Verno FG Cu30+Zn30 is a combined copper and zinc foliar applied fertiliser for the correction of copper and zinc deficiencies. Verno FG Cu30+Zn30 contains micronized particles of cuprous oxide and zinc oxide, which adhere strongly to plant surfaces, providing a reservoir of slow release copper and zinc that provide nutrients when the plant needs it.
The copper and zinc oxides are micronized and formulated together as water dispersible granules for uniform mixing and ease of handling. Micronisation gives optimum coverage and retention with the product persisting on the leaf as a slow release source of nutrients.
Copper as a trace element is essential for many plant functions. It is a catalyst in both photosyntesis and respiration, and responsible for the structural strength of cells by the formation of lignin. Moreover, Copper is involved in carbohydrate and protein metabolism thus playing a key role in flower and seed formation. Copper deficiency cause a delay in maturity and senescence affecting grain yield considerably. Stem bending and susceptibility to disease are also consequences of Copper shortage.
Zinc is also essential for many plant functions. Besides its main role in the formation of growth hormone Auxin, this element is known as well for its positive influence in RNA syntesis. It is also necessary for the formation of chlorophyll and carbohydrates (starch), and for proper root development. Zinc deficiencies of plants are dramatic because of combinations of chlorosis, rosetting, dieback, and depressed vegetative growth.