Kwenikweni zigawo zikuluzikulu za thewera la ana ndi pamwamba, pepala lakumbuyo, pakati, zotchingira zotayikira, tepi ndi bandi yotanuka m'chiuno. 1.Pamwamba: nthawi zonse ndi hydrophilic yopanda nsalu kuti madzi azitha kulowa mkati mwa thewera. Komabe, zitha kusinthidwa ndi ulusi wachilengedwe wozikidwa ndi mbewu, monga mu comp...
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