![Pile of 650 kilogram NPK fertilizer ( Yara Mila ) sacks for agricultural use , fertilizing grass fields , Finland Stock Photo - Alamy Pile of 650 kilogram NPK fertilizer ( Yara Mila ) sacks for agricultural use , fertilizing grass fields , Finland Stock Photo - Alamy](https://c8.alamy.com/comp/C27PTA/pile-of-650-kilogram-npk-fertilizer-yara-mila-sacks-for-agricultural-C27PTA.jpg)
Pile of 650 kilogram NPK fertilizer ( Yara Mila ) sacks for agricultural use , fertilizing grass fields , Finland Stock Photo - Alamy
Le N, le P et le K : le pourcentage indiqué sur les sacs. I. Exemple de l'Urée 23 kg d'Azote + 23 kg d'Azote = 46 kg dan
![L′acide humique NPK Engrais organiques (19-6-20) Sacs de 5 kg - Chine D′engrais organique, de potassium Humate L′acide humique NPK Engrais organiques (19-6-20) Sacs de 5 kg - Chine D′engrais organique, de potassium Humate](https://image.made-in-china.com/43f34j00PJtanmbWMZrw/NPK-Humic-Acid-Organic-Fertilizer-19-6-20-5kg-Bags.jpg)