Eitemau Tebyg

• Reducing ammonia loss from urea by mixing with humic and fulvic acids isolated from coal
  gan: Abdul Reeza, Ameera, et al.
  Cyhoeddwyd: (2009)
• Reduction of ammonia volatilization through mixing with humic and fulvic acids
  gan: Roslliza S., et al.
  Cyhoeddwyd: (2022)
• Reduction of ammonia loss by mixing urea with liquid humic and fulvic acids isolated from tropical peat soil
  gan: Kasim, Susilawati, et al.
  Cyhoeddwyd: (2009)
• Controlling ammonia volatilization by mixing urea with humic acid, fulvic acid, triple superphosphate and muriate of potash
  gan: Shamsuddin, Rosliza, et al.
  Cyhoeddwyd: (2009)
• Humic and fulvic acids : isolation, structure, and environmental role /
  Cyhoeddwyd: (1996)