Management of juvenile stage of Lycium barbarum

After the seedlings planted by fixed stem pruning sprout, the buds below 30 cm above the trunk basal stem (branch band) are cut off. Above the branch belt, 3-5 lateral buds or lateral branches growing in different directions and 3 cm-5 cm apart are selected as the backbone branches (the first layer crown of the crown) to form a small crown, and the top is cut at the height of 40 cm-50 cm. From late May to late July, the sprouting shoots below the main branch band were cut off every 15 days, and the lateral branches left above the branch belt were cut short where the branch length was 20 cm, so as to promote the germination of secondary branches. The strong branches (middle branches) growing upward on the lateral branches (middle branches) were selected from 2 to 3 branches in different directions of the main trunk (each 10 cm apart) as the main branches of the crown, and the top was cut at 30 cm to promote the secondary branches to bear autumn fruit. In the newly built Chinese wolfberry orchard, 100 grams of nitrogen and phosphorus compound fertilizer was applied in early July, 100 grams of urea was applied in the middle of April, 150 grams of nitrogen and phosphorus compound fertilizer was applied in the first ten days of June, and 150 grams and 200 grams of nitrogen and phosphorus fertilizer were applied in the middle of July. The method is to open a ditch at the outer edge of the crown 10 cm-15 cm deep and 30 cm long, apply a quantitative amount of chemical fertilizer into the ditch, mix it with the soil and seal the ditch for irrigation. Autumn application of basic fertilizer is carried out from late September to early October. Symmetrical pits are opened along the outer edge of the crown. The pit length is 30 cm-50 cm (depending on the size of the crown) and the pit depth is 30 cm. Each plant applied cake fertilizer 2 kg-5 kg, sheep dung 5 kg-15 kg (depending on the age of the tree), diammonium 150 grams, mixed with soil, sealed pit, ready to irrigate winter water. Foliar fertilizer for 2-4 years, Chinese wolfberry plants were sprayed with auxin (Ye Mianbao, Fengshu, etc.) in May, June, July and mid-August respectively, 30 kg-50 kg aqueous solution per mu. Timely pest control aphids using 50% monocrotophos 1000-2000 times or 40% omethoate 1000 times solution crown spray; control negative mud insects 20% fenvalerate 2000 times-3000 times solution crown spray; control rust mites using sulfur glue 500x solution crown spray. During the annual growth period of timely irrigation (April-September), the water intake is 50 cubic meters per mu, and 70 cubic meters per mu of winter water (early November). Ploughing and weeding 4 times from May to August, with a depth of 15 cm; turning the garden once in September, with a depth of 25 cm, 15 cm under the crown, without damaging the basal stem of the plant. The overgrown branches from the rhizome, trunk and canopy of the plant in September were pruned in autumn.