How to manage Young Hickory trees

1, timely and appropriate amount of topdressing: topdressing 3-4 times a year. In the first half of the year, topdressing was applied once in late March, mid-May and early July, each time with 0.5 kg compound fertilizer, and the ring ditch was applied to the periphery of the crown. The base fertilizer was applied once from November to December in the second half of the year, with 10 kg of rotten chicken manure or 2 kg of vegetable cake and 30 cm under the soil. The application of topdressing is beneficial to the growth of the tree, enlarge the crown and form a high-yielding tree early. 2. Prevention and control of diseases and pests on time: Carya cathayensis is resistant to diseases and insect pests, but once diseases and insect pests occur in young pecans, pesticides should be sprayed on time. The pest can be controlled by 2500 times of thiophanate, and the disease can be controlled by 1000 times methyl topiramate. 3. Prevent grass famine and do not use glyphosate to control weeds: there are many weeds in young hickory orchards, and weeds are cut at least twice a year. For the first time, the spring grass can be cut manually after plum emergence, that is, in the first ten days of July, and the autumn grass can be cut once before the autumn grass grows in mid-late September. Do not use glyphosate to weed in young hickory orchards, which will damage the trees and affect the growth of pecans. 4. New grafted varieties: Carya cathayensis is planted in our city, and it will enter the fruit after eight or nine years old, and it will be put into production later. Therefore, the big fruit and thin shell species of Carya cathayensis can be grafted to early fruit and improve fruit quality. 5. Scientific shaping and pruning: as a fruit tree cultivation, the trunk shape or evacuation stratification can be carried out according to the growth habits of hickory trees, and the tree height can be controlled at 5-6 meters. The pruning period of Carya cathayensis can be carried out from defoliation in winter to germination in spring. Cut off thin and weak branches, over-dense branches, disease and insect branches, etc.