What fertilizer is good for rubber trees?

What fertilizer is good for rubber trees?

Before planting rubber trees, add some cake fertilizer to the substrate to supplement nutrients. During its vigorous growth period, apply urea and potassium dihydrogen phosphate, or use balanced fertilizer with some calcium nitrate instead. Some potassium dihydrogen phosphate can be applied before winter.

Basal fertilizer : The basal fertilizer of the rubber tree is mixed into the substrate during planting, which is beneficial to the subsequent growth of the plant. You can use fermented cake fertilizer or slow-release compound fertilizer.

Top dressing : For rubber trees, potassium dihydrogen phosphate can be used as top dressing. 0.2% urea and 0.1% potassium dihydrogen phosphate can be mixed, or balanced fertilizer plus calcium nitrate can be used, about two or three times a month.

How to fertilize rubber trees

When fertilizing the rubber tree, you can poke a few small holes on the edge of the pot away from the root system, put the fertilizer in evenly and cover it with soil. It will decompose on its own as you water it and provide nutrients for the Kalanchoe.

Fertilization in spring : Generally in March, the rubber tree needs to be repotted. When repotting, apply enough base fertilizer, such as rotted chicken manure or sheep manure, and spread a layer of them at the bottom of the pot. This can add a lot of nutrients to the plant.

Summer fertilization : When fertilizing rubber trees in the summer, it is best to use farmyard manure, decomposed animal manure, chicken manure, and sheep manure. The recommended time for fertilization is May-June.

Autumn fertilization : In autumn, you can apply ordinary slow-release fertilizer to rubber trees, which is as effective as organic fertilizer. Generally, the best time to apply slow-release fertilizer to rubber trees is recommended to be in early September, and the earlier the fertilization, the better.

Fertilization in winter : If you do not want to change the pot or soil of the rubber tree in winter, and do not want to give chemical fertilizers, you can use decomposed cake fertilizer water, chicken manure water, or sheep manure water. When the potting soil is dry, water it once along the edge of the pot. The recommended time is November.

Key points to note when fertilizing rubber trees

1. Once the rubber tree is over-fertilized, its roots can easily be burned and cause fertilizer damage. Therefore, when fertilizing, avoid using liquid fertilizers or raw fertilizers with too high concentrations. After fertilizer damage occurs, the plant should be removed from the pot in time, the injured roots should be trimmed off, and the plant can be re-potted.

2. After fertilizing the rubber tree, be sure to water it in time to dilute the fertilizer, so as to prevent the leaves of the plant from turning yellow. You can also loosen the soil before fertilizing.

3. Rubber tree is a sun-loving tree species, but it is afraid of direct sunlight, especially after fertilizing. It should avoid exposure to the sun after a long period of rain and the strong sunlight at noon in summer, otherwise the young petioles and thick leaves will be easily burned.