Abstract
A fixed plot field experiment was conducted during the rainy (kharif) seasons of 2002 and 2003 at New Delhi, to find out the effect of 3 inter-row spacings (60, 75 and 90 cm) and 3 levels of N (0, 60 and 120 kg Nlha) on per- formance of 2 genotypes ('DCH 177' and 'DCS 9') of castor (Ricinus communis L.) and physico-chemical proper- ties of soil. The mean performance indicated significant superiority of 'DCH 177' to 'DCS 9' in terms of yield at- tributes, seed yield (27.7 and 23.9 qlha), harvest index (9.59 and 8.92%) and net return (Rs 24,072 and 20,6561 ha). The optimum N dose was worked out to be 121.6 and 108.9 kg Nlha for 'DCH 177' and 'DCS 9' respectively. Castor genotypes responded to inter-row spacing significantly. The maximum seed yield (26.5 qlha), harvest in- dex (9.72%) and net return (Rs 23,420lha) were recorded with 98 cm inter-row spacing. Low temperature during December to February induced considerable fruits drop. The treatments under test also caused perceptible variation in fruits drop. Mean litter fall of 9 to 10 tonneslha per season was recorded. Litter fall exhibited marked increase due to decrease in inter-row spacing and increase in N levels. At the end of 2 years experimentation on the same site, physico-chemical properties like bulk density and pH recorded perceptible decrease from initial values, while soil organic carbon content and available N exhibited marked improvement over initial values.
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Claims 17
Claim · model-written summary
DCH 177 was significantly superior to DCS 9 in yield attributes, seed yield, harvest index, and net return.
- Taxon
- castor (Ricinus communis)
Ricinus communist0 - Material
- 'DCH 177'e0
- Outcome
- yield at- tributese0
- Comparator
- 'DCS 9'e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant superiority of 'DCH 177' to 'DCS 9' in terms of yield at- tributes, seed yield (27.7 and 23.9 qlha), harvest index (9.59 and 8.92%) and net return (Rs 24,072 and 20,6561 ha)”
t0“castor (Ricinus communis)”
Claim · model-written summary
DCH 177 seed yield was 27.7 qlha versus 23.9 qlha for DCS 9.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Outcome
- seed yielde0
- Value
- 27.7 and 23.9 qlhae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield (27.7 and 23.9 qlha)”
t0“castor (Ricinus communis)”
Claim · model-written summary
DCH 177 harvest index was 9.59% versus 8.92% for DCS 9.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Outcome
- harvest indexe0
- Value
- 9.59 and 8.92%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“harvest index (9.59 and 8.92%)”
t0“castor (Ricinus communis)”
Claim · model-written summary
DCH 177 net return was Rs 24,072 versus Rs 20,6561 ha for DCS 9.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Outcome
- net returne0
- Value
- Rs 24,072 and 20,6561 hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net return (Rs 24,072 and 20,6561 ha)”
t0“castor (Ricinus communis)”
Claim · model-written summary
Optimum nitrogen dose for DCH 177 was 121.6 kg Nlha.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Material
- 'DCH 177'e0
- Outcome
- optimum N dosee0
- Value
- 121.6 and 108.9 kg Nlhae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum N dose was worked out to be 121.6 and 108.9 kg Nlha for 'DCH 177' and 'DCS 9' respectively”
t0“castor (Ricinus communis)”
Claim · model-written summary
Optimum nitrogen dose for DCS 9 was 108.9 kg Nlha.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Material
- 'DCS 9'e0
- Outcome
- optimum N dosee0
- Value
- 121.6 and 108.9 kg Nlhae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum N dose was worked out to be 121.6 and 108.9 kg Nlha for 'DCH 177' and 'DCS 9' respectively”
t0“castor (Ricinus communis)”
Claim · model-written summary
Castor genotypes responded significantly to inter-row spacing.
- Taxon
- CastorRicinus communise0
- Treatment
- inter-row spacinge0
- Outcome
- responded to inter-row spacinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Castor genotypes responded to inter-row spacing significantly”
Claim · model-written summary
At 98 cm spacing, maximum seed yield was 26.5 qlha.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- 98 cm inter-row spacinge0
- Outcome
- maximum seed yielde0
- Direction
- maximume0
- Value
- 26.5 qlhae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum seed yield (26.5 qlha), harvest in- dex (9.72%) and net return (Rs 23,420lha) were recorded with 98 cm inter-row spacing”
t0“castor (Ricinus communis)”
Claim · model-written summary
At 98 cm spacing, maximum harvest index was 9.72%.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- 98 cm inter-row spacinge0
- Outcome
- harvest in- dexe0
- Direction
- maximume0
- Value
- 9.72%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum seed yield (26.5 qlha), harvest in- dex (9.72%) and net return (Rs 23,420lha) were recorded with 98 cm inter-row spacing”
t0“castor (Ricinus communis)”
Claim · model-written summary
At 98 cm spacing, maximum net return was Rs 23,420lha.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- 98 cm inter-row spacinge0
- Outcome
- net returne0
- Direction
- maximume0
- Value
- Rs 23,420lhae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum seed yield (26.5 qlha), harvest in- dex (9.72%) and net return (Rs 23,420lha) were recorded with 98 cm inter-row spacing”
t0“castor (Ricinus communis)”
Claim · model-written summary
Low temperature from December to February induced considerable fruit drop.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- Low temperature during December to Februarye0
- Outcome
- fruits drope0
- Qualifier
- considerablee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low temperature during December to February induced considerable fruits drop”
t0“castor (Ricinus communis)”
Claim · model-written summary
The tested treatments also varied fruit drop.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- treatments under teste0
- Outcome
- fruits drope0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments under test also caused perceptible variation in fruits drop”
t0“castor (Ricinus communis)”
Claim · model-written summary
Mean litter fall was 9 to 10 tonneslha per season.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Outcome
- litter falle0
- Value
- 9 to 10 tonneslha per seasone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean litter fall of 9 to 10 tonneslha per season was recorded”
t0“castor (Ricinus communis)”
Claim · model-written summary
Reduced inter-row spacing increased litter fall.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- decrease in inter-row spacinge0
- Outcome
- Litter falle0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Litter fall exhibited marked increase due to decrease in inter-row spacing”
t0“castor (Ricinus communis)”
Claim · model-written summary
Higher nitrogen levels increased litter fall.
- Taxon
- castor (Ricinus communis)Ricinus communist0
- Treatment
- increase in N levelse0
- Outcome
- increase in N levelse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in N levels”
t0“castor (Ricinus communis)”
Claim · model-written summary
Soil bulk density and pH decreased after two years on the site.
Not reportedTaxon
Verbatim
e0“bulk density and pH recorded perceptible decrease from initial values”
Claim · model-written summary
Soil organic carbon and available nitrogen improved after two years.
- Outcome
- soil organic carbon content and available Ne0
- Direction
- improvemente0
- Comparator
- initial valuese0
Not reportedTaxon
Verbatim
e0“soil organic carbon content and available N exhibited marked improvement over initial values”
The same questions in other papers
density · yield · Ricinus communis (castor bean)Positive and negative results
17 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
16 papers more in this group
See all 20 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.