The main agrotechnical measures in potato growing technology is optimal fertilisation. Potatoes consume about 5 kg of nitrogen, 2 kg of phosphorus and 8 kg of potassium per tonne of yield. The effectiveness of mineral fertilisers for potatoes depends on the phosphorus and potassium and the mineral nitrogen content of the soil. The correct choice of fertiliser not only determines the size of the potato crop but also the quality of the tubers. Increasing the nitrogen rate promotes tuber growth but usually results in a lower quality of the tubers by increasing the nitrate content. Proper choice of pre-seed and crop rotation can help to prevent the spread of soil-borne diseases, overwintering pests and some weeds, while also reducing the need for plant protection products. Potatoes should be planted in the same field after 3-4 years. In cultivated, well-fertilised soils, the potato yield is not significantly affected by the pre-crops. Winter cereals, oilseed rape, bean crops, root crops, maize and fallow land are good pre-crops for potato. Perennial grasses are not a good starter crop as they often have a high incidence of potato leafhoppers which can affect potato yields.