Which fertilizer should be used for tulips and when should tulips be fertilized?

1. Fertilization time

The time for fertilizing tulips is mainly in spring and autumn. In summer, when the temperature is high, the plant will enter a dormant state and there is no need to fertilize it. In winter, because the temperature is lower, the plants need to undergo vernalization and it is not appropriate to apply fertilizer. Generally, nutrients should be supplemented during the budding and budding stages to promote plant growth and flowering.

2. Fertilizer selection

The fertilizers chosen for tulips are different at different times. After vernalization, the bulbs have just begun to sprout and grow, and need to be supplemented with an appropriate amount of nitrogen fertilizer to promote the development of stems and leaves. Calcium nitrate is generally used and applied once every week for a total of three times. After the flower buds are formed, you can apply phosphorus and potassium fertilizers, such as potassium dihydrogen phosphate, to promote flowering of the plant.

3. Fertilization method

When planting tulips, you need to apply base fertilizer. The base fertilizer needs to be applied to the bottom of the pot or mixed with the potting soil. Compound fertilizers applied during the growing season usually require digging a hole on the soil surface before burying the fertilizer, usually away from the roots. After the plant blooms, liquid fertilizer is mostly added, and this fertilizer needs to be irrigated into the roots. But if it is foliar fertilizer, it needs to be sprayed on the leaves.

IV. Precautions

Although tulips like fertilizer, do not give them concentrated fertilizer, and pay attention to the amount of nitrogen fertilizer used. If the fertilizer is too concentrated, it will burn the bulbs and cause them to rot. You need to clean the potting soil in time to wash off the fertilizer and soil, then trim them and replant them. Too much nitrogen fertilizer can cause the plant to grow too tall, affecting its appearance.