Phosphorus Movement in Calcareous Soils Irrigated with Waste Water from Potato Processing Plants

Robbins, C.W. and Smith, J.H. (1977) Phosphorus Movement in Calcareous Soils Irrigated with Waste Water from Potato Processing Plants. Journal of Environment Quality. 6(2):222-225.

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Abstract

Total, organic, and acid-hydrolyzable phosphorus and orthophosphate
concentrations were determined in waste waters from
five potato (Solanum tuberosum L.) processing plants and the
waste water volumes applied to cropped land were measured monthly
for three processing seasons. These P forms were also measured
in soil water samples extracted monthly at five depths to 1.5 m.
Organic plus hydrolyzable fractions comprised 60 to 70% of the
total P in the waste waters and 30 to 40% in the soil water extracts.
When the numerical value of the relationship (kg P/ha applied per
month) (mm of clay size material in 1.5 m)-¹ was <0.4, the total P
concentration in the extracts at 1.5 m was <0.05 mg/liter. When
the value exceeded 0.4, the total P concentrations in the extracts
averaged 1 to 2 mg/liter. The relationship may provide disposal site
selection and waste water application rate guidelines for land disposal
of waste water high in organic and hydrolyzable P.

Item Type:	Article
NWISRL Publication Number:	0387
Subjects:	Irrigated crops > Potato Soil > Calcareous soil Soil > Chemistry > Phosphorous Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:51
Last Modified:	06 Feb 2017 17:26
Item ID:	327
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/327