Szukana fraza: [Abstract = "The field surface balance aims to evaluate the degree of the soils' aggravation with fertilizing agents. Balancing these on the field surface and defining their excess as diffused into the environment, a level of nitrogen and phosphorus export from agricultural activity has been determined within seven partial drainage basins of Lake Slawskie. The result represents the yardstick of either aggravation or depravation of agriecosystems with respect to nitrogen and phosphorus."]

Wyników: 1