1. Kugwiritsa ntchito nayitrogeni Nayitrojeni ndi mpweya wopanda mtundu, wopanda poizoni, wopanda fungo. Chifukwa chake, nayitrogeni wa gasi wakhala akugwiritsidwa ntchito kwambiri ngati mpweya woteteza. Nayitrogeni wamadzimadzi wagwiritsidwa ntchito kwambiri ngati sing'anga yozizira yomwe imatha kukhudzana ndi mpweya. Ndi gasi wofunikira kwambiri. , mtundu wina...
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