Zobrazeno 1 - 10
of 14
pro vyhledávání: '"DJ McLennan"'
Autor:
DJ McLennan, Ross Darnell, S. G. Morris, D. W. Hennessy, P. J. Williamson, Robert J. Farquharson
Publikováno v:
Animal Science. 66:93-104
Subtropical grasslands are low in organic matter digestibility (OMD) (0·60) and nitrogen (N) (15 g/kg) for much of the year and this limits cattle production which is characterized by low calving rates and low weaning weights. Production has been ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbcba7f26eba3d803eb0646d64b255d8
https://doi.org/10.1017/s1357729800008870
https://doi.org/10.1017/s1357729800008870
Publikováno v:
Australian Journal of Experimental Agriculture. 38:813
Summary. The effect of continuous grazing on pasture composition and quality was assessed on 2 pasture types in a subtropical environment. The pastures were native stocked at 1 cow/2.5 ha, and previously improved stocked at 1 cow/1.6 ha. In August 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8100ff7587a77c0b8d1481fb26194c3a
https://doi.org/10.1071/ea98078
https://doi.org/10.1071/ea98078
Publikováno v:
Australian Journal of Experimental Agriculture. 36:1
Giant Parramatta grass (GPG) (Sporobolus indicus var. Major), a serious weed of pastures of subtropical Australia, is poorly grazed by cattle leading to reports of low production on badly infested pastures. To provide information for cattle producers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11ce008019a11c45241f4b7552f1d142
https://doi.org/10.1071/ea9960001
https://doi.org/10.1071/ea9960001
Publikováno v:
Australian Journal of Experimental Agriculture. 33:425
Phosphorus (P) as superphosphate was applied at 0, 12, 24, and 48 kg P/ha each year from 1972 to 1980 to an established white clover (Trifolium repens) and carpet grass (Axonopus affinis) pasture, to measure long-term changes in soil fertility and pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1b17fde724692b6a65a47f5ad4df4c8
https://doi.org/10.1071/ea9930425
https://doi.org/10.1071/ea9930425
Autor:
DJ McLennan
Publikováno v:
Australian Journal of Chemistry. 31:1897
Free energies of activation for the reactions: ������������� Nu-+MeX → MeNu+X- (Nu = nucleophile, X = halogen) are calculated by a quasi-thermodynamic cycle. The six steps involved are: (i) desolvation and escape into the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2a8d89fe29e86bd2ac858b4c9f8e97a
https://doi.org/10.1071/ch9781897
https://doi.org/10.1071/ch9781897
Autor:
DJ McLennan, RJ Wong
Publikováno v:
Australian Journal of Chemistry. 29:787
Rate constants for the dehydrochlorination of the title compounds by anionic bases in alcoholic solvents are those for simple proton transfer. Rate and estimated equilibrium data for these reactions can be approximately analysed in terms of the Marcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::120b16e905be398f634b7ee46ffedb02
https://doi.org/10.1071/ch9760787
https://doi.org/10.1071/ch9760787
Autor:
DJ McLennan
Publikováno v:
Australian Journal of Chemistry. 35:1045
Kinetic hydrogen isotope effects for the reaction C2H6 + CDB → C2H5 + CHD3 have been calculated for a large number of transition state models, bond orders being based on an ab initio structure for the ethyl radical. Various empirical relationships
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77d8c58d6aadff4f362d7e2004e39f1
https://doi.org/10.1071/ch9821045
https://doi.org/10.1071/ch9821045
Publikováno v:
Australian Journal of Chemistry. 37:497
The 13C n.m.r. spectra of 17 monosubstituted benzenes, 14 para substituted acetanilides and ten 4'-nitrophenyl 4-substituted benzoates have been measured in (CD3)2SO and the chemical shifts have been compared with the infrared carbonyl stretching fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9884b956af18a936e4c222a7042a8981
https://doi.org/10.1071/ch9840497
https://doi.org/10.1071/ch9840497
Autor:
PL Martin, DJ McLennan
Publikováno v:
Australian Journal of Chemistry. 32:2361
The factual basis of, and the theoretical reasoning behind, a recent suggestion by Poh that transition state structures may or may not vary according to the severity of substituent change are critically examined in terms of currently held views. Both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cdf88269455c7a607d19c2436793b4c
https://doi.org/10.1071/ch9792361
https://doi.org/10.1071/ch9792361
Autor:
DJ McLennan
Publikováno v:
Australian Journal of Chemistry. 36:1521
The abnormally large primary hydrogen and carbon kinetic isotope effects found in the deprotonation of 2-nitropropane by hindered pyridine bases are investigated by means of model calculations. Transition-state models have been varied between tight a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::440e5594a22d417095646259038eb03a
https://doi.org/10.1071/ch9831521
https://doi.org/10.1071/ch9831521