Claim · model-written summary
After panicle initiation there was no residual effect of previous nitrogen source on the rate of crop nitrogen accumulation.
- Taxon
- Rice
Oryza sativat0 - Treatment
- previous nitrogen sourcee0
- Outcome
- rate of crop nitrogen accumulatione0
- Direction
- no residual effecte0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Lowland Rice”
e0“After panicle initiation there was no residual effect on the rate of crop nitrogen accumulation, and final grain yields were similar regardless of previous nitrogen source”
Title
K. G. Cassman; S. K. de Datta; S. T. Amarante; et al. Experimental Agriculture 1996. doi:10.1017/s0014479700001514
Other claims from this paper (7)
- Intervention effect Green manure and rice straw nitrogen, alone or in combination with inorganic N, gave lower grain yield, agronomic efficiency and apparent nitrogen uptake than a standard split application of prilled urea.
- Intervention effect Compared with prilled urea, residual effects of green manure or rice straw included a significant increase in soil organic carbon and total nitrogen.
- Intervention effect Residual effects of green manure or rice straw, compared with prilled urea, included greater extractable soil nitrogen in the vegetative growth period.
- Intervention effect Final grain yields were similar regardless of the previous nitrogen source.
- Recommendation Recycling of rice straw appeared to have greater potential for reducing fertilizer-N requirements than green manure.
- Intervention effect The increase in soil nitrogen from rice straw was 50-150% greater than from green manure.
- Intervention effect The efficiency of rice straw nitrogen combined with prilled urea is comparable to green manure nitrogen.