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|Title: ||Dairying and the environment|
|Author: ||Di, Hong J.|
Cameron, Keith C.
|Date: ||Jun-2001 |
|Publisher: ||South Island Dairy Event (SIDE).|
|Item Type: ||Conference Contribution - Paper in Published Proceedings|
|Abstract: ||Over the past decade, there has been a rapid increase in dairy farming in the South Island.
A number of the newly established dairy farms are on free-draining course-textured or stony
soils. Nitrate leaching from intensive agricultural systems, such as dairy farms, is considered a
major contributor to increased nitrate concentrations in ground and surface waters (Cameron et
al.,1997). The objective of this research programme was to determine nitrate leaching losses on
dairy pasture systems as affected by the application of dairy shed effluent (DSE), nitrogen (N)
fertilisers and cow urine on free-draining soils using large, undisturbed soil lysimeters. The data
obtained were used to develop a simple, semi-empirical computer model to estimate nitrate
leaching losses and critical N application rates in order not to exceed the drinking water
standard of nitrate (11.3 mg NIL) in the drainage water.|
|Description: ||Paper presented at South Island Dairy Event (SIDE) conference, 25-27 June 2001, Christchurch.|
|Persistent URL (URI): ||http://hdl.handle.net/10182/3711|
|Rights: ||copyright © South Island Dairy Event (SIDE).|
|Appears in Collections:||Department of Agricultural Sciences|
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