Search Results - "Saffigna, P.G"

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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Cabbages as a Nutrient Sink for Food Processing By-products by Matthew, P.L, Birch, C.J, Saffigna, P.G

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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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An indirect method for estimating 15N isotope fractionation during nitrogen fixation by a legume under field conditions by Doughton, J.A. (Queensland Dept. of Primary Industries, Roma, Qld. (Australia)), Vallis, I, Saffigna, P.G

“…A new technique is proposed for measuring ¹⁵N isotope fractionation during N fixation that obviates some of the possible disadvantages of existing methods…”
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Decomposition of nitrogen-15 labeled hoop pine harvest residues in subtropical Australia by Blumfield, T.J, Xu, Z, Mathers, N.J, Saffigna, P.G

“…Information on decomposition of harvest residues may assist in the maintenance of soil fertility in second rotation (2R) hoop pine plantations (Araucaria…”
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Genetic variation in foliar carbon isotope composition in relation to tree growth and foliar nitrogen concentration in clones of the F 1 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 (δ 13 C) of 122 clones of ca. 4-year-old F 1…”
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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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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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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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Impact of land-use on soil organic matter quality in south-western Australia—characterization with 13C CP/MAS NMR spectroscopy by Mendham, D.S., Mathers, N.J., O'Connell, A.M., Grove, T.S., Saffigna, P.G.

“…The influence of change in land-use from native vegetation to pasture (20–71 yr after conversion), and subsequent change from pasture to eucalypt plantation…”
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Nitrogen cycling in leucaena (Leucaena leucocephala) alley cropping in semi-arid tropics. 1. Mineralization of nitrogen from leucaena residues by Xu, Z.H. (Griffith Univ., Queensland (Australia). Div. of Environmental Sciences), Saffigna, P.G, Myers, R.J.K, Chapman, A.L

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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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Nitrogen cycling in leucaena (Leucaena leucocephala) alley cropping in semi-arid tropics. 2. Response of maize growth to addition of nitrogen fertilizer and plant residues by Xu, Z.H. (Griffith Univ., Queensland (Australia). Div. of Environmental Sciences), Myers, R.J.K, Saffigna, P.G, Chapman, A.L

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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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Factors controlling ammonia loss from trash covered sugarcane fields fertilized with urea by Freney, J. R., Denmead, O. T., Wood, A. W., Saffigna, P. G., Chapman, L. S., Ham, G. J., Hurney, A. P., Stewart, R. L.

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Nitrogen fertilizer in leucaena alley cropping. II. residual value of nitrogen fertilizer and leucaena residues by Xu, Z. H., Myers, R. J. K., Saffigna, P. G., Chapman, A. L.

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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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