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(Article of periodic en Anglais - 1987)

Document title

Flow and chemical composition of drainage water from farmland in the Belgian loamy region. Part 2. Patterns of irons leaching with particular reference to nitrate

Authors(s) and Affiliation(s)

BOCKEN P. ;

Abstract

The nitrate quality limit of 50 mg NO3/l could be exceeded in the autumn, winter or spring, depending on the soil mineral nitrogen content and rainfall. Nitrogen leaching losses were related to rainfall distribution and agricultural practices. They were lower for land under cereals than under sugar-beets. When the available nitrogen for leaching was high, nitrate and chloride were not leached together. At this moment, the NO3 concentration was positively related with the flowrate and the Ca content, but negatively with the Cl content. Relation between flow and nitrate concentration is discussed in terms of possible water flow, piston flow or macropores flow. - (L'A.)

Source

Article of periodic

published at : Pédologie / ISSN 0079-0419 / CODEN PEDOAE

Editor : Société belge de pédologie, Gent - BELGIQUE (1951- 1993)

Millesime : 1987, vol. 37 [pp. 117-136]

Bibliographic references : 28 réf.

Language

Anglais

INIST-CNRS, Cote INIST : 9461

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