Like wheat, rapeseed is sown in autumn, and harvested the following summer. The most important thing at the beginning of vegetative stage is good rooting, essential as a deposit of boron, a micronutrient that makes cells more elastic so that they can endure frosts better, and which also plays an important role in pollination. The first treatment should be done in early spring, using both FitoFert Humisuper Plus and FitoFert Bor Max 20.