Fertilizers
Stemma NPK Line
For an effective and complete mineral fertigation
Fertigation • Foliar
Stemma NPK is a product line composed by water-soluble microcrystalline fertilizers developed with high- quality substances, free from sodium, chlorides, carbonates and other insoluble or toxic substances.
To fulfill all the crops requirements during the different phenological stages.Multiple formulations are enriched with magnesium and micronutrients to sustain the nutritional intake and increase the efficacy of the product.
Composition % w/w
Physical and chemical properties
Composition % w/w
| Stema NPK | N-tot % | N-nit % | N-amm % | N-ur % | P2O5 sol in H2O % | K2O sol in H2O % | MgO sol in H2O % |
| 20-20-20+micro | 20 | 4.4 | 3 | 12.6 | 20 | 20 | – |
| 20-5-10-+2+micro | 20 | 7 | 13 | – | 5 | 10 | 2 |
| 13-8-24+3+micro | 13 | 6.8 | 6.2 | – | 8 | 24 | 3 |
| 12-36-12+2+micro | 12 | 3.5 | 8.5 | – | 36 | 12 | 2 |
| 10-50-10+micro | 10 | 12 | 8.8 | – | 50 | 10 | – |
| 8-7-40+2+micro | 8 | 7 | 1 | – | 7 | 40 | 2 |
| 6-21-36+3+micro | 6 | 6 | – | – | 21 | 36 | 3 |
Microelements in “Stemma NPK Line”: B 0.01 – Fe EDTA 0.02 – Mn 0.01 – Mo 0.001 – Zn 0.002
Physical and chemical properties
| Stema NPK | Water solubility at 20°C (g/l) | pH (1% w/w aqu. sol.) |
Electrical conductivity 1 g/l aqu. sol. (μS/cm) |
| 20-20-20+micro | 360 | 6.0±0.5 | 840 |
| 20-5-10-+2+micro | 375 | 6.0±0.5 | 1600 |
| 13-8-24+3+micro | 480 | 6.0±0.5 | 1650 |
| 12-36-12+2+micro | 435 | 5.5±0.5 | 1240 |
| 10-50-10+micro | 390 | 5.5±0.5 | 950 |
| 8-7-40+2+micro | 395 | 6.0±0.5 | 1300 |
| 6-21-36+3+micro | 430 | 5.5±0.5 | 1150 |