Nitrate migration in soil profile

Abstract

The contamination of surface and underground water with nitrates is one of the main concerns in nature protection. In the Lithuania the rainfall exceeds significantly the evaporation contributing to soil rinsing and consequently the process of salt leaching of the soil profile and salt production over reclamation area. Nitrogen is lightly washed out as nitrate due to lack of resistance in soil. The investigations of the dynamics of nitrate migration in cores of the original structure evidenced subject to water relationship of soil nitrate diffusion under the utmost soil water conditions, and nitrate migration is 30 time slower than under convective transport of substances.