2. Watering: Water the bergamot lotus soil when it is dry, so as to keep the soil moist, but it is necessary to prevent the waterlogging in the basin from affecting the root growth. Watering is the key to the success of fingered citron planting. After April to May, the temperature rises, fingered citron grows rapidly and the water demand increases. It is hot and hot in summer. In addition to keeping the soil in the basin moist, water should be sprayed around to keep a certain environmental humidity. In autumn, the temperature gradually drops, and the amount of watering can be gradually reduced; In winter, when the tree goes into dormancy, it should be moved into a greenhouse, and the basin should be kept moist to prevent it from being too wet and too dry, so as to avoid root rot or plant wilting. The water of bergamot should be treated flexibly according to the specific situation of seedlings, with less water for small trees and weak trees and more water for big trees and strong trees; The fruit should not be watered during the swelling period to avoid falling fruit.
3. Fertilization: Combined with watering and topdressing, fertilization of potted bergamot can be divided into four different stages in a year: first, thin fertilizer should be applied every seven days from vernal equinox to awn seed, and potassium dihydrogen phosphate can also be used as topdressing outside the roots, with the aim of enhancing tree vigor. Second, it is the peak and fruiting period between the awn seed and the summer heat, and fertilization should be done every 3 to 5 days, and the fertilizer content can be thicker than before. At this time, more phosphorus and potassium fertilizers are applied, aiming at more flowers and less fruit drop, and artificial pollination can be carried out. Third, between the summer heat and the autumnal equinox, the bergamot fruit is in the expansion period, and more compound fertilizers such as potassium and phosphorus are used, and less nitrogen fertilizer is used, otherwise the fruit will delay maturity. Fourth, during the period from Bailu to first frost, thin phosphorus and potassium fertilizer were applied after fruit picking, and watering and nitrogen fertilizer were controlled, so as to restore tree vigor and promote flower bud differentiation. In short, fertilizer and water should be controlled in the early stage of fruit bearing, and fertilizer and water should be added in the fruit expansion stage.