Characteristics of compost produced from Hanwoo (Korean native cattle) farm

Abstract

This study analyzed 51 compost samples from Korean native cattle (Hanwoo) farms.The mean levels of N, P 2 O 5 , and K 2 O in Hanwoo manure composts were 1.05%, 1.09%, and 1.09%, respectively. The mean levels of NH 4 -N, NO 3 -N, and NH 4 -N/NO 3 -N ratio were 831 mg/kg, 685 mg/kg, and 1.78, respectively. The average organic matter, moisture, and NaCl contents were 32.82%, 54.32%, and 1.85%, respectively. The average heavy metal content in the Hanwoo manure compost was as follows: Pb 2.51 mg/kg, Cr 3.21 mg/kg, Cu 47.53 mg/kg, Ni 1.71 mg/kg, Zn 205.76 mg/kg. No pathogenic microorganisms were detected in all samples, and compost maturity was evaluated as "mature" (Germination Index 80).