Abstract
Increasing population pressures combined with government policies exert considerable pressure on traditional slash-and-burn farmers in northern Laos to change to other production systems. Replacing the natural fallow vegetation with fodder legumes could increase fodder availability, suppress weeds, and accelerate nutrient cycling. Establishment methods for potential forage species were evaluated at the Houay Khot station during 1992 and 1993. When broadcast into upland rice immediately after weeding in July, good or excellent establishment was observed for Stylosanthes guianensis, S. hamata, Macroptlium atropurpureum, Pueraria javanica. P. phaseoloides, Calopogonium mucunoides, C. caeruleurn, Leucaena leucocephala, Centrosema pubescens, and C. plumieri. Poor establishment was observed for Arachis pinto!, Flemingia congesta, Crowaria anagyroides, C. juncea, pigeon pea (Cajanus cajan), Tephrosia vogelil, and Lablab purpureus. July and August sowings resulted in better plant densities thaui June or September sowings. However,, early sowing of &ylosarzthes species reduced rice yield by 20-30% in 1993. Dibbling rice mixed (same hill) with leucaena resulted in good establishment without detrimental effect on rice yield, while dibbling race mixed with pigeon pea reduced rice yield by 55-65%.
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Claims 7
Claim · model-written summary
The listed ten forage species established well or excellently when broadcast into upland rice after July weeding.
- Taxon
- Stylosanthes guianensis
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Stylosanthes guianensise0 - Treatment
- broadcast into upland rice immediately after weeding in Julye0
- Outcome
- good or excellent establishmente0
- Setting
- upland ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“When broadcast into upland rice immediately after weeding in July, good or excellent establishment was observed for Stylosanthes guianensis, S. hamata, Macroptlium atropurpureum, Pueraria javanica. P. phaseoloides, Calopogonium mucunoides, C. caeruleurn, Leucaena leucocephala, Centrosema pubescens, and C. plumieri.”
Claim · model-written summary
The listed seven forage species established poorly.
Verbatim
e0“Poor establishment was observed for Arachis pinto!, Flemingia congesta, Crowaria anagyroides, C. juncea, pigeon pea (Cajanus cajan), Tephrosia vogelil, and Lablab purpureus.”
Claim · model-written summary
July and August sowings produced better plant densities than June or September sowings.
Verbatim
e0“July and August sowings resulted in better plant densities thaui June or September sowings.”
t0“Forage legume”
Claim · model-written summary
Early sowing of Stylosanthes species reduced rice yield by 20-30% in 1993.
- Taxon
- rice
Oryza sativat0 - Treatment
- early sowing of &ylosarzthes speciese0
- Interactor
- &ylosarzthes speciese0weed
- Outcome
- rice yielde0
- Direction
- reducede0
- Value
- 20-30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early sowing of &ylosarzthes species reduced rice yield by 20-30% in 1993.”
t0“rice”
Claim · model-written summary
Dibbling rice in the same hill with leucaena gave good leucaena establishment.
- Taxon
- Forage legumet0
- Treatment
- Dibbling rice mixed (same hill) with leucaenae0
- Outcome
- good establishmente0
Not reportedComparatorDirection
Verbatim
e0“Dibbling rice mixed (same hill) with leucaena resulted in good establishment”
t0“Forage legume”
Claim · model-written summary
Dibbling rice with leucaena had no detrimental effect on rice yield.
- Taxon
- riceOryza sativat0
- Treatment
- Dibbling rice mixed (same hill) with leucaenae0
- Outcome
- rice yielde0
- Direction
- without detrimental effecte0
LeucaenaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dibbling rice mixed (same hill) with leucaena resulted in good establishment without detrimental effect on rice yield”
t0“rice”
Claim · model-written summary
Dibbling rice mixed with pigeon pea reduced rice yield by 55-65%.
- Taxon
- riceOryza sativat0
- Treatment
- dibbling race mixed with pigeon peae0
- Interactor
- pigeon pea
Cajanus cajane0weed - Outcome
- rice yielde0
- Direction
- reducede0
- Value
- 55-65%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dibbling race mixed with pigeon pea reduced rice yield by 55-65%.”
t0“rice”
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