eprintid: 185
rev_number: 12
eprint_status: archive
userid: 1
dir: disk0/00/00/01/85
datestamp: 2010-11-20 21:50:59
lastmod: 2017-03-07 23:07:13
status_changed: 2010-11-20 21:50:59
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Carter, D.L.
creators_name: Bondurant, J.A.
creators_name: Robbins, C.W.
title: Water Soluble NO3-Nitrogen, PO4-Phosphorus, and Total Salt Balanced on a Large Irrigation Tract
ispublished: pub
subjects: unclass
divisions: d_unclass
abstract: Return flow from a 82,030-ha (202,700-acre) tract of calcareous
silt loam soils irrigated with water diverted from the
Snake River in southern Idaho increased the downstream total
soluble salt and NO?-N loads, but decreased the downstream
PO?-P load. Under the existing water management practice,
50% of the total input water returned to the Snake River as
subsurface drainage. Net total soluble salt output was 2.4 metric
tons/ha (1.0 English ton/acre) and, on the average, was considerably
greater than necessary to maintain a salt balance. Net
NO?-N output was 33 kg/ha (30 lb/acre). Only about 30% as
much PO?-P left the tract via drainage water as entered the
tract in irrigation water. As water passed through the soil,
PO?-P was removed by chemical reactions in the soil, thus
decreasing the concentration in the subsurface drainage water
and decreasing the downstream PO?-P load. Applied P fertilizer
was not leached into the drainage water.
date: 1971
date_type: published
id_number: 0168
full_text_status: public
publication: Soil Science Society of America Proceedings
volume: 35
number: 2
pagerange: 331-335
refereed: unknown
citation:   Carter, D.L. and Bondurant, J.A. and Robbins, C.W.  (1971) Water Soluble NO3-Nitrogen, PO4-Phosphorus, and Total Salt Balanced on a Large Irrigation Tract.   Soil Science Society of America Proceedings.      35(2):331-335.               
document_url: https://eprints.nwisrl.ars.usda.gov/id/eprint/185/1/168.pdf