Potassium nitrate (potassium saltpeter, nitrate of potassium) - a dual-complex fertilizer suitable for various soils, especially for crops sensitive to chlorine (flax, potatoes, tobacco, grapes).
Mass fraction of nitrogen (N) — 13.5%, potassium (K2O) — 37.6%.
Potassium nitrate is an excellent form of potassium fertilizer for potatoes and cabbage. These crops are fertilized during hilling when the foliage is well-developed, and an excess of nitrogen should be avoided. In this case, potassium nitrate is an effective fertilizer, as it contains 3.5 times less nitrogen than potassium.
Recommended application rate per 1 m²:
- Base application for all crops — 15-20 grams of potassium nitrate.
- Fertilization for vegetable and fruit-bearing crops — 10-15 grams of potassium nitrate.
- Liquid fertilization — 30-40 grams of potassium nitrate per 10 liters of water (1 liter per plant, 0.5 liters per cucumbers).
Alternate names: PN, KN, Potassium saltpeter, Indian saltpeter, Salt of Peter, KNO3.
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