Potatoes are characterised by a large surface of leaves which promotes foliar feeding. In this way, it is possible to provide deficient nutrients to plants in a quick and efficient manner.
If good foliar fertilizers are used, as many as 90% of the nutrients contained in these preparations are used. Therefore, foliar fertilization with the Basfoliar®,2.0 Solubor®DF and ADOB® and ADOB® 2.0 fertilizers is a comprehensive potato fertilization programme which contains a balanced set of macro- and micronutrients.
Boron: It plays a very important role in potato growing by determining the high yield and improving crop quality. The deficiency of this element is caused by the soil condition, high pH values and droughts. Deficiency symptoms are quite easy to observe. These include slowed-down growth, stunting, deformation of the youngest leaves, poor development of the root system and the cracking of potato tubers, which increases the risk of infection.
Magnesium: It facilitates the tuber formation process. Thus, before and after flowering, an additional dose of magnesium should be delivered, preferably in the form of magnesium sulphate heptahydrate. There is a strong relationship between the assimilation processes and the magnesium content. Magnesium deficiency reduces the starch content and leads to the formation of stunted tubers. At an early stage, this deficiency is manifested by pale green leaves which turn yellow, fold and become brittle as a result.
Manganese: It plays the key role in metabolic processes occurring in potatoes. The deficiency of this element significantly reduces the content of vitamin C, disturbs the starch formation process and causes general deterioration of plant health. With an insufficient manganese content, the youngest leaves turn pale and get yellow spots as a result of chlorosis and local necrosis. Leaves become flat and wilted although their edges and vascular bundles often look healthy.