organic fertilizers organické hnojivá 4 [vynechat] farmyard manure 2 [vynechat] fertilizers 2 [vynechat] hnojivá 2 [vynechat] humus 2 [vynechat] maštaľný hnoj 2 [vynechat] composts 1 [vynechat] jačmeň jarný 1 [vynechat] komposty 1 [vynechat] morské riasy 1 [vynechat] plant growth regulators 1 [vynechat] plant nutrition 1 [vynechat] pôdy 1 [vynechat] regulátory rastu rastlín 1 [vynechat] seaweeds 1 [vynechat] soil fertility 1 [vynechat] soils 1 [vynechat] spring barley 1 [vynechat] výživa rastlín 1 [vynechat] úrodnosť pôd 1 [vynechat]