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How to manage forsythia suspensa in the field?
1. Weeding in intertillage is beneficial to root growth by loosening the soil and weeding, removing weeds around the plants in time, and keeping the soil loose.

2. Topdressing combined with weeding, applying 1 ~ 2 times a year, mainly using farmyard manure such as compost and manure, conditionally mixing with quick-acting fertilizers such as calcium superphosphate, ditching beside plants, and covering the soil after fertilization. Farmhouse manure, phosphorus and potassium fertilizer can be applied in the fruit-bearing period to promote early fruit setting.

3. When irrigation and drainage encounter dry weather, pay attention to timely irrigation to keep the soil moist; Water should be removed in time in rainy season.

4. Trimming and shaping. When the main stem of forsythia suspensa grows to 70-80 cm high, the top is cut off to promote the germination of lateral branches, and strong lateral branches are selected to cultivate into main branches; After one year, select 3-4 stout new branches from the main branches to cultivate secondary branches, and cut off branchlets, weak branches, clustered branches and diseases and pests. Through shaping and pruning, a tree shape with low stem and short crown, hollow inside and round outside, ventilation and light transmission is formed. In late autumn and early winter, dead branches, old branches, twigs and old branches of adult trees should be cut off to promote the growth of new branches and increase yield in the next year.