Winter grazing of forages - soil moisture and tillage methods impact nitrous oxide emissions and dry matter production
نویسندگان
چکیده
منابع مشابه
The Impact of Fertilizer Source and Tillage Systems on Nitrous Oxide Emissions
Background: Nitrous oxide (N2O) is a greenhouse gas that is a very small portion of the nitrogen cycle, but is environmentally damaging at low levels. In the lower atmosphere, N2O absorbs infrared radiation in spectra not absorbed by other common greenhouse gases, such as carbon dioxide. Because of N2O’s unique spectral absorption range, each molecule absorbs 200 times as much outgoing radiatio...
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Experimental farmlets at DairyNZ’s Prototype Farm near Hamilton were used to determine potential reductions in nitrous oxide (N2O) emissions from use of a nitrification inhibitor and a restricted grazing regime. A control farmlet was managed under a conventional rotational grazing regime, while a “tight nitrogen” farmlet was managed under a similar grazing regime to that on the control farmlet,...
متن کاملManagement of Native Soil Nitrogen for Reducing Nitrous Oxide Emissions and Higher Rice Production
Present production of rice is far below its reported potential yield because of being Ndeficiency, the major constraint. Because of poverty, small farmers have to rely on native soil N-supply. Between wheat harvest and rice transplanting, a dry-to-wet season transition (DWT) period exist with changing soil moisture from aerobic to anaerobic and a large amount of native soil N loss is hypothesiz...
متن کاملNitrous oxide emissions
H. W. Bange1,7, M. O. Andreae1, S. Lal2, C. S. Law3, S. W. A. Naqvi4, P. K. Patra2,8, T. Rixen5,9, and R. C. Upstill-Goddard6 1Max Planck Institute for Chemistry, Mainz, Germany 2Physical Research Laboratory, Ahmedabad, India 3Plymouth Marine Laboratory, Plymouth, United Kingdom 4National Institute of Oceanography, Dona Paula, Goa, India 5University of Hamburg, Hamburg, Germany 6University of N...
متن کاملNitrogen, tillage, and crop rotation effects on nitrous oxide emissions from irrigated cropping systems.
We evaluated the effects of irrigated crop management practices on nitrous oxide (N(2)O) emissions from soil. Emissions were monitored from several irrigated cropping systems receiving N fertilizer rates ranging from 0 to 246 kg N ha(-1) during the 2005 and 2006 growing seasons. Cropping systems included conventional-till (CT) continuous corn (Zea mays L.), no-till (NT) continuous corn, NT corn...
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ژورنال
عنوان ژورنال: Proceedings of the New Zealand Grassland Association
سال: 2004
ISSN: 1179-4577,0369-3902
DOI: 10.33584/jnzg.2004.66.2571