Application recommendations for foliar fertilization with SOLU K 52

Application recommendations for foliar fertilization with SOLU K 52
Nutrient uptake is faster with foliar fertilization than with fertilization via the soil. The effect of foliar fertilization can therefore be tested specifically, inexpensively, quickly and easily with garden pump spray bottles.

Only small amounts of nutrients can be absorbed via the leaf in a short time. For the main nutrients, at least two or three fertilizations are therefore necessary. SOLU K 52 contains two main nutrients at the same time, namely potassium and sulfur as sulfate.

Foliar fertilization becomes particularly important under the following conditions:

• in case of acute nutrient deficiency
• in case of insufficient nutrient uptake via the soil, caused by:  

- lack of precipitation or inadequate irrigation, 
- an unfavorable pH value,
- soil compaction leading to poor or damaged root system.

The advantages of SOLU K 52 as a foliar fertilizer

SOLU K 52 contains two main nutrients: potassium and sulfur as sulfate. Both are present in a very high concentration: 52.5% K2O and 45% SO3.

Sulfur is a key factor in increasing nitrogen efficiency. Experiments show that the plant metabolizes nitrogen more efficiently when sulfur is provided via foliar application. The application also has a pH-neutral effect, so there is no soil acidification. On the other hand, significant improvements in quality and yield are recorded.

Potassium is needed by the plant for photosynthesis, it supports the activation of enzymes and the plants' natural resistance to pests, diseases, frost and drought stress. During growth, ensuring potassium uptake meets needs can be a challenge. Targeted foliar fertilization improves potassium uptake by the plant when potassium requirements are very high or when potassium uptake by the roots is limited.

During growth, ensuring potassium uptake meets needs based on the plant and its particular growth phase can be challenging. Targeted foliar fertilization will improve potassium uptake by the plant when potassium demand is very high or when potassium uptake by the roots is limited.

In the following, we have compiled application recommendations for different crops from practice that have proven successful so far. We would be pleased if you would share your results and findings with us in an exchange of experiences.