Modelling options to increase milk production while reducing N leaching for an irrigated dairy farm in Canterbury
نویسندگان
چکیده
منابع مشابه
Characterizing sources of nitrate leaching from an irrigated dairy farm in Merced County, California.
Dairy farms comprise a complex landscape of groundwater pollution sources. The objective of our work is to develop a method to quantify nitrate leaching to shallow groundwater from different management units at dairy farms. Total nitrate loads are determined by the sequential calibration of a sub-regional scale and a farm-scale three-dimensional groundwater flow and transport model using observ...
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Emphasis on milk yield (MY) as well as milk yield persistency (MYP) and calving interval (CI) is necessary to achieve more sustainable productionin dairy cattle. Therefore the main objective of this study was to find an optimum regression model to estimate economic values for MY, MYP and CI.Using a deterministic bio-economic model, seventyfiveproduction states differing mainly in MY, MYPand CIw...
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ژورنال
عنوان ژورنال: Journal of New Zealand Grasslands
سال: 2017
ISSN: 2463-2880,2463-2872
DOI: 10.33584/jnzg.2017.79.569