Abstract
Many Asian farmers are shifting from rice transplanting to direct seeding because the latter requires less labour, time, drudgery, and cultivation cost. Direct seeding is usually practiced in either wet or dry land preparation depending on water availability. The present study aimed at evaluating the potential of single and paired rows drill seeding patterns and five N management strategies on crop productivity, N use-efficiency, and apparent N balance. The experiment was laid out in a split plot design with two seeding patterns as main plots and five N treatments as subplots with three replications. Drill seeding did not affect grain yield, water, and N use-efficiencies and N balance. Grain yield increased with LCC-based N management with the lower N fertilizer input. Soil available N after 2 years of rice cropping was similar to the amount at the beginning indicating most of applied fertilizer N was lost. DOI: http://dx.doi.org/10.3329/bjar.v37i4.14374 Bangladesh J. Agril. Res. 37(4): 559-571, December 2012
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Claims 4
Claim · model-written summary
Drill seeding did not affect rice grain yield, water and nitrogen use efficiencies, or nitrogen balance.
- Taxon
- rice
Oryza sativat0 - Treatment
- Drill seedinge0
- Outcome
- grain yield, water, and N use-efficiencies and N balancee0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drill seeding did not affect grain yield, water, and N use-efficiencies and N balance.”
t0“rice”
Claim · model-written summary
LCC-based nitrogen management increased grain yield with less nitrogen fertilizer.
- Taxon
- riceOryza sativat0
- Treatment
- LCC-based N managemente0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Qualifier
- lower N fertilizer inpute0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield increased with LCC-based N management with the lower N fertilizer input.”
t0“rice”
Claim · model-written summary
Soil available nitrogen after two years of rice cropping was similar to the initial amount.
- Taxon
- riceOryza sativae0
- Outcome
- Soil available Ne0
- Direction
- similare0
- Qualifier
- after 2 years of rice croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil available N after 2 years of rice cropping was similar to the amount at the beginning”
Claim · model-written summary
The authors infer that most applied fertilizer nitrogen was lost.
- Taxon
- riceOryza sativat0
- Outcome
- applied fertilizer N was loste0
- Qualifier
- most of applied fertilizer N was loste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicating most of applied fertilizer N was lost”
t0“rice”
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