Potassium considerations for southern Idaho soils

Westermann, D.T. and Tindall, T.A. (1997) Potassium considerations for southern Idaho soils. pp. 172-181. In: Tindall, Terry A. and Westermann, Dale (eds.) Proc. Western Nutrient Management Conf. USA-UT-Salt Lake City, 1997/03/06-07. Published for WNNC by Univ. of Idaho.

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Abstract

Potato tuber yields of over 500 cwt/A are being achieved by
many of Idaho's potato growers. At this production level, tubers
can remove over 200 lbs K/A. A recent study (Westermann and
Tindall, 1995) showed that many southern Idaho fields responded
to a K fertilizer application when the soil test K concentration
was less than 175 ppm K in top 12 inches of soil. That study
also showed that the K fertilization rate necessary to achieve
maximum yields at a given soil test K concentration was
significantly higher than that presently recommended in the
fertilizer guide for potatoes (McDole et at., 1987).

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	0930
Subjects:	Soil > Chemistry > Potassium Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:57
Last Modified:	22 Nov 2016 20:16
Item ID:	1081
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/1081