Abstract
Improving total productivity in the rice-rabi cropping system in Bangladesh depends on elevating component yields whilst minimizing the risk of drought to both crops. Direct seeding of rice has the potential of advancing crop establishment with the onset of monsoon rains and allowing greater opportunities for subsequent rabi (chick-pea, mustard, linseed) crops on residual moisture as the dry season commences. Agronomic studies over three years indicated that rice yields could be increased over traditional transplanting by use of direct seeding in both a widely used (Swarna) and more recently introduced cultivar (BRRI dhan 39). Oxadiazon applied pre-emergence controlled major weeds but one manual weeding was needed for yield protection from weed competition from Altenanthera sessilis, Cyperus iria and Paspalum distichum in particular. Socio-economic evaluation indicated that adoption of direct seeded rice was more likely to occur on large farms where competition for labour at times of peak demand was intense and where there was a greater proportion of land area favourable for rabi cropping.
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Claims 5
Claim · model-written summary
Direct seeding increased rice yield over traditional transplanting for Swarna.
- Taxon
- rice
Oryza sativae0 - Material
- Swarnae0
- Treatment
- direct seedinge0
- Outcome
- rice yieldse0
- Direction
- increasede0
- Comparator
- traditional transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice yields could be increased over traditional transplanting by use of direct seeding in both a widely used (Swarna) and more recently introduced cultivar (BRRI dhan 39)”
Claim · model-written summary
Direct seeding increased rice yield over traditional transplanting for BRRI dhan 39.
- Taxon
- riceOryza sativae0
- Material
- BRRI dhan 39e0
- Treatment
- direct seedinge0
- Outcome
- rice yieldse0
- Direction
- increasede0
- Comparator
- traditional transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice yields could be increased over traditional transplanting by use of direct seeding in both a widely used (Swarna) and more recently introduced cultivar (BRRI dhan 39)”
Claim · model-written summary
Pre-emergence oxadiazon controlled major weeds in rice.
Not reportedTaxonComparator
Verbatim
e0“Oxadiazon applied pre-emergence controlled major weeds”
Claim · model-written summary
One manual weeding was needed to protect rice yield from competition by Alternanthera, Cyperus and Paspalum weeds.
Not reportedTaxon
Verbatim
e0“one manual weeding was needed for yield protection from weed competition from Altenanthera sessilis, Cyperus iria and Paspalum distichum in particular”
Claim · model-written summary
Direct-seeded rice adoption was more likely on large farms with intense peak labour demand and more land suited to rabi cropping.
- Taxon
- riceOryza sativae0
- Treatment
- direct seeded ricee0
- Outcome
- adoptione0
- Direction
- more likelye0
- Qualifier
- large farmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adoption of direct seeded rice was more likely to occur on large farms where competition for labour at times of peak demand was intense and where there was a greater proportion of land area favourable for rabi cropping”
The same questions in other papers
Oxadiazon · weed · Oryza sativa (rice)Results agree
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921 papers in the same direction as this paper · 132 in the opposite direction · 24 reporting no difference from an alternative
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See all 1,078 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.