Influence of organic-mineral fertilization originating from brown coal on the improvement of sorption and retention properties of sandy soils

abonos organominerales analytical methods arena bois carbon charbon chemicophysical properties coal fertilisation fertilizer application field experimentation madera mejora de suelos muestreo organomineral fertilizers poland pologne polonia sable sampling sand sandy soils soil soil improvement soil sorption soil types soil water retention sol sol sableux sorption du sol suelo suelo arenoso technique analytique tipos de suelos type de sol wood