Nitrogen application rate and nitrous oxide flux from a pastoral soil
نویسندگان
چکیده
منابع مشابه
Nitrous oxide flux from soil amino acid mineralization
Nitrous oxide (N2O) is a greenhouse gas produced during microbial transformation of soil N that has been implicated in global climate warming. Nitrous oxide efflux from N fertilized soils has been modeled using NO3 K content with a limited success, but predicting N2O production in non-fertilized soils has proven to be much more complex. The present study investigates the contribution of soil am...
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Little information exists on the potential for N fertilizer application to corn ( L.) to affect NO emissions during subsequent unfertilized crops in a rotation. To determine if N fertilizer application to corn affects NO emissions during subsequent crops in rotation, we measured NO emissions for 3 yr (2011-2013) in an Iowa, corn-soybean [ (L.) Merr.] rotation with three N fertilizer rates appli...
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Globally, vegetable fields are the primary source of greenhouse gas emissions. A closed-chamber method together with gas chromatography was used to measure the fluxes of nitrous oxide (N2O) emissions in typical vegetable fields planted with four vegetables sequentially over time in the same field: endive, lettuce, cabbage and sweet corn. Results showed that N2O fluxes occurred in pulses with th...
متن کاملNitrous Oxide Emissions from Fertilizer Nitrogen
Agronomic market development information provided by: Dr. Adrian Johnston Northern Great Plains Region Director Potash & Phosphate Institute (PPI)/ Potash & Phosphate Institute of Canada (PPIC) 12-425 Pinehouse Drive Saskatoon, Saskatchewan, Canada S7K 5K2 Phone: (306) 956-0619 E-mail: [email protected] THE ATMOSPHERIC CONCENTRATIONS of nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and me...
متن کاملNitrogen source and placement effects on soil nitrous oxide emissions from no-till corn.
A nitrogen (N) source comparison study was conducted to further evaluate the effects of inorganic N source and placement on growing-season and non-crop period soil nitrous oxide (NO). Commercially available controlled-release N fertilizers were evaluated for their potential to reduce NO emissions from a clay loam soil compared with conventionally used granular urea and urea-ammonium nitrate (UA...
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ژورنال
عنوان ژورنال: New Zealand Journal of Agricultural Research
سال: 2014
ISSN: 0028-8233,1175-8775
DOI: 10.1080/00288233.2014.927772