Lysimetric research of nutrient losses from organic fertilizers
¹Institute of Environment, Lithuanian University of Agriculture. Studentų 11, LT-53356,Kaunas-Akademija, tel./fax. +370 37 752 202; e-mail: email@example.com.
²Institute of Environment, Lithuanian University of Agriculture. Studentų 11, LT-53356,Kaunas-Akademija, Kaunas district. Lithuania, tel./fax. +370 37 752 202;e-mail: firstname.lastname@example.org
In organic agricultural production high quality and safe agricultural products and foodstuffs are produced. It is believed that organic fertilizers are slower to wash out into water, because their mineralization is slow and hence water contamination with nitrogen compounds is smaller. The aim of this research is to assess the migration of nitrogen compounds in the soil-water system after application of organic fertilizers. The investigations were performed in an established site of eight lysimeters. They are filled with monoliths of equal soil. In July, plants growing in the lysimeters were fertilized with the following organic fertilizers: Biokalis, Biojodis, Provita, Horn Shavings, Horn Core Powder and different amounts of slurry. No fertilizers were used in lysimeter No. 8. Water quality parameters NO+2¯, NO3¯ and NH4 valueswere determined. Results show the influence of different organic fertilizers on the dynamics of nutrients in soil- water systems.