(1) nitrogen: nitrogen nutrient element dị ka isi akụrụngwa nke fatịlaịza, gụnyere ammonium bicarbonate, urea, ammonium pin, amonia, ammonium chloride, ammonium sulfate, wdg (2) p: p nutrient ọcha dị ka isi akụrụngwa nke fatịlaịza, gụnyere sup nkịtị...
GỤKWUO