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Ammonium Sulphate
Manyowa abwino a nayitrogeni (omwe amadziwika kuti fetereza m'munda wa ufa) ndioyenera nthaka komanso mbewu. Zitha kupangitsa nthambi ndi masamba kukula mwamphamvu, kusintha zipatso ndi zipatso, ndikuthandizira kulimbana ndi masoka pakagwa masoka. Itha kugwiritsidwa ntchito ngati feteleza woyambira, feteleza wopota komanso feteleza wa mbewu.
