Most commonly cultivated root vegetables in Poland include carrot, parsley, chard, celery, and parsnip.
Nutritional requirements for carrot:
Nitrogen: 80-120 kg N/ha, phosphorus: 56 kg P 2 O 5/ha, potassium: 360 kg K 2 O/ha. Other minerals are also vitally important – root vegetables require 50 kg/ha of magnesium, 50kg/ha of calcium, and 60 kg/ha of sulphur in the form of SO3.
Nematodes also pose a threat to root vegetables cultivation as they decrease the yield quality and quantity. An intensive decomposition of post-harvest remains and organic matter present in soil reduces the number of nematodes by creating unfavourable living conditions for pests. Bacterial preparations which facilitate decomposition of remains (bi protect, bi azot) and humus acids (lingohumat super) are applied in order to reduce the number of nematodes.