The spring planting of Syringa fulva can loosen the soil after watering for three times. After that, it can be watered once a month. In the period of heavy rainfall, it is not necessary to water or less. Pour frozen water in early December. Frozen water is very important, not only plays a role in antifreeze, but also provides rich water for Syringa fulva, which is conducive to the growth and germination of trees in the next spring. In March of the second year, the unfrozen water shall be poured in time, which can provide the water needed for tree germination in time. Since then, it can still be watered once a month. In the first three years, this is the case. In the fourth year, except for the period of special drought, only the sealed water and unfrozen water shall be poured in every year. When it's especially dry, you can water it in time.
When planting in spring, the sole fertilizer should be applied. At the end of autumn, farmyard manure is used in combination with frozen water. The way of fertilization is shallow, or it can be directly sprinkled on the tree tray. In the spring of the second year, nitrogen fertilizer was applied, and P-K compound fertilizer was added in July. Apply farmyard manure at the end of autumn. The first three years such fertilization, the fourth year, every spring to apply a nitrogen fertilizer, the end of autumn to apply a farmyard fertilizer.
