THE ULTIMATE GUIDE TO NPK 20-20-15 Là Gì

Extra exactly, the primary variety ("N price") is The share of elemental nitrogen by fat while in the fertilizer; which is, the mass fraction of nitrogen times 100. The second selection ("P value") is The share by bodyweight of phosphorus pentoxide PIt definitely does pay out to look at the label – some kelp products comprise beside no potassium,