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The assessment and potential for mitigation of phosphorus losses from Organic soils under intensive dairying
(Lincoln University, 2016)
The development of marginal land under Organic soils for intensive agricultural use is commonplace around the globe, being driven by population growth and the limited availability of alternative, highly productive soils. ...
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 ...
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 ...
Discharge coefficients of flat-fan nozzles
(American Society of Agricultural and Biological Engineers, 2017)
The discharge coefficient (Cd) is a measure of how much of the pressure energy of a nozzle is converted into kinetic energy. With the discharge coefficient known, the exit velocity of the liquid sheet from the nozzle can ...
Export of nitrogen and phosphorus from artificially drained dairy pastures in the Hauraki Plains
(FLRC, 2017-02)
This work forms part of the MBIE-funded Transfer Pathways Programme, which targets quantification of the pathway-specific transfers of nitrogen (N) and phosphorus (P) from the land to receiving waters, taking lag times and ...
Potential pasture nitrogen concentrations and uptake from autumn or spring applied cow urine and DCD under field conditions
(MDPI, 2016-06)
Nitrogen (N) cycling and losses in grazed grassland are strongly driven by urine N deposition by grazing ruminants. The objective of this study was to quantify pasture N concentrations, yield and N uptake following autumn ...
Critical pathways programme: Unravelling sub-catchment scale nitrogen delivery to waterways
(Fertilizer and Lime Research Centre, Massey University, 2019)
To be effective and efficient, decision making on land use, land management, mitigation measures, as well as policy, need to be based on a clear understanding of cause-effect relationships. Present practice is to link ...
Fertiliser-coating technology to improve the efficiency of copper uptake in pastures
(Fertilizer and Lime Research Centre, Massey University, 2018)
Current practice for trace element (TE) application is to admix granular trace elements in with macro-elemental fertilisers. Although the correct rate of trace elements per hectare can be applied, the distribution of the ...
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 ...
Phosphorus response and optimum pH ranges of twelve pasture legumes grown in an acid upland New Zealand soil under glasshouse conditions
(Chilean Society of Soil Science (Sociedad Chilena de la Ciencia del Suelo), 2016-06)
Pasture legumes provide critical nitrogen inputs but fail to persist in typical acidic low P fertility upland soils. Alternative legume species for these environments are urgently sought. Twelve novel legume species were ...