Pesticide Leaching from Agricultural Fields with Ridges and Furrows

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Pesticide Leaching from Agricultural Fields with Ridges and Furrows

In the evaluation of the risk of pesticide leaching to groundwater, the soil surface is usually assumed to be level, although important crops like potato are grown on ridges. A fraction of the water from rainfall and sprinkler irrigation may flow along the soil surface from the ridges to the furrows, thus bringing about an extra load of water and pesticide on the furrow soil. A survey of the li...

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Acrylamide monomer leaching from polyacrylamide-treated irrigation furrows.

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Measurement and Computation of Movement of Bromide Ions and Carbofuran in Ridged Humic-Sandy Soil

Water flow and pesticide transport in the soil of fields with ridges and furrows may be more complex than in the soil of more level fields. Prior to crop emergence, the tracer bromide ion and the insecticide carbofuran were sprayed on the humic-sandy soil of a potato field with ridges and furrows. Rainfall was supplemented by sprinkler irrigation. The distribution of the substances in the soil ...

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Assessment of the predictive quality of simple indicator approaches for nitrate leaching from agricultural fields.

Diffuse N losses from agriculture are a major cause of excessive nitrate concentrations in surface and groundwaters. Leaching through the soil is the main pathway of nitrate loss. For environmental management, an anticipatory assessment and monitoring of nitrate leaching risk by indicator (index) approaches is increasingly being used. Although complex Nitrogen Loss Indicator (NLI) approaches ma...

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ژورنال

عنوان ژورنال: Water, Air, & Soil Pollution

سال: 2010

ISSN: 0049-6979,1573-2932

DOI: 10.1007/s11270-010-0389-x