What fertilizer is good for Dendrobium officinale?

Dendrobium candidum is a precious variety of Dendrobium, which is very popular with consumers in the market of our country. In terms of price, it is also higher than other Dendrobium. So some people want to grow it artificially. But if you want it to grow well, fertilizing is the key.

What fertilizer is good for Dendrobium candidum?

The cultivation land of Dendrobium candidum should choose a half-overcast and half-yang environment, and attention should be paid to topdressing during the growing season, and mature peanut drum, rapeseed cake, calcium superphosphate and other mixtures can be sprinkled on the roots, in addition, 0.05mur0.1% potassium dihydrogen phosphate can be used for extra-root topdressing, at the same time, new high-fat film is sprayed to improve the utilization rate of nutrient effective components, and Zhuangcauling is sprayed at the right time during the growing period to make the plant stem stout and plant luxuriant.

Forbidden fertilizer of Dendrobium candidum

Fertilization of Dendrobium candidum is prohibited to use chemical or biological fertilizers that have not been registered by the national or provincial agricultural departments, and to prohibit the use of unmature organic fertilizers. The use of municipal garbage, industrial garbage, hospital garbage and feces is strictly prohibited. Dendrobium candidum has very strict requirements on matrix and fertilizer, and the matrix must be disinfected before planting, and the strict requirement of fertilizer is one of the important conditions to ensure the yield, quality and income of Dendrobium candidum. The application of organic fertilizer ensures that Dendrobium candidum has no pesticide residue and no heavy metal residue, which lays a good foundation for putting safe Dendrobium into the market.

Fertilization skills of Dendrobium candidum

The main results are as follows: 1. the nutrition of aerial root of Dendrobium candidum mainly depends on the blue bacteria of the root system to fix the free nitrogen in the air, but the application of proper fertilizer can promote the enlargement of the stem and the fatness of the leaves. After the germination of the new root, you can begin to spray liquid fertilizer, such as potassium dihydrogen phosphate, or potassium dihydrogen phosphate plus urea, etc., with a concentration of about 0.1%, usually sprayed once in 10 days. After 1 year and 2 months, when the transplanted seedlings have gradually adapted to the new environment and the new roots have grown lO cm or so, slow-acting granular fertilizer can be applied to help them thrive.

2. After 15 days of tissue culture seedling transplantation, it was best to apply 1gram 2-fold nutrient solution. Bai Meifa and others studied the effect of applying nutrient solution of Dendrobium candidum (mainly composed of potassium nitrate, ammonium sulfate, magnesium sulfate, ferric sulfate and potassium dihydrogen phosphate) on the yield of Dendrobium candidum. The results show that watering appropriate concentration of nutrient solution can greatly increase the yield of Dendrobium candidum. Foliar fertilizer is commonly used in Dendrobium candidum. Spraying foliar fertilizer (N:P205:K20=25:13:13, the total content of N, P, K is 51%, and the total content of trace elements B, Fe, Zn, Cu, Mn, Mo is 1%) can promote the elongation and growth of stems and leaves of Dendrobium candidum, the stem node and diameter are longer and thicker, and the average fresh weight per plant is significantly higher than that of the control.

Matters needing attention in fertilization of Dendrobium candidum

1. Grasp the concentration of fertilizer carefully.

2. it is necessary to grasp the time of fertilization, and to avoid the time of high temperature and sufficient light, it is generally better to apply fertilizer before 10:00 in the morning, but the time of fertilization should be adjusted according to the changes of season, weather and climate.

3. Under normal circumstances, fertilizers should be applied every semimonthly and should be fully covered and evenly put in place.

4. Dendrobium candidum is generally fertilized two seasons a year, one season is from March to April, which can promote the rooting and sprouting of Dendrobium. In the second season, winter fertilizer is applied once in November. Fertilizer can be used fermented sheep dung or rapeseed cake (Dendrobium special fertilizer is also OK) foliar fertilizer sprayed 1-2 times a month, proportionally mixed, do not use too much fertilizer to prevent fertilizer damage.

5. Foliar fertilizer is generally used in the later stage of fertilization management, twice a month. The amount of foliar fertilizer is very small, and one gram can generally be mixed with 3 jin of water. Spraying foliar fertilizer could promote the elongation and growth of stem and leaf, lengthen and thicken the stem node and diameter, and the average fresh weight per plant was significantly higher than that of the control.

Dendrobium candidum should be fertilized in strict accordance with the requirements of Chinese medicine, do not casually use some industrial waste. The fertile land should be done well in advance, and it is also important to add fertilizer and foliar fertilization in the later stage. You also need to pay attention to the temperature and time of the day when fertilizing. Only by doing these well can we ensure the growth of Dendrobium candidum.