Pruning method of black king kong plant In order to make the plant grow evenly and ensure a good plant shape, coring is carried out when the seedlings grow to 50-80 cm height to promote the germination of lateral branches; After the lateral branches grow out, select 3-5 branches, and then cut them short once a year, and after 2-3 years, you can get a complete, round and full plant.
Rubber trees are often used for cutting and high-pressure propagation. Cutting propagation is simple, easy to survive and fast to grow. Generally, pruning is combined in late spring and early summer. Select annual lignified middle branches as cuttings, cut off the lower leaves, close the upper two leaves and bind them with plastic, or cut off the upper leaves for half a week to reduce water evaporation; In order to prevent the incision from losing too much milk and affecting the survival, plant ash should be used to smear the wound in time; Cutting the treated cuttings into seedbeds based on river sand or vermiculite; Keep the bed high humidity after insertion, and often sprinkle water on the ground (but don't sprinkle water) to improve the air humidity. Under the temperature of 18-25℃ and semi-shading, rooting takes about 2-3 weeks. It is also convenient to use high pressure at home and the success rate is high. Selecting biennial branches under high pressure, firstly girdling branches with the width of 1- 1.5 cm; Then wrap wet moss or peat soil around the wound, and finally wrap it tightly with plastic film, and wrap it at the upper and lower ends; 1-2 months later, the rooting branches can be cut off and put into a pot.
The production standard of planting technology for black king kong plants is: 18cm pot, 70cm high, 60-70cm crown width, and the maintenance period is 1 year.
Substrate preparation: loose substrate with good drainage and air permeability can be mixed with pond mud: domestic peat: 1:2, and the substrate is crushed and mixed with water. (The standard of adding water is: after mixing with water, hold a handful of peat in your hand, and water seeps through your fingers. ) wait for a cup of planting. The amount of peat in 18cm basin is about 1000ml.
Requirements for potted seedlings: Select high-quality seedlings produced professionally, with a height of 5-7㎝ (natural height) and 5-6 leaves, free from pests, dead leaves and yellow leaves.
Pot loading: The reused old pot must be soaked in 1000 times potassium permanganate solution for more than half an hour, then washed with clear water and dried for later use. First, plant in a flowerpot with a diameter of 12cm, 1 plant/pot. After planting in a pot of 18cm for about 5 months, planting in a pot of 3 plants/pot for about 6 months can reach the factory standard.
Key points of conservation of black diamond plants like water, but they are not resistant to water damage. When waterlogging occurs, the root system is deprived of oxygen, and yellow leaves and fallen leaves will appear. Watering should follow? See dry and wet? Don't water it often. Winter should be indoors for the winter! Generally, water is poured once a week, and summer depends on the weather and the humidity of the basin soil!
Daily maintenance and water and fertilizer management of black king kong plants: black king kong likes water, but it is not resistant to water damage. When there is waterlogging, the root system is deprived of oxygen, and yellow leaves and fallen leaves will appear. Watering should follow? See dry and wet? Don't water it often. Fertilizer water can be irrigated with Norwegian compound fertilizer water-soluble fertilizer 15- 15- 15 once a week.
Temperature management: The suitable temperature for the growth of King Kong is between 20-30℃, and the most vigorous growth is at 25-30℃. When the temperature is lower than 10℃, the long-term potential is poor, and when it is lower than 0℃, it is vulnerable to freezing damage. If cold air blows indoors, yellow leaves and fallen leaves will appear.
Humidity management: In the hot season, water should be sprayed to the blades or the surrounding environment frequently to cool down and increase the air humidity.