application 75% recommended dose of nitrogen with 4 split doses of nitrogen along with foliar application of 1% urea at squaring, flowering and boll developmental stage”

✓ located verbatim in the source · abstract, characters 811–1038 · show in text ↑
t0

“Bt cotton”

✓ located after whitespace/quote normalisation · title, characters 72–81 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The highest treatment was on par with a cowpea incorporation treatment yielding 2681 kg/ ha.

Taxon
Bt cottont0
Treatment
incorporation of fodder cowpea before floweringe0
Outcome
on pare0
Direction
on pare0
Value
2681 kg/ hae0

Verbatim

e0

“was on par with spot application of 75% recommended dose of nitrogen with 4 split doses of nitrogen, foliar application of 1% urea at squaring, flowering and boll developmental stage along with incorporation of fodder cowpea before flowering (2681 kg/ ha).”

✓ located verbatim in the source · abstract, characters 1043–1299 · show in text ↑
t0

“Bt cotton”

✓ located after whitespace/quote normalisation · title, characters 72–81 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

No nitrogen gave lower seed cotton yield of 1637 kg/ ha.

Taxon
Bt cottont0
Treatment
no nitrogen treatmente0
Outcome
seed cotton yielde0
Direction
Lowere0
Value
1637 kg/ hae0

Not reportedComparator

Verbatim

e0

“Lower seed cotton yield (1637 kg/ ha) was recorded with no nitrogen treatment.”

✓ located verbatim in the source · abstract, characters 1300–1378 · show in text ↑
t0

“Bt cotton”

✓ located after whitespace/quote normalisation · title, characters 72–81 · show in text ↑

stage · yield · Gossypium hirsutum (cotton)Positive and negative results

63 papers: 38 positive, 25 negative or no effect

37 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

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application · yield · Gossypium hirsutum (cotton)Positive and negative results

283 papers: 253 positive, 30 negative or no effect

252 papers in the same direction as this paper · 27 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

279 papers more in this group

See all 283 papers →

nitrogen · yield · Gossypium hirsutum (cotton)Positive and negative results

343 papers: 286 positive, 57 negative or no effect

285 papers in the same direction as this paper · 53 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

339 papers more in this group

See all 343 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.