Hydroponics (soilless culture)
Our micronutrients are fully chelated and completely soluble in water. Some of them can be applied directly to the soil for root uptake, others via foliar sprays. They are compatible with a wide range of fertilizers and pesticides. Some are also eminently suited for use in soilless cultures (hydroponics), as there is no formation of precipitates within the active pH ranges. The most effective method of application will depend on location conditions, particularly the pH value of the soil or growth medium.
Environmental considerations are prompting a trend towards soilless culture in greenhouses. This requires stable liquid nutrient solutions to prevent the formation of precipitates in irrigation and recirculation systems and to avoid blocked drippers. AkzoNobel supplies chelated micronutrients specifically adjusted to this application.
In soilless culture the metal chelates, particular iron, have been shown to be indispensable. In cases where very high concentrations of iron chelates are used in stock solutions containing calcium nitrate, it is advised to use sulfate free iron chelates. The exceptionally pure chelated micronutrients developed by AkzoNobel, are especially suited for this.