Claim · model-written summary
Ecological optimization maintained economic benefit and grain yield versus economic optimization.
Zea maysVerbatim
t0“summer maize”
e0“Compared with Neco management, Necl increased net benefit by 12%, with a 31% decrease in total environmental costs and a 33% decrease in Nr loss intensity from N fertilizer use, and maintained economic benefit and grain yield”
Title
G. L. Wang; Y. L. Ye; X. P. Chen; et al. Biogeosciences 2014. doi:10.5194/bg-11-3031-2014
Other claims from this paper (14)
- Observation Agronomic, economic and ecological optimal nitrogen rates averaged 289, 237 and 171 kg N ha−1, respectively.
- Intervention effect Ecological optimization increased net benefit by 53% versus agronomic optimization.
- Intervention effect Ecological optimization decreased environmental costs by 46% versus agronomic optimization.
- Intervention effect Ecological optimization decreased Nr loss intensity by 51% versus agronomic optimization.
- Intervention effect Ecological optimization decreased N2O emissions by 47% versus agronomic optimization.
- Intervention effect Ecological optimization decreased N leaching by 65% versus agronomic optimization.
- Intervention effect Ecological optimization decreased NH3 volatilization by 38% versus agronomic optimization.
- Intervention effect Ecological optimization maintained grain yield versus agronomic optimization.
- Intervention effect Ecological optimization increased net benefit by 12% versus economic optimization.
- Intervention effect Ecological optimization decreased environmental costs by 31% versus economic optimization.
- Intervention effect Ecological optimization decreased Nr loss intensity by 33% versus economic optimization.
- Observation Ecologically optimal nitrogen rate did not differ between soil types or years.
- Observation Ecologically optimal nitrogen rate varied significantly among counties.
- Association Ecologically optimal nitrogen rate increased with N-derived yield, with R2 of 0.83.