Ukukhethwa kwezinto ezikrwada zesichumiso se-organic kunye ne-bio-organic fertilizer inokuba yimigquba eyahlukeneyo yemfuyo kunye nenkunkuma ephilayo.Ifomula yokuvelisa eyisiseko iyahluka kunye neentlobo ezahlukeneyo kunye nezixhobo eziluhlaza;ezona zixhobo zisisiseko zezi: umgquba wenkukhu, umgquba wamadada, umgquba werhanisi, umgquba wehagu, umgquba weenkomo kunye neegusha, umququ wezityalo, udaka lweshishini leswekile, intsalela, intsalela yebhiti yeswekile, iinkozo zedistiller, intsalela yamayeza, intsalela yefungus, iimbotyi. ikeyiki, ikeyiki yembewu yomqhaphu, ikeyiki ye-rapeseed, ilahle lengca, njl.