Field scale performance of a variable rate sprinkler for variable water and nutrient application

King, B.A. and Wall, R.W. and Kincaid, D.C. and Westermann, D.T. (1997) Field scale performance of a variable rate sprinkler for variable water and nutrient application. In: American Society of Agricultural Engr. 1997 Annual Intl. Meeting. USA-MN-Minneapolis, 1997/08/10-14.

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Abstract

A 3-span linear-move irrigation system was equipped with 32 prototype variable rate sprinklers. Water
application uniformity was measured over a 2.7X range in application rate. The measured application
uniformity was 90% or greater for all water application rates. Variable rate nitrogen application was
evaluated on a 1.1 ha area. Variable rate nitrogen application was within 4% of target application. The
variable rate sprinkler allows variable rate water application with minimal effect on water application
uniformity.

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	0948
Additional Information:	ASAE Paper #972216
Subjects:	Irrigation > Sprinkler irrigation Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:57
Last Modified:	21 Nov 2016 20:29
Item ID:	1086
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1086