TY CONF TI INFLUENCE OF SEWAGE SLUDGE ON THE YIELD AND CONTENT OF MAIN NUTRIENTS IN THE STRAW OF LEGUMINES-CEREALS AND CEREAL GRASSES KW sewage sludge KW organic fertilizers KW vetch-oat mixture KW perennial ryegrass KW NPK in plants JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU El'shaeva, I.V. AU Pinaeva, A.S. AU Titova, V.I. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS