Yield and quality of harvest products are affected by various factors: Apart from site conditions, type of cultivation, crop rotational systems, plant protection measures also fertilization plays a decisive role. In addition to macronutrients and other micronutrients, the element copper is involved in many essential metabolic processes. With Questuran®, Plonuran® WP and Plonuran® liquid, trace nutrients fertilizers that counteract copper deficiency are available. The fertilizers can be used according to the current requirements of the plants that can be determined via soil or plant analysis.

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