Search Results - "Vogeler, I."

Comparison of APSIM and DNDC simulations of nitrogen transformations and N2O emissions by Vogeler, I., Giltrap, D., Cichota, R.

“…Various models have been developed to better understand nitrogen (N) cycling in soils, which is governed by a complex interaction of physical, chemical and…”
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Deriving seasonally optimal nitrogen fertilization rates for a ryegrass pasture based on agricultural production systems simulator modelling with a refined AgPasture model by Vogeler, I., Cichota, R.

“…Productive pasture systems require a regular supply of mineral nitrogen (N) to replace the N removed through the export of animal products and other loss…”
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Development of an algorithm for relating pasture nitrogen status to yield response curves by Vogeler, I., Cichota, R.

“…Determination of optimum nitrogen (N) fertilization rates which maximize pasture growth is challenging due to variability in plant requirements and likely…”
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Evaluation of mitigation strategies for nitrate leaching on pasture-based dairy systems by Vogeler, I., Beukes, P., Burggraaf, V.

“…► Modelling shows efficient farm management (EF) can reduce farm scale N leaching. ► In three different years farm averaged N leaching was 29–55% lower in the…”
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Modelling nitrogen leaching from overlapping urine patches by Cichota, R., Snow, V.O., Vogeler, I.

“…Urine depositions have been shown to be the main source of N leaching from grazing systems and thus it is important to consider them in simulation models. The…”
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Modeling Denitrification: Can We Report What We Don't Know? by Grosz, B., Matson, A., Butterbach‐Bahl, K., Clough, T., Davidson, E. A., Dechow, R., DelGrosso, S., Diamantopoulos, E., Dörsch, P., Haas, E., He, H., Henri, C. V., Hui, D., Kleineidam, K., Kraus, D., Kuhnert, M., Léonard, J., Müller, C., Petersen, S. O., Sihi, D., Vogeler, I., Well, R., Yeluripati, J., Zhang, J., Scheer, C.

“…Biogeochemical models simulate soil nitrogen (N) turnover and are often used to assess N losses through denitrification. Though models simulate a complete N…”
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Evaluating the economic and production benefit of removing dairy cows from pastures in response to wet soil conditions by Laurenson, S., van der Weerden, T. J., Beukes, P. C., Vogeler, I.

“…This study used the DairyNZ Whole Farm Model to assess the cost-benefit of duration-controlled grazing (DCG) to reduce the time dairy cows spend on pastures…”
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Pedotransfer Functions for Estimating Ammonium Adsorption in Soils by Vogeler, I, Cichota, R, Snow, V.O, Dutton, T, Daly, B

“…Urine depositions by grazing animals induce high concentration of ammonium (NH4 +) in soils. The adsorption of NH4 + in the soil plays an important role in the…”
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Comparison between APSIM and NZ-DNDC models when describing N-dynamics under urine patches by Giltrap, DL, Vogeler, I, Cichota, R, Luo, J, van der Weerden, TJ, de Klein, CAM

“…Nitrous oxide (N ₂O) emissions from soil are the result of complex interactions between physical, chemical and biological processes. We compared two…”
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breakdown of water repellency and solute transport through a hydrophobic soil by Clothier, B.E, Vogeler, I, Magesan, G.N

“…Unsaturated infiltration into the Ramiha silt loam, an Andic Dystrochrept, follows the classic pattern. A rapid drop-off from a high flow rate, seemingly…”
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Plant uptake and leaching of copper during EDTA-enhanced phytoremediation of repacked and undisturbed soil by Thayalakumaran, T., Robinson, B.H., Vogeler, I., Scotter, D.R., Clothier, B.E., Percival, H.J.

“…EDTA-enhanced phytoremediation of copper contaminated soil was evaluated. Up to 740 μg g-1 of Na2H2 EDTA in solution was added to repacked soil columns, and…”
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impact of CCA-treated posts in vineyards on soil and ground water by Greven, M, Green,S, Robinson, B, Clothier, B, Vogeler, I, Agnew, R, Neal, S, Sivakumaran, S

“…Grapes in Marlborough are typically grown on a vertical shoot positioned trellis system (VSP). For this purpose Pinus radiata posts are treated with CCA, a…”
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Vadose zone processes and chemical transport: Solute movement through an allophanic soil by Magesan, G N, Vogeler, I, Clothier, B E, Green, S R, Lee, R

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Sulfate and Calcium Movement in an Allophanic Soil—The Relevance of Ion-Pair Adsorption in the Soil-Plant System by Cichota, R, Vogeler, I, Bolan, N.S, Clothier, B.E

“…Cooperative adsorption involving anions and cations, termed ion-pair adsorption (IPA), is reported to increase the retention of some ions in certain soils…”
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Solute movement through an allophanic soil by Magesan, G.N, Vogeler, I, Clothier, B.E, Green, S.R, Lee, R

“…Allophanic soils are widespread around the world, but little research has been done on their transport properties. This study reveals the effect of two soil…”
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Renovation of grasslands with grass and white clover – Effects on yield and carbon sequestration by Loges, R., Vogeler, I., Kluß, C., Hasler, M., Taube, F.

“…There is a pressing need to support farmers' decisions on grassland renovation, based on sound scientific evidence regarding its effects on productivity,…”
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Magnetic resonance imaging of hydrodynamic dispersion in a saturated porous medium by DEURER, M, VOGELER, I, CLOTHIER, B. E, SCOTTER, D. R

“…By using nuclear magnetic resonance imaging (NMRI) we have been able to analyse dispersion at the microscopic scale during steady-state flow through…”
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Horizontal and Vertical TDR Measurements of Soil Water Content and Electrical Conductivity by Nadler, Arie, Green, S. R., Vogeler, I., Clothier, B. E.

“…When time domain reflectometry (TDR) is used to measure soil water content (θ) and salinity, the probes can be installed either horizontally or vertically. We…”
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dielectric-water content relationship for sandy volcanic soils in New Zealand by Tomer, M.D, Clothier, B.E, Vogeler, I, Green, S

“…To measure soil water content (Theta) by time domain reflectometry (TDR), one must know the relationship between the soil's dielectric constant (K(a)) and…”
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Characterizing water and solute movement by time domain reflectometry and disk permeametry by Vogeler, I. (Massey Univ., Palmerston North, New Zealand.), Clothier, B.E, Green, S.R, Scotter, D.R, Tillman, R.W

“…To investigate a rapid, nondestructive way of characterizing solute transport properties, time domain reflectometry (TDR) and disk permeametry have been used…”
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