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.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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
Claim · model-written summary
Cowpea intercropping increased sorghum growth indices and forage, protein yield and nitrogen uptake relative to monoculture and clusterbean intercropping.
- 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.


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.]”
t0“Sorghum bicolor”
Claim · model-written summary
Cowpea intercropping increased relative growth rate, net assimilation rate and forage yield.
- 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.


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.]”
Claim · model-written summary
Cowpea intercropping increased sorghum crude protein yield and nitrogen uptake.
- 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.


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.]”
Claim · model-written summary
Harvesting at 75 rather than 45 days increased forage yield, crude protein yield and nitrogen uptake.
- 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.

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”
t0“Sorghum bicolor”
Claim · model-written summary
Yields and nitrogen uptake at 75 days were statistically comparable to those at 60 days.
- 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.

Verbatim
e0“but being statistically at par with harvesting at 60 days after sowing”
e1“Forage and crude protein yields and nitrogen uptake of sorghum”
e2“harvesting at 75 days after sowing”
Claim · model-written summary
Harvesting at 45 days yielded a higher leaf to stem ratio than at 60 or 75 days.
- Taxon
- Sorghum bicolor
Sorghum 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.

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”
t0“Sorghum bicolor”
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 bicolor
Sorghum 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.

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”
t0“Sorghum bicolor”
Claim · model-written summary
Nitrogen at 80 kglha increased relative growth rate, net assimilation rate and forage yield.
- Taxon
- Sorghum bicolor
Sorghum 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.

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”
t0“Sorghum bicolor”
Claim · model-written summary
Nitrogen at 80 kglha increased crude protein yield and nitrogen uptake.
- Taxon
- Sorghum bicolor
Sorghum 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.

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”
t0“Sorghum bicolor”
The same questions in other papers
Vigna unguiculata · growth · SorghumPositive and negative results
5 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
5 papers more in this group
See all 9 papers →Vigna unguiculata · quality: protein · SorghumResults agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →nitrogen · quality: protein · Sorghum bicolor (sorghum)Positive and negative results
13 papers in the same direction as this paper · 2 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
14 papers more in this group
See all 18 papers →nitrogen · growth · Sorghum bicolor (sorghum)Positive and negative results
22 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
- 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.