How to water boxwood
Boxwood likes water. Watering boxwood should follow the principle of "better wet than dry". When boxwood was still a seedling, the root system was shallow. When watering a small amount for many times, it was enough to keep the surface soil moist. The rapid growth of seedlings requires a lot of water, so the amount of irrigation should be increased and watered thoroughly each time p>
At the later stage of seedling growth, in order to avoid excessive growth of seedlings, watering should be controlled. Each watering should be carried out in the morning or evening and not at noon p>
Huang Yang likes dampness and can adapt to the rainy weather for a month, but can't accumulate water for a long time. When transplanting in summer or sprouting new buds, pay attention to avoid long-term sun exposure and prevent the basin soil from being too wet p>
How to fertilize boxwood
Populus tomentosa seedlings need a lot of phosphorus and more nitrogen during rapid growth. When they stop growing in autumn, they need more potassium. After planting, the leaves can be sprayed with 0.5% in the morning or evening 4% potassium dihydrogen phosphate should be avoided at noon with strong sunshine. It can be carried out three to four times a month p>
The newly transplanted boxwood should be fertilized in the early stage in time, but the concentration should not be too large to avoid burning the new roots p>
In the stage of rapid growth of seedlings, increase the amount and frequency of fertilization at least once a month. In addition, nitrogen fertilizer should be applied in spring and summer, and the last time should not be later than "beginning of autumn". Avoid excessive growth of seedlings and weakening of overwintering ability. From August to September, phosphorus and potassium fertilizer are mainly used to promote the Lignification and rooting of boxwood and enhance the ability to resist the cold p>