“…It is because P presents low efficiency as fertilizers in the soil [ [12] , [13] , [14] ]. Another limiting and important factor is that the most studied and easily accessible sources of P are being used in significant proportion, increasing the risk of a possible scarcity of these raw materials [ 15 ], making it necessary to search for alternative sources, and the application of swine manure is one of them [ 16 , 17 ].…”