humus 8 [vynechat] pôda 5 [vynechat] soil 3 [vynechat] soil properties 3 [vynechat] vlastnosti pôdy 3 [vynechat] damage to soils 2 [vynechat] ekológia pôdy 2 [vynechat] organic fertilizers 2 [vynechat] organické hnojivá 2 [vynechat] poškodenie pôdy 2 [vynechat] pôdna biológia 2 [vynechat] pôdne organizmy 2 [vynechat] soil biology 2 [vynechat] soil ecology 2 [vynechat] soil organisms 2 [vynechat] soil use 2 [vynechat] využitie pôdy 2 [vynechat] agricultural soils 1 [vynechat] carbon compounds 1 [vynechat] composts 1 [vynechat] jačmeň jarný 1 [vynechat] komposty 1 [vynechat] kvalita pôdy 1 [vynechat] lesné ekosystémy 1 [vynechat] lesný humus 1 [vynechat] lúčne ekosystémy 1 [vynechat] morské riasy 1 [vynechat] plant growth regulators 1 [vynechat] plant nutrition 1 [vynechat] poľnohospodárska pôda 1 [vynechat]