Nitrogen Fractions in Soil Fertilized with Waste Organic Materials

The aim of the study was to determine effect sewage sludge and composts produced from municipal waste on content various forms nitrogen in soil. field experiment carried out 2004–2015. It included three crop rotations following plants: potato, spring barley, winter oilseed rape wheat. consisted treatments: control (without fertilization), NPK, manure (FYM), compost straw (CSSS), composted (CSS), dried granulated (DGSS), “Dano” unsorted (CUMW) green (CMGW). Manure, were applied once (10 t ha−1 d.m.) or twice (5 a rotation. significantly shown that highest N-total soil fertilized with CUMW (compost waste). (FYM) contained quantity N-min. prevalent pool (82.65–86.52%) N compounds not undergoing acid hydrolysis, their smallest share determined NPK alone.