ABSTRACT
The effect of the irrigation and solar radiation incidence in a soil previously enrichad with anaerobic biodigestor effluent, source of organic matter, at experimental hydrographic basin was studied with the aim to evaluate the losses of nitrate content caused by the leaching and by different microclimates in the soil. dimicrosites. Analyzing the results it was observed that the irrigation during 21 days caused an appreciable loss of nitrate content in all slopes. With regard to effect of differential quantity of solar radiation and substrate (soil + effluent) it caused variations in temperature and moisture content to the extent to form different environments causing more intensive nitrate loss in the slopes with north exposition.
Key-words:
solar radiation; biodigestor effluent; temperature; moisture; organic matter