Weeding, soil loosening and thinning should be carried out in time when the seedlings of Forsythia suspensa propagated by seeds grow to 20 cm.When thinning seedlings, it is required to keep two plants in each hole and water them in time.When the seedlings grow to 30-40 cm, human urine manure is applied once.During the growth period, fertilizer should be applied once or twice in combination with loosening soil, preferably farm manure and phosphorus and potassium fertilizer, so as to promote early maturity and more fruit.
During the management period, the adult trees should be pruned in time, and some spindly branches and old branches should be cut off so as to facilitate the germination of new branches.Every autumn, after the leaves fall, the overgrown and withered branches should be cut off, and the branches that have been fruiting for many years should be cut short.Usually, it is found that the branches with excessive growth are cut off directly from the base to save nutrient consumption.
For wild forsythia, attention should also be paid to management, and reclamation treatment should be carried out frequently, so that the effect of increasing production will be more obvious.If there are continuous adult trees, slope cleaning treatment should be carried out at the end of spring and the beginning of autumn every year, and soil loosening and fertilization should be carried out during the growth period to ensure better growth, promote more fruits and improve yield.In addition, pruning should be carried out after defoliation at the end of autumn every year.
