Second, scientific fertilization adopts the "trinity" fertilization method. That is, plant ash is combined with human excrement and urine, chemical fertilizer is combined with soil miscellaneous fertilizer, and root application is combined with foliar fertilizer to meet all kinds of nutrients needed in the development stage of hawthorn. In the stage of flower bud differentiation, Cuihuawang 2 was used to promote flower bud differentiation, adjust nutrient conversion rate and completely balance the years.
Third, fruit thinning should promptly remove over-dense fruit, deformed fruit, weak fruit and pests and diseases, so as to make hawthorn develop in a balanced way. It is necessary to change the traditional management mode of "winning by more" and establish the concept of "who else" to ensure high yield and high quality of fruits. Spray Zhuangguodiling once before flowering, at the young fruit stage and at the fruit expansion stage of hawthorn to thicken the fruit pedicel and improve the nutrient transport. Prevent falling flowers, fruits, cracked fruits, stiff fruits and deformed fruits.
Fourth, pest control "clean up" the orchard, thoroughly remove parasites such as dead branches, fallen leaves, rotten fruits and weeds under the tree, and bury or burn them. For fruit rust and pests, trichlorfon and carbendazim can be sprayed together with the new high-fat film, and the control effect is good.