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Now showing items 31-40 of 48
Yield and water use of a ryegrass/white clover sward under different nitrogen and irrigation regimes
(NZGA, 2013)
We investigated how N availability affected the water-use efficiency (WUE) of a perennial ryegrass/white clover sward under different soil moisture regimes at Lincoln. Four combinations of ± N fertiliser and ± irrigation ...
Plantain silage quality under variable management practices
(New Zealand Grassland Association, 2018-11-17)
Two studies investigated the effect of regrowth and additives on preservation and quality of plantain ensiled in spring using a micro-silage technique. Study 1 compared the effect of regrowth at four (4L), five (5L) or six ...
Optical sensors for variable rate nitrogen application in dairy pastures
(New Zealand Grassland Association, 2017)
Reducing the amount of nitrogen (N) fertiliser applied to dairy pastures down to agronomically optimised levels would have positive economic and environmental results. The ability of commercially available optical sensors ...
Whole-farm modelling using different grazing-management strategies with diverse pastures within an irrigated dairy-farm system
(New Zealand Society of Animal Production (Inc), 2018)
The objective of this study was to assess the effect of diverse pasture mixtures and grazing management on profitability of Canterbury dairy farms using a commercial modelling tool, Farmax Dairy Pro. Two years of pasture ...
Active light sensing of canopies in crop management: Pastures and arable crops
(Fertilizer and Lime Research Centre, 2015-02)
A field spectrometer with an active light source was tested as a potential canopy sensor for dairy pastures (‘TEC-5’, YARA). To study the applicability of the sensor on pasture for the intensive radiation conditions of NZ ...
Management zone delineation in arable crop systems
(Fertilizer and Lime Research Centre, 2015)
Management Zone Delineation (MZD) could be of increasing importance for its economic and environmental benefits through varying rates of crop inputs to meet site-specific demands across individual ...
Comparison of three plant growth regulators and urea on a Canterbury dairy pasture
(Fertilizer and Lime Research Centre, 2011-02)
Two plant growth regulator (PGR) products currently available in New Zealand and a new Ravensdown PGR product-ExpressTM*, all based on gibberellic acid (GA3), were applied to a Canterbury dairy pasture in late winter ...
Flowability testing for aerial lime
(Fertilizer and Lime Research Centre, Massey University, 2019)
The Civil Aviation Authority (CAA) requires that topdressing aircraft are capable of jettisoning 80% of the aeroplane’s maximum hopper load within five seconds of the pilot initiating the jettison action. For granulated ...
Soil inorganic nitrogen in spatially distinct areas within a commercial dairy farm in Canterbury, New Zealand
(New Zealand Grassland Association, 2017)
For precision nitrogen (N) fertilisation of grazed dairy paddocks, soil N distribution needs to be quantified. It is expected that farm infrastructure will affect inorganic-N distribution due to its influence on cow grazing ...
Effective bout widths for uniform spread of lime from ground spreaders
(Fertilizer and Lime Research Centre, 2019)
There is a strong correlation between crop yields and evenness of application of lime. Lime is the most widely used fertiliser/soil conditioner product in New Zealand, but it is not very mobile in the soil, so it is important ...