Zobrazeno 1 - 10
of 82
pro vyhledávání: '"G S, Francis"'
Autor:
Michael H. Beare, P. M. Fraser, G. S. Francis, E. D. Meenken, Denis Curtin, T. Harrison-Kirk, R. N. Gillespie, F. J. Tabley
Publikováno v:
Soil Science Society of America Journal. 77:1391-1401
The potential for nitrate (NO₃–) to leach is enhanced following cultivation of pastoral land, due to rapid mineralization of labile soil organic matter (SOM). In a 7-yr field trial in New Zealand, we examined the impacts of tillage intensity [int
Publikováno v:
Soil Science Society of America Journal. 76:1333-1346
Subsoil denitrification is a potential sink for leached nitrate (NO₃–) that may otherwise contaminate ground water. A field trial was undertaken to assess the importance of subsoil denitrification and to examine the role of leached NO₃– on su
Autor:
E. H. Nichols, G. S. Francis
Publikováno v:
MD Conference Express. 13:11-13
Autor:
H.E. Barlow, G. S. Francis, Rodney Dann, Mark J. Flintoft, Murray E. Close, Ross Hector, Steve Thomas
Publikováno v:
Vadose Zone Journal. 8:651-663
Understanding the physical and hydraulic properties of the vadose zone is important for modeling land use effects on groundwater quality. This study used a variety of characterization methods to derive conceptual understanding and estimates of hydrau
Publikováno v:
Nutrient Cycling in Agroecosystems. 73:213-226
New Zealand’s indirect nitrous oxide (N2O) emissions have been estimated to contribute approximately 23% of the national nitrous oxide inventory. However, there is great uncertainty about this figure. Currently the intergovernmental panel for clima
Autor:
Magnhild Sandberg-Wollheim, B. Giesser, G. S. Francis, M. Lopez-Bresnahan, M. Stam-Moraga, T. M. Goodwin, D. Frank, Peter Chang
Publikováno v:
Neurology. 65:802-806
Background: Although patients with multiple sclerosis (MS) are advised to stop interferon (IFN) beta-1a therapy before becoming pregnant, some patients become pregnant while on treatment. Methods: We examined individual patient data from eight clinic
Autor:
B Hurwitz, G. S Francis, C Bever, Markus Färkkilä, Yves Lapierre, Magnhild Sandberg-Wollheim, Jonathan L. Carter, P Chang
Publikováno v:
Journal of Neurology. 252:8-13
The EVIDENCE study was a direct comparative study of two dose regimens of interferon (IFN) beta-1a used in the treatment of relapsing-remitting multiple sclerosis (RRMS): 30 mcg intramuscularly once weekly (qw; n=338) and 44 mcg subcutaneously three
Publikováno v:
Nutrient Cycling in Agroecosystems. 67:245-254
Field trials were conducted during three years (1996–1998) to follow the fate of N fertiliser applied to spinach (Spinacea oleracea L.) grown over winter (May–September) in New Zealand. Urea labeled with 15N was applied to the spinach at differen
Publikováno v:
European Journal of Soil Science. 55:79-90
Summary Classical chemical fractionation of soil sulphur (S) into HI-reducible S and carbon-bonded S does not separate S in soil into fractions that have differing mineralization potentials. Other techniques are needed to separate organic S into more
Publikováno v:
The Journal of Agricultural Science. 131:299-308
Two field experiments in Canterbury, New Zealand, were conducted during 1993–95 following the ploughing of temporary pasture leys. These experiments investigated the effects of cover crop management on the accumulation of soil mineral N and nitrate