Paper · 1991 · Madras Agricultural Journal

EFFECT OF INTERCROPPING OF GRAIN LEGUMES ON THE YIELD AND QUALITY OF FLUE-CURED TOBACCO (NICOTIANA TABACUM L.) IN VERTISOLS.

RAGHAVATAH C.V; RAMACHANDRAM D

13
claims
18
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

Field experiments conducted from 1982-1983 to 1984-1985 at the Central Tobacco Rc- search Institute, Rajahmundry revealed that tobacco + pigeonpea either 1:1 or 2:1, tobacco + chickpea 1:1 and tobacco+pigeonpea either 1:1 or 2:1, tobacco+chickpea 1:1 and tobacco+mung 1:2 as additive series resulted in cured leaf and total bright leat equivalent (TBLE) production as that of sole tobacco. Nitrogen fertilizer upto 20 kg.ha¹ remarkably increased the cured leaf and bright leaf production over no N. Applied N showed no effect on grain yield of legumes. Intercropping tobacco with chickpea either in 1: 1 or 2:2, pigeonpea in 1:1 or mung in 2:2 pattern maintained similar leaf quality in terms of sugar/nicotine ratios as sole tobacco. Tobacco manufac- turing quality components such as equivalent moisture content (EMC) filling value and pore volume remained unaltered by intercropping with grain legume. Increasing N fertilizer increased the leaf nicotine content and decreased the reducing sugar and sugar:nicotine ratio. Land equiva- lent ratios and the total economic productivity was higher when tobacco was intercropped with pigeonpea in 1:1 or 2:1 pattern.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 resultno effectmeasured

Claim · model-written summary

Tobacco plus pigeonpea retained cured leaf and TBLE production equal to sole tobacco.

Treatment
tobacco + pigeonpea either 1:1 or 2:1e0
Outcome
cured leaf and total bright leat equivalent (TBLE) productione0
Comparator
sole tobaccoe0

Not reportedDirection

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“tobacco + pigeonpea either 1:1 or 2:1, tobacco + chickpea 1:1 and tobacco+pigeonpea either 1:1 or 2:1, tobacco+chickpea 1:1 and tobacco+mung 1:2 as additive series resulted in cured leaf and total bright leat equivalent (TBLE) production as that of sole tobacco”

✓ located verbatim in the source · abstract, characters 127–388 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tobacco plus chickpea retained cured leaf and TBLE production equal to sole tobacco.

Treatment
tobacco + chickpea 1:1e0
Outcome
cured leaf and total bright leat equivalent (TBLE) productione0
Comparator
sole tobaccoe0

Not reportedDirection

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“tobacco + chickpea 1:1 and tobacco+pigeonpea either 1:1 or 2:1, tobacco+chickpea 1:1 and tobacco+mung 1:2 as additive series resulted in cured leaf and total bright leat equivalent (TBLE) production as that of sole tobacco”

✓ located verbatim in the source · abstract, characters 166–388 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tobacco plus mung retained cured leaf and TBLE production equal to sole tobacco.

Treatment
tobacco+mung 1:2e0
Outcome
cured leaf and total bright leat equivalent (TBLE) productione0
Comparator
sole tobaccoe0

Not reportedDirection

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“tobacco+mung 1:2 as additive series resulted in cured leaf and total bright leat equivalent (TBLE) production as that of sole tobacco”

✓ located verbatim in the source · abstract, characters 255–388 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen to 20 kg.ha¹ increased cured leaf and bright leaf production.

Treatment
Nitrogen fertilizer upto 20 kg.ha¹e0
Outcome
cured leaf and bright leaf productione0
Direction
increasede0
Comparator
no Ne0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen fertilizer upto 20 kg.ha¹ remarkably increased the cured leaf and bright leaf production over no N”

✓ located verbatim in the source · abstract, characters 390–497 · show in text ↑
t0

“TOBACCO”

✓ located verbatim in the source · title, characters 80–87 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Applied nitrogen had no effect on legume grain yield.

Taxon
legumese0
Treatment
Applied Ne0
Outcome
grain yield of legumese0
Direction
no effecte0

Not reportedComparator

Verbatim

e0

“Applied N showed no effect on grain yield of legumes”

✓ located verbatim in the source · abstract, characters 499–551 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Chickpea intercropping maintained tobacco sugar/nicotine ratio.

Treatment
chickpea either in 1: 1 or 2:2e0
Outcome
sugar/nicotine ratiose0
Direction
similare0
Comparator
sole tobaccoe0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping tobacco with chickpea either in 1: 1 or 2:2, pigeonpea in 1:1 or mung in 2:2 pattern maintained similar leaf quality in terms of sugar/nicotine ratios as sole tobacco”

✓ located verbatim in the source · abstract, characters 553–733 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pigeonpea intercropping maintained tobacco sugar/nicotine ratio.

Treatment
pigeonpea in 1:1e0
Outcome
sugar/nicotine ratiose0
Direction
similare0
Comparator
sole tobaccoe0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping tobacco with chickpea either in 1: 1 or 2:2, pigeonpea in 1:1 or mung in 2:2 pattern maintained similar leaf quality in terms of sugar/nicotine ratios as sole tobacco”

✓ located verbatim in the source · abstract, characters 553–733 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Mung intercropping maintained tobacco sugar/nicotine ratio.

Treatment
mung in 2:2e0
Outcome
sugar/nicotine ratiose0
Direction
similare0
Comparator
sole tobaccoe0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping tobacco with chickpea either in 1: 1 or 2:2, pigeonpea in 1:1 or mung in 2:2 pattern maintained similar leaf quality in terms of sugar/nicotine ratios as sole tobacco”

✓ located verbatim in the source · abstract, characters 553–733 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Legume intercropping left EMC, filling value and pore volume unchanged.

Treatment
intercropping with grain legumee0
Outcome
equivalent moisture content (EMC) filling value and pore volumee0
Direction
unalterede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“equivalent moisture content (EMC) filling value and pore volume remained unaltered by intercropping with grain legume”

✓ located verbatim in the source · abstract, characters 786–903 · show in text ↑
t0

“TOBACCO”

✓ located verbatim in the source · title, characters 80–87 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing nitrogen increased tobacco leaf nicotine.

Treatment
Increasing N fertilizere0
Outcome
leaf nicotine contente0
Direction
increasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Increasing N fertilizer increased the leaf nicotine content and decreased the reducing sugar and sugar:nicotine ratio”

✓ located verbatim in the source · abstract, characters 905–1022 · show in text ↑
t0

“TOBACCO”

✓ located verbatim in the source · title, characters 80–87 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing nitrogen decreased tobacco reducing sugar.

Treatment
Increasing N fertilizere0
Outcome
reducing sugare0
Direction
decreasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Increasing N fertilizer increased the leaf nicotine content and decreased the reducing sugar and sugar:nicotine ratio”

✓ located verbatim in the source · abstract, characters 905–1022 · show in text ↑
t0

“TOBACCO”

✓ located verbatim in the source · title, characters 80–87 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing nitrogen decreased tobacco sugar:nicotine ratio.

Treatment
Increasing N fertilizere0
Outcome
sugar:nicotine ratioe0
Direction
decreasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Increasing N fertilizer increased the leaf nicotine content and decreased the reducing sugar and sugar:nicotine ratio”

✓ located verbatim in the source · abstract, characters 905–1022 · show in text ↑
t0

“TOBACCO”

✓ located verbatim in the source · title, characters 80–87 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tobacco-pigeonpea at 1:1 or 2:1 increased land equivalent ratios and economic productivity.

Treatment
intercropped with pigeonpea in 1:1 or 2:1 patterne0
Outcome
Land equiva- lent ratios and the total economic productivitye0
Direction
highere0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Land equiva- lent ratios and the total economic productivity was higher when tobacco was intercropped with pigeonpea in 1:1 or 2:1 pattern”

✓ located verbatim in the source · abstract, characters 1024–1162 · show in text ↑

Cicer arietinum · yield · Nicotiana tabacum (tobacco)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 reporting no difference from an alternative

  1. positive
See all 2 papers →

intercropping · yield · Nicotiana tabacum (tobacco)Positive and negative results

20 papers: 17 positive, 3 negative or no effect

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

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

16 papers more in this group

See all 20 papers →

fertilization · yield · Nicotiana tabacum (tobacco)Positive and negative results

214 papers: 187 positive, 27 negative or no effect

186 papers in the same direction as this paper · 24 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

210 papers more in this group

See all 214 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.