Groleaf NPK

We have created the GROLEAF range, fully water soluble plant nutrition products, containing 10 times more concentration of trace elements in a balanced NPK formula.
With the (optional) addition of our QPS45 complex, this product is more of a trace element product with the macronutrients N, P and K added.

This high concentration of chelated micronutrients allows us to combine crop nutrition and correction of micronutrient deficiencies all in one go. As such, GROLEAF formulas become unique multipurpose foliar nutrition products. In addition, due to an innovative humic/fulvic complex, our products provide valuable inputs, such as a biostimulant effect in plants.

The formulations are specifically designed for foliar application guaranteeing an optimal and prompt nutrient uptake through leaves, which is more efficient and faster than root uptake. There are several formulations to be applied at different crop stages.

Download the Groleaf product leaflet

In the following table we show the most used formulations for each crop growth stage:

Nitrogen Total (N)20.00%30.00%0.005.00%10.00%
Nitric Nitrogen (N-NO3)0.30%0.30%-5.00%2.75%
Ammoniacal Nitrogen (N-NH4)----7.25%
Ureic Nitrogen (N-NH2)19.70%29.70---
Phosphorous Pentoxide (P2O5), soluble in water20.00%10.00%40.00%10.00%40.00%
Potassium oxide (K2O), soluble in water20.00%10.00%40.00%43.00%10.00%
Boron (B), soluble in water0.20%0.20%0.20%0.20%0.20%
Copper (Cu), 100% EDTA-chelated,soluble in water0.05%0.05%0.05%0.05%0.05%
Iron (Fe), 100% EDTA-chelated, soluble in water0.40%0.40%0.40%0.40%0.40%
Manganese (Mn), 100% EDTA-chelated, soluble in water0.20%0.20%0.20%0.20%0.20%
Molybdenum (Mo), soluble in water0.005%0.005%0.005%0.005%0.05%
Zinc (Zn), 100% EDTA-chelated, soluble in water0.4%0.4%0.4%0.4%0.4%
QPS45 complex2.0%2.0%2.0%2.0%2.0%


The foliar dosage rate varies from 0.5 – 5 kg/ha with a maximum concentration of 0.5% (or 500 g/ 100 L water).
Specific application rates and timings can be found in our product brochure.