Abstract
A field experiment was conducted under Network Project on Organic Horticulture during 2015–17 (April-January) at ICAR-Central Plantation Crops Research Institute (ICAR-CPCRI), Kasaragod, to validate the ICAR-CTCRI developed organic farming technologies in yams under intercropping in an organically raised mature coconut garden (>48 years). Three species of Dioscorea [(greater yam (D. alata), lesser yam (D. esculenta) and white yam (D. rotundata)] were tested under four production systems, viz. traditional, conventional, integrated and organic, and replicated thrice in split plot design in a mature coconut garden. Organic practice was similar to conventional as revealed from the identical impacts on yield, tuber quality and soil chemical properties. Yield under organic management was 98.6% of conventional farming. D. alata and D. esculenta were more responsive (+8 to 10%) to organic management, but organic management lowered yield by 30% in dwarf white yam (D. rotundata). The organic farming package comprising farmyard manure, green manure cowpea, neem cake and ash resulted in higher available N, exchangeable Ca and available Zn in soil and significant improvement in K, higher P and Mg contents in yam tubers. However, the highest profit was realized from coconut + D. alata in integrated system (`1,87,057/ha). Among yams, greater yam (D. alata) was the most productive and profitable under organic management (`1,46,634/ha) in intercropping set up.
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Claims 10
Claim · model-written summary
Organic practice had impacts on yield, tuber quality and soil chemistry similar to conventional farming.
Verbatim
e0“Organic practice was similar to conventional as revealed from the identical impacts on yield, tuber quality and soil chemical properties.”
t0“yams (Dioscorea spp.)”
Claim · model-written summary
Organic yield was 98.6% of conventional yield.
Not reportedDirection
Verbatim
e0“Yield under organic management was 98.6% of conventional farming.”
t0“yams (Dioscorea spp.)”
Claim · model-written summary
D. alata was 8 to 10% more responsive to organic management.
- Taxon
- D. alata
Dioscorea alatae0 - Treatment
- organic managemente0
- Outcome
- responsivee0
- Direction
- moree0
- Value
- +8 to 10%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. alata and D. esculenta were more responsive (+8 to 10%) to organic management”
Claim · model-written summary
D. esculenta was 8 to 10% more responsive to organic management.
- Taxon
- D. esculenta
Dioscorea esculentae0 - Treatment
- organic managemente0
- Outcome
- responsivee0
- Direction
- moree0
- Value
- +8 to 10%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“D. alata and D. esculenta were more responsive (+8 to 10%) to organic management”
Claim · model-written summary
Organic management lowered D. rotundata yield by 30%.
- Taxon
- D. rotundata
Dioscorea cayenensis subsp. rotundatae0 - Treatment
- organic managemente0
- Outcome
- yielde0
- Direction
- lowerede0
- Value
- 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organic management lowered yield by 30% in dwarf white yam (D. rotundata)”
Claim · model-written summary
Organic farming increased available N, exchangeable Ca and available Zn in soil.
- Taxon
- yamst0
- Treatment
- organic farming package comprising farmyard manure, green manure cowpea, neem cake and ashe0
- Outcome
- available N, exchangeable Ca and available Zn in soile0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“The organic farming package comprising farmyard manure, green manure cowpea, neem cake and ash resulted in higher available N, exchangeable Ca and available Zn in soil”
t0“yams (Dioscorea spp.)”
Claim · model-written summary
Organic farming improved K content in yam tubers.
Not reportedComparator
Verbatim
e0“significant improvement in K, higher P and Mg contents in yam tubers”
e1“The organic farming package comprising farmyard manure, green manure cowpea, neem cake and ash”
Claim · model-written summary
Organic farming raised P and Mg contents in yam tubers.
Not reportedComparator
Verbatim
e0“significant improvement in K, higher P and Mg contents in yam tubers”
e1“The organic farming package comprising farmyard manure, green manure cowpea, neem cake and ash”
Claim · model-written summary
Integrated coconut plus D. alata had the highest profit at `1,87,057/ha.
- Taxon
- D. alataDioscorea alatae0
- Outcome
- profite0
- Direction
- higheste0
- Value
- `1,87,057/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest profit was realized from coconut + D. alata in integrated system (`1,87,057/ha)”
Claim · model-written summary
D. alata was the most productive and profitable organic yam, with `1,46,634/ha.
- Taxon
- D. alataDioscorea alatae0
- Outcome
- productive and profitablee0
- Direction
- moste0
- Value
- `1,46,634/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“greater yam (D. alata) was the most productive and profitable under organic management (`1,46,634/ha) in intercropping set up”
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cultivation system · nutrient: content · DioscoreaResults agree
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fertilization · soil: chemistry · DioscoreaResults agree
4 papers in the same direction as this paper
- positive
- positive
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1 paper more in this group
See all 5 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.