How to water cherry blossoms during flowering?

Big cherry is a tree species with early fruit maturity among deciduous fruit trees in northern China, which is sensitive to water demand and neither resistant to drought nor waterlogging. Irrigation of big cherry should be carried out according to the needs of its growth and development and weather conditions. Therefore, special attention should be paid to the irrigation time of big cherry:

1. watering before flowering: watering before germination and flowering can meet the water demand of big cherry for leaf spreading and flowering, and spraying new high-fat film and Zhuangguodiling can keep moisture and heat, and promote flower bud development; At the same time, during this period, the temperature is low and the irrigation amount is small, so as not to affect the growth of roots (the water in reservoirs and ponds can be used for irrigation). Second, hard core water: after flowering to before fruit ripening is the most sensitive period for big cherry to water. During this period, it is necessary to irrigate frequently, and the amount of irrigation should be large, generally 2-3 times. At the same time, it is necessary to spray Zhuangguodiling to prevent cherries from falling; During irrigation, square or rectangular flower beds should be built between plants in cherry orchard. The soil surface near the trunk should be slightly higher, and the surrounding soil surface should be flat to prevent drought at high places and water accumulation at low places. 3. Watering before harvest: 10~ 15 The days before fruit picking are the period when the big cherry fruit expands rapidly, so water it several times more. Prevent fruit from poor development, low yield and poor quality caused by water shortage; Prevent sudden flooding, causing fruit cracking and so on. It is also necessary to cooperate with the spraying of Zhuangguodiling, coordinate the nutritional balance, prevent fruit cracking, and spray a new high-fat film to improve the surface gloss of cherries and improve the commodity value. 4. Post-harvest water: After the cherry is harvested, it is an important period for the big cherry tree to recover and flower bud differentiation. At this time, irrigation combined with fertilization should be used to restore tree vigor, and "Cuihuawang No.3" should be sprayed to inhibit the main shoot and crazy growth of big cherry, promote flower bud differentiation and ensure flower bud differentiation.