Szukana fraza: [Abstract = "Schematic of study included five variants of fertilization of maize and spring oilseed rape with mineral fertilizers \(NK, NPK\) and mineral fertilizers and increas \- stającymi doses of ash from the incineration of municipal sewage sludge \(NK \+ P1 NK \+ P2, NK \+ P3\). The ash was treated as a substitute for phosphorus \- phosphorus cars ."]

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