Humic Acid Urea

1 Zonsezi ndi humic acid urea.
(2) Kuti tipange mankhwalawa, ma humic acid omwe tidagwiritsa ntchito ndi osungunuka a humic acid, kutanthauza kuti ndi mineral fulvic acid.
(3) Monga latsopano wobiriwira chilengedwe chitetezo zachilengedwe fetereza ndi yaitali pang'onopang'ono kumasulidwa nayitrogeni fetereza, si ali ndi ntchito zisanu za asidi humic mu ulimi: kuwongolera nthaka, kulimbikitsa feteleza Mwachangu, zolimbikitsa zomera kukula, utithandize zomera nkhawa kukana, kuwongolera khalidwe la mankhwala, komanso amatha kulamulira bwino kumasulidwa ndi kuwonongeka kwa urea.