Search Results - "Saffigna, P G"

Carbon and nitrogen dynamics under windrowed residues during the establishment phase of a second-rotation hoop pine plantation in subtropical Australia by Blumfield, T.J., Xu, Z.H., Saffigna, P.G.

“…The dynamics of carbon (C) and nitrogen (N), derived from the decomposition of windrowed harvest residues, was examined in the establishment phase of a second…”
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Genetic variation in foliar carbon isotope composition in relation to tree growth and foliar nitrogen concentration in clones of the F1 hybrid between slash pine and Caribbean pine by PRASOLOVA, N. V, XU, Z. H, LUNDKVIST, K, FARQUHAR, G. D, DIETERS, M. J, WALKER, S, SAFFIGNA, P. G

“…The objectives of this study were: (1) to quantify the genetic variation in foliar carbon isotope composition ( delta super(13)C) of 122 clones of ca…”
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Effect of fertilizer placement on nitrogen loss from sugarcane in tropical Queensland by Prasertsak, P, Freney, J.R, Denmead, O.T, Saffigna, P.G, Prove, B.G, Reghenzani, J.R

“…This paper reports on the fate of nitrogen (N) in a first ratoon sugarcane (Saccharum officinarum L.) crop in the wet tropics of Queensland when urea was…”
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Spatial–temporal variability of soil moisture, nitrogen availability indices and other chemical properties in hoop pine ( Araucaria cunninghamii) plantations of subtropical Australia by Prasolova, N.V, Xu, Z.H, Saffigna, P.G, Dieters, M.J

“…The spatial variability of soil moisture, nitrogen (N) availability indices (total N, NO 3 −–N, NH 4 +–N, potential mineralizable N (PMN)), and other chemical…”
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Some nutrient dynamics associated with litterfall and litter decomposition in hoop pine plantations of southeast Queensland, Australia by Bubb, K.A., Xu, Z.H., Simpson, J.A., Saffigna, P.G.

“…Litterfall was collected over a 12-month period with littertraps in hoop pine ( Araucaria cunninghamii) plantations aged 10, 14 and 62 years in southeast…”
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Fate of urea nitrogen applied to a banana crop in the wet tropics of Queensland by Prasertsak, P, Freney, J R, Saffigna, P G, Denmead, O T, Prove, B G

“…This paper reports a study in the wet tropics of Queensland on the fate of urea applied to a dry or wet soil surface under banana plants. The transformations…”
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Potential for denitrification in cereal soils of northern Australia after legume or grass–legume pastures by Pu, Guixin, Saffigna, Paul G., Strong, Wayne M.

“…A period of legume pastures can lead to a significant accumulation of soil nitrogen and organic carbon that could influence soil N transformations, including…”
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Acid sulfate soils in intertidal mosquito breeding habitats and implications for habitat modification by Saffigna, P G, Dale, P E

“…Public concern about the use of chemicals for mosquito control in coastal Australia has lead to the development of physical habitat modification methods that…”
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Nitrogen cycling in leucaena (Leucaena leucocephala) alley cropping in semi-arid tropics: II. Response of maize growth to addition of nitrogen fertilizer and plant residues by XU, Z.H., MYERS, R.J.K., SAFFIGNA, P.G., CHAPMAN, A.L.

“…In an alley cropping system, prunings from the hedgerow legume are expected to supply nitrogen (N) to the associated cereal. However, this may not be…”
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Rates of ammonium turnover and the role of amino-acid deamination in seagrass (Zostera capricorni) beds of Moreton Bay, Australia by BOON, P. I, MORIARTY, D. J. W, SAFFIGNA, P. G

“…Samples of sediments from Australian seagrass (Zostera capricorni Aschers.) beds were taken in June to August 1983 (for super(15)N experiments) and November…”
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How does residue management impact soil organic matter composition and quality under Eucalyptus globulus plantations in southwestern Australia? by Mathers, Nicole J., Mendham, Daniel S., O’Connell, Anthony M., Grove, Timothy S., Xu, Zhihong, Saffigna, Paul G.

“…This study investigated the influence of harvest residue management practices on soil organic matter (SOM) composition and quality from two second-rotation…”
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Nitrate metabolism in sediments from seagrass (Zostera capricorni) beds of Moreton Bay, Australia by BOON, P. I, MORIARTY, D. J. W, SAFFIGNA, P. G

“…The fate of nitrate in sediments from seagrass (Zostera capricorni Aschers.) beds of Moreton Bay on the subtropical eastern coast of Queensland, Australia, was…”
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The use of 13C-NMR for studies of wheat straw decomposition by Cogle, A.L. (Griffith Univ., Nathan (Australia). School of AES), Saffigna, P.G, Barron, P.F

“…13C-NMR was used to study the field decomposition of surface retained and incorporated wheat straw. Results showed decreasing proportions of straw carbon as…”
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Impacts of repeated fuel reduction burning on tree growth, mortality and recruitment in mixed species eucalypt forests of southeast Queensland, Australia by Guinto, Danilo F, House, Alan P.N, Xu, Zhi Hong, Saffigna, Paul G

“…The long-term effects of repeated prescribed burning on diameter growth of trees in mixed species dry and wet sclerophyll forest sites in southeast Queensland,…”
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Grain yield of Pennisetum americanum adjusts to nitrogen supply by changing rates of grain filling and root uptake of nitrogen by Coaldrake, P.D, Pearson, C.J, Saffigna, P.G

“…Coaldrake, P. D., Pearson, C. J. and Saffigna, P. G. 1987. Grain yield of Pennisetum americanum adjusts to nitrogen supply by changing rates of grain filling…”
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Cabbages as a Nutrient Sink for Food Processing By-products by Matthew, P.L, Birch, C.J, Saffigna, P.G

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Lysimeter and field measurements of chloride and bromide leaching in an uncultivated loamy sand by Saffigna, P. G., Keeney, D. R., Tanner, C. B.

“…Field and lysimeter measurements were made of Cl and Br leaching in a Plainfield loamy sand at Hancock, Wisconsin. Chloride and Br were excellent companion…”
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Retention of cotton stubble enhances N fertilizer recovery and lint yield of irrigated cotton by Rochester, I.J., Constable, G.A., Saffigna, P.G.

“…Cotton ( Gossypium hirsutum L.) stubble is normally slashed and incorporated in Australian cotton production, but in recent years, some growers have raked and…”
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Carbon isotope discrimination and oxygen isotope composition in clones of the F(1) hybrid between slash pine and Caribbean pine in relation to tree growth, water-use efficiency and foliar nutrient concentration by Xu, Z. H., Saffigna, P. G., Farquhar, G. D., Simpson, J. A., Haines, R. J., Walker, S., Osborne, D. O., Guinto, D.

“…The objectives of this study were: (1) to examine how foliar carbon isotope discrimination (Delta) and oxygen isotope composition (delta(18)O) are related to…”
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Nitrogen cycling in leucaena (Leucaena leucocephala) alley cropping in semi-arid tropics: I. Mineralization of nitrogen from leucaena residues by XU, Z.H., SAFFIGNA, P.G., MYERS, R.J.K., CHAPMAN, A.L.

“…The success of alley cropping depends to a large extent on the efficiency of transfer of nitrogen (N) from the legume hedgerow plants to the non-legume crop…”
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