How to manage hickory trees in autumn?

How to manage pecan trees in autumn? please describe in detail Hickory tree autumn main management has fertilization and pest control, detailed methods can refer to the following: First, to Hickory tree fertilization purposes: Hickory fruit after growth consumes a lot of nutrients, has been differentiated next year's short branch-like bare teeth need to have enough nutrients to protect, so it is necessary to timely fertilize nutrients. According to the variety of fertilizer applied by forest farmers in producing areas in recent years, most of them are nitrogen, phosphorus and potassium compound fertilizers, lack of calcium, magnesium, zinc, boron and other trace elements needed for the growth of hickory trees, resulting in the change of physical and chemical properties of forest soil, inhibiting the healthy growth of hickory trees, reducing the fruiting branches of hickory trees, excessive growth of branches, some leaves losing green and showing signs of lack of nutrients, and the unscientific fertilizer varieties have affected the yield of hickory trees. Therefore, Special biological fertilizer and organic fertilizer suitable for pecan growth must be selected according to local conditions. 2. Pecan tree fertilization method: 1. Furrow application: dig a deep and wide 10 to 15 cm horizontal ditch at the uphill 1 to 1.5 meters of the tree, and then cover the topsoil after applying fertilizer. 2. Hole application: dig small holes radially around the trunk to a depth of 10 to 15 cm, and cover the fertilizer back to the topsoil. Third, the amount of fertilizer for hickory trees: depending on the size of the tree, the yield is high or low, and the general plant yield of 25 kilograms of hickory trees is about 1.5 kilograms. 4. Hickory tree fertilization time: autumn in late August to late September, spring in late March to early April. 5. Prevention of pecan diseases: In recent years, various pathogenic bacteria in pecan forest have spread rapidly, branch blight, dry rot and root rot are dangerous to the whole production area, which not only seriously affect the yield of pecan but also threaten the life of trees. Therefore, it is hoped that the majority of forest farmers in the production area will seriously prevent autumn diseases. 1. Prevention and control method of pecan branch blight: cut off the dead branches of trees due to disease, clean up the branches falling on the ground and burn them intensively. Then spray 70% thiophanate-methyl 1:700 solution on the branches of the tree, but it must be sprayed 3 times, once every 10 days. 2. Prevention and control of hickory dry rot (trunk flow black water symptom): first scrape off the diseased spot with a knife, brush the diseased spot with allicin (402) antibacterial agent or 1:200 times solution of ketone sulfate, once every 7 days for 3 times. 3. Prevention and control of hickory root rot: Carbendazim or triadimefon 1:200 solution can be used to irrigate the roots. In winter, the roots are irrigated with ketone sulfate 1:200. The solution must penetrate into the root system for 3 times every 10 to 15 days. Click for more pecan growing techniques Click for more fruit growing techniques