pôda 2 [vynechat] soil 2 [vynechat] soil classification 2 [vynechat] soil properties 2 [vynechat] systematická pedológia 2 [vynechat] vlastnosti pôdy 2 [vynechat] damage to soils 1 [vynechat] degradácia pôdy 1 [vynechat] pedology 1 [vynechat] pedológia 1 [vynechat] soil fertility 1 [vynechat] úrodnosť pôdy 1 [vynechat]