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|Title: ||The composition of dirty water on dairy farms in Ireland|
|Authors: ||Martinez-Suller, L.|
Carton, Owen T.
Richards, Karl G.
predicting nutrient compostion
|Issue Date: ||2010|
|Citation: ||The composition of dirty water on dairy farms in Ireland. L. Martínez-Suller, G. Provolo, O.T. Carton, D. Brennan, L. Kirwan and K.G. Richards. Irish Journal of Agricultural and Food Research, vol. 49, no. 1, (2010), pp67-80|
|Series/Report no.: ||Irish Journal of Agricultural and Food Research;Vol. 49|
|Abstract: ||Considerable quantities of dirty water, composed of milking parlour wash-water, milk
spillages, runoff from cattle yard areas and, possibly, effluent from silage and manure, are produced on dairy farms. In Ireland, dirty water from dairy farm facilities is normally managed by spreading on, or irrigation to, land. It has considerable potential to cause water pollution due to its high pH, 5-day biochemical oxygen demand and its N and P concentrations. The objective of the present study was to contribute to better management of dirty water on dairy farms by providing estimates of its composition using rapid methods that can be easily used on farms. During the experiment, 34 samples were collected from the facilities on the dairy farm at Teagasc, Johnstown Castle (Wexford), between 27 January and 1 May, 2006. Dry matter and specific gravity provided the best indicator of biochemical oxygen demand, total nitrogen and phosphorous, and micro and macro nutrients. The nutrient concentration of dirty water can be
determined rapidly using either dry matter concentration or specific gravity, enabling
farmers to include this information in the nutrient management plan for their farm.|
|Appears in Collections:||Environment, Soils & Land Use|
IJAFR, Volume 49, 2010
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