Abstract
A field experiment was conducted during the rainy (kharif) seasons of 1998 and 1999, to study the effect of intercrops, harvesting times and levels of nitrogen on growth, yield and quality of forage sorghum [Sorghum bicolor (L) Moench] under rainfed conditions. Intercropping of sorghum with cowpea [Vigna unguiculata (L) Walp.] recorded 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 sorghurr compared to sorghum alone and its intercropping 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 harvesting at 45 days after sowing, but being statistically at par with harvesting at 60 days after sowing. However, significantly higher leaf: stem ratio was recorded with harvesting at 45 days after sowing than harvesting at 60 and 75 days after sowing. Nitrogen application @ 80 kg/ha 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 N/ha during both the years.
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Claims 4
Claim · model-written summary
Cowpea intercropping increased sorghum growth indices, forage and protein yield, and nitrogen uptake compared with sole sorghum and clusterbean intercropping.
- Taxon
- sorghum (Sorghum bicolor)
Sorghum bicolort0 - Treatment
- Intercropping of sorghum with cowpeae0
- Interactor
- cowpea
Vigna unguiculatae0other - Second interactor
- clusterbean
Cyamopsis tetragonolobae0other - Outcome
- leaf-area index, leaf: stem ratio, crop-growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptakee0
- Direction
- highere0
- Comparator
- sorghum alone and its intercropping with clusterbeane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping of sorghum with cowpea [Vigna unguiculata (L) Walp.] recorded 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 sorghurr compared to sorghum alone and its intercropping with clusterbean [Cyamopsis tetragonoloba (L.) Taub.] during both the years.”
t0“sorghum (Sorghum bicolor)”
Claim · model-written summary
Harvest at 75 days increased forage and protein yields and nitrogen uptake over 45 days, and was statistically at par with 60 days.
- Treatment
- harvesting at 75 days after sowinge0
- Outcome
- Forage and crude protein yields and nitrogen uptakee0
- Direction
- increasede0
- Qualifier
- statistically at par with harvesting at 60 days after sowinge0
- Comparator
- harvesting at 45 days after sowinge0
SorghumOrganisms 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 harvesting at 45 days after sowing, but being statistically at par with harvesting at 60 days after sowing.”
Claim · model-written summary
Harvest at 45 days increased leaf to stem ratio over 60 or 75 days.
- Taxon
- sorghum (Sorghum bicolor)Sorghum bicolort0
- Treatment
- harvesting at 45 days after sowinge0
- Outcome
- leaf: stem ratioe0
- Direction
- 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 (Sorghum bicolor)”
Claim · model-written summary
Nitrogen at 80 kg/ha increased growth indices, forage and protein yield and nitrogen uptake over control and 40 kg N/ha.
- Taxon
- sorghum (Sorghum bicolor)Sorghum bicolort0
- Treatment
- Nitrogen application @ 80 kg/hae0
- Outcome
- leaf-area index, leaf: stem ratio, crop-growth rate, relative growth rate, net assimilation rate, forage and crude protein yield and nitrogen uptakee0
- Direction
- increasede0
- Comparator
- the control and 40 kg N/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application @ 80 kg/ha 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 N/ha during both the years.”
t0“sorghum (Sorghum bicolor)”
The same questions in other papers
Vigna unguiculata · quality: protein · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
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 →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.