TY JOUR TI CHANGES IN THE CHEMICAL COMPOSITION OF THE LIQUID FRACTION OF CATTLE MANURE DURING STORAGE KW cattle manure KW liquid fraction of manure KW chemical composition KW mineral nitrogen KW mobile phosphorus and potassium KW heavy metals JO Vestnik of Omsk SAU AU KURACHENKO, N.L. AU VLASENKO, O.A. AU KOLESNIK, A.A. AU KAZYULIN, L.F. PY 2025 IS 59 PB FSBEI HE Omsk SAU