Paper · 2001 · Indian Journal of Agronomy

Physiological growth parameters, forage yield and nitrogen uptake of sorghum (Sorghum bicolor) as influenced with legume intercropping, harvesting time and nitrogen level

S.N. RAMi; BHAGWAN SINGH

9
claims
17
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted during the rainy (kharif) seasons of 1998 and 1999, to study the effect of in tercrops, harvesting times and levels of nitrogen on growth, yis13 and quality of forage sorghum [Sorghum bicolor (L.) Moench] under rainfed conditions. lntercropping of sorghum with cowpea [Vigna unguiculata (L.) Walp.] re corded significantly higher leaf area index, leaf: stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake of sorghum compared to sorghum alone and its intercrop ping with clusterbean [Cyamopsis tetragonoloba (L.) Taub.] during both the years. Forage and crude protein yields and nitrogen uptake of sorghum were also significantly increased with harvesting at 75 days after sowing than har vesting at 45 days after sowing, but being statistically at par with harvesting at 60 days after sowing. However, sig nificantly higher leaf : stem ratio was recorded with harvesting at 45 days after sowing than harvesting at 60 and 75 days after sowing. Nitrogen application Q 80 kglha significantly increased the leaf area index, leaf : stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake compared to the control and 40 kg Nlha during both the years.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Cowpea intercropping increased sorghum growth indices and forage, protein yield and nitrogen uptake relative to monoculture and clusterbean intercropping.

Taxon
sorghumSorghume0
Treatment
lntercropping of sorghum with cowpeae0
Interactor
cowpea [Vigna unguiculata (L.) Walp.]Vigna unguiculatae0other
Outcome
leaf area index, leaf: stem ratio, crop growth ratee0
Direction
significantly highere0
Comparator
sorghum alone and its intercrop ping with clusterbeane0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗
Vigna unguiculata
Vigna unguiculata · InteractorHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“lntercropping of sorghum with cowpea [Vigna unguiculata (L.) Walp.] re corded significantly higher leaf area index, leaf: stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake of sorghum compared to sorghum alone and its intercrop ping with clusterbean [Cyamopsis tetragonoloba (L.) Taub.]”

✓ located verbatim in the source · abstract, characters 264–625 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Cowpea intercropping increased relative growth rate, net assimilation rate and forage yield.

Taxon
sorghumSorghume0
Treatment
lntercropping of sorghum with cowpeae0
Interactor
cowpea [Vigna unguiculata (L.) Walp.]Vigna unguiculatae0other
Outcome
relative growth rate, net assimilation rate, foragee0
Direction
significantly highere0
Comparator
sorghum alonee0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗
Vigna unguiculata
Vigna unguiculata · InteractorHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“lntercropping of sorghum with cowpea [Vigna unguiculata (L.) Walp.] re corded significantly higher leaf area index, leaf: stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake of sorghum compared to sorghum alone and its intercrop ping with clusterbean [Cyamopsis tetragonoloba (L.) Taub.]”

✓ located verbatim in the source · abstract, characters 264–625 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Cowpea intercropping increased sorghum crude protein yield and nitrogen uptake.

Taxon
sorghumSorghume0
Treatment
lntercropping of sorghum with cowpeae0
Interactor
cowpea [Vigna unguiculata (L.) Walp.]Vigna unguiculatae0other
Outcome
crude protein yield and nitrogen uptakee0
Direction
significantly highere0
Comparator
sorghum alonee0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗
Vigna unguiculata
Vigna unguiculata · InteractorHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“lntercropping of sorghum with cowpea [Vigna unguiculata (L.) Walp.] re corded significantly higher leaf area index, leaf: stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake of sorghum compared to sorghum alone and its intercrop ping with clusterbean [Cyamopsis tetragonoloba (L.) Taub.]”

✓ located verbatim in the source · abstract, characters 264–625 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Harvesting at 75 rather than 45 days increased forage yield, crude protein yield and nitrogen uptake.

Taxon
sorghumSorghume0
Treatment
harvesting at 75 days after sowinge0
Outcome
Forage and crude protein yields and nitrogen uptakee0
Direction
significantly increasede0
Comparator
har vesting at 45 days after sowinge0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Forage and crude protein yields and nitrogen uptake of sorghum were also significantly increased with harvesting at 75 days after sowing than har vesting at 45 days after sowing”

✓ located verbatim in the source · abstract, characters 649–826 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Yields and nitrogen uptake at 75 days were statistically comparable to those at 60 days.

Taxon
sorghumSorghume1
Treatment
harvesting at 75 days after sowinge2
Outcome
Forage and crude protein yields and nitrogen uptakee1
Direction
statistically at pare0
Comparator
harvesting at 60 days after sowinge0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“but being statistically at par with harvesting at 60 days after sowing”

✓ located verbatim in the source · abstract, characters 828–898 · show in text ↑
e1

“Forage and crude protein yields and nitrogen uptake of sorghum”

✓ located verbatim in the source · abstract, characters 649–711 · show in text ↑
e2

“harvesting at 75 days after sowing”

✓ located verbatim in the source · abstract, characters 751–785 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Harvesting at 45 days yielded a higher leaf to stem ratio than at 60 or 75 days.

Taxon
Sorghum bicolorSorghum bicolort0
Treatment
harvesting at 45 days after sowinge0
Outcome
leaf : stem ratioe0
Direction
significantly highere0
Comparator
harvesting at 60 and 75 days after sowinge0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“significantly higher leaf : stem ratio was recorded with harvesting at 45 days after sowing than harvesting at 60 and 75 days after sowing”

✓ located after whitespace/quote normalisation · abstract, characters 909–1048 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen at 80 kglha increased growth indices, forage and protein yield and nitrogen uptake over control and 40 kg Nlha.

Taxon
Sorghum bicolorSorghum bicolort0
Treatment
Nitrogen application Q 80 kglhae0
Outcome
leaf area index, leaf : stem ratio, crop growth ratee0
Direction
significantly increasede0
Comparator
the control and 40 kg Nlhae0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application Q 80 kglha significantly increased the leaf area index, leaf : stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake compared to the control and 40 kg Nlha”

✓ located verbatim in the source · abstract, characters 1050–1298 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen at 80 kglha increased relative growth rate, net assimilation rate and forage yield.

Taxon
Sorghum bicolorSorghum bicolort0
Treatment
Nitrogen application Q 80 kglhae0
Outcome
relative growth rate, net assimilation rate, foragee0
Direction
significantly increasede0
Comparator
the control and 40 kg Nlhae0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application Q 80 kglha significantly increased the leaf area index, leaf : stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake compared to the control and 40 kg Nlha”

✓ located verbatim in the source · abstract, characters 1050–1298 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen at 80 kglha increased crude protein yield and nitrogen uptake.

Taxon
Sorghum bicolorSorghum bicolort0
Treatment
Nitrogen application Q 80 kglhae0
Outcome
crude protein yield and nitrogen uptakee0
Direction
significantly increasede0
Comparator
the control and 40 kg Nlhae0

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen application Q 80 kglha significantly increased the leaf area index, leaf : stem ratio, crop growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptake compared to the control and 40 kg Nlha”

✓ located verbatim in the source · abstract, characters 1050–1298 · show in text ↑
t0

“Sorghum bicolor”

✓ located verbatim in the source · title, characters 78–93 · show in text ↑

Vigna unguiculata · growth · SorghumPositive and negative results

9 papers: 6 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

5 papers more in this group

See all 9 papers →

Vigna unguiculata · quality: protein · SorghumResults agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

nitrogen · quality: protein · Sorghum bicolor (sorghum)Positive and negative results

18 papers: 14 positive, 4 negative or no effect

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

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

14 papers more in this group

See all 18 papers →

nitrogen · growth · Sorghum bicolor (sorghum)Positive and negative results

28 papers: 23 positive, 5 negative or no effect

22 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

24 papers more in this group

See all 28 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.