Soil fragmentation and friability: effects of soil water and soil management [5 papers included]

abonos agua del suelo compactage du sol cropping systems danemark denmark dinamarca eau du sol engrais estructura del suelo farmyard manure fertilisation fertilizer application fertilizers fracciones del suelo fraction du sol fumier labranza sandy soils sistema poroso del suelo sistemas de cultivo soil compaction soil pore system soil separates soil structure soil water sol sableux strength structure du sol suelo arenoso tillage travail du sol