Nthaka organic kanthu ndi humus si ofanana. "Humus" amatanthauza gulu la humus lodziimira pawokha komanso losiyana, pomwe "dothi organic matter" ndi chinthu chomwe chimawononga pansi pamitengo yosiyana.
Humus yomwe timatchula pamodzi imaphatikizapo magulu awa:
Fulvic acid: humus wachikasu kapena wachikasu-bulauni, wosungunuka m'madzi pansi pazikhalidwe zonse za pH, ndipo ali ndi kulemera kochepa.
Humic acid: humus woderapo woderapo womwe umasungunuka m'madzi pokha pa dothi lalitali pH ndipo ali ndi kulemera kwa molekyulu kuposa wa fulvic acid.
Black humic acid: Nthaka yakuda, yosasungunuka m'madzi pamtengo uliwonse wa pH, imakhala yolemera kwambiri, ndipo sinapezekepo m'zinthu zamadzimadzi za humic acid.
Kugwiritsa ntchito zinthu zachilengedwe kumatha kuyambitsa tizilombo toyambitsa matenda m'nthaka. Dothi lamchenga limakhala ndi mphamvu yosinthira ma cations ndipo ndizovuta kusunga zopatsa thanzi. Chilala chikafalikira komanso kusowa kwa humus, dothi lamchenga silingathe kusunga madzi. Popeza madzi ndi zakudya zimangopezeka kwa kanthawi kochepa mutatha kugwiritsa ntchito, mchenga uli mu "phwando kapena njala".
Nthawi yotumiza: Oct-23-2020