Effect of premixing phosphatic fertilizers with farm yard manure on the yield of wheat

abonos fosfatados abonos nitrogenados abonos np abonos potasicos ammonium phosphate application rates composition globale cost benefit analysis crop yield dose d'application engrais np engrais potassique farmyard manure fosfato de amonio fumier nitrogen fertilizers nitrogen phosphorus fertilizers phosphate d'ammonium phosphate fertilizers potash fertilizers proximate composition rendement des cultures rendimiento de cultivos superfosfato superphosphate triticum aestivum urea uree