plant nutrition 3 [vynechat] výživa rastlín 3 [vynechat] Helianthus annuus 1 [vynechat] cultivated plants 1 [vynechat] fertilizing 1 [vynechat] hnojenie 1 [vynechat] humus 1 [vynechat] hydroponics 1 [vynechat] hydropónia 1 [vynechat] jačmeň jarný 1 [vynechat] korene rastlín 1 [vynechat] organic fertilizers 1 [vynechat] organické hnojivá 1 [vynechat] pestovanie rastlín 1 [vynechat] pestované rastliny 1 [vynechat] plant growth regulators 1 [vynechat] plants cultivation 1 [vynechat] regulátory rastu rastlín 1 [vynechat] roots (botany) 1 [vynechat] slnečnica ročná 1 [vynechat] spring barley 1 [vynechat]