How to maintain the orchid, how to fertilize the orchid

Cymbidium is a kind of fertilizer-loving flowers, which is very important for the growth of orchid. It is best to choose organic fertilizer. Every autumn and the following spring, it is time for the magnolia to pour the pot and change the soil. In this season, the gentleman orchid is the weak period of summer or winter to the peak period of autumn or spring. Before changing the soil, prepare the soil, and then stir a certain amount of base fertilizer (such as sesame seeds, castor seeds, bone meal, etc.) as the base fertilizer. If the root system is not good, you don't need to add base fertilizer to avoid damaging the flowers.

Generally, it is good to apply liquid fertilizer in spring, autumn and winter, but it is easy to burn roots with appropriate amount and excessive concentration. Bean cake fertilizer and water is generally 1:30. Under the premise that the bottom fertilizer is thin, liquid fertilizer can be often used with water, that is, as long as watering, light liquid fertilizer can be brought into the water. In principle, it is not suitable to apply any fertilizer after ambush. The reason is very simple, due to the high temperature in summer, topdressing will make the leaves of Cymbidium grow too long, and the summer temperature is high, the ventilation is not good, topdressing fertilizer will cause root rot.

Fertilizer and water complement each other and are indispensable. The fertilizer is applied properly, but the water can't keep up with it, and it doesn't have the effect it should have. At the same time, lighting conditions, temperature, humidity and ventilation should also be closely coordinated in order to achieve good results.

Although Magnolia likes to be fertilized, too much or too little fertilization will affect its growth and flowering. Excessive fertilization, the new leaves are easy to turn yellow, seriously causing fleshy root rot; when lack of fertilizer, the leaves are narrow, light, dull, flowers are small, the color is not bright. The gentleman orchid with reasonable fertilization has tall and straight green leaves, good glossiness, broad and thick leaves and large and colorful flowers.

The method of applying thin fertilizer frequently should be used to fertilize the magnolia, and do not apply thick fertilizer and raw fertilizer. Spring is the peak growing season of Cymbidium, which has high requirements for nutrients. In addition to applying base fertilizer when changing pots, thin nitrogen fertilizer is generally applied every 10 days or so during the growth period to promote the growth of branches and leaves. Summer weather is hot, generally do not apply fertilizer, so as not to rot the roots. Thin fertilizer based on phosphate fertilizer is applied every 7 to 10 days in autumn to facilitate the drawing of arrows and bright flowers. The fertilizer can be fully fermented thin cake fertilizer and water, etc., can also be fried castor seeds, sesame seeds and other oilseeds crushed and buried in the basin soil.

Cymbidium likes to be fertilized, but it should not be fertilized too much, otherwise it will affect its growth and flowering. The principle of "applying thin fertilizer frequently" should be adopted in the fertilization of gentleman orchid, and the following links should be mastered:

1. Spring is the vigorous growth period of Cymbidium, which requires more nutrients, in addition to applying base fertilizer in combination with changing pots (that is, base fertilizer, which is detailed in Article 9). Thin fertilizer based on nitrogen fertilizer (liquid fertilizer of oil-bearing crops such as bean cake, castor seed, soybean, sesame seed, etc.) should be applied every 10 days or so to promote the growth of branches and leaves.

2, the summer climate is hot, when the temperature is above 25 degrees, it is not suitable to apply fertilizer to avoid rotting roots. If the temperature can be reduced to below 25 degrees, extremely thin liquid fertilizer can be applied every 15 days to promote its growth and shorten the dormancy period.

3. In autumn, because of the cool climate, liquid fertilizer based on phosphate fertilizer (bone meal, fish scales, rice bran, livestock manure, etc.) can be applied every 7-10 days, and fully mature thin pancakes, fertilizer and water or other cake fertilizer can be buried in the soil to facilitate its arrows and promote its flowers to be big and colorful.

4. Only by applying fertilizer reasonably, the orchid will have tall and straight green leaves, good gloss, broad and thick leaves and bright flowers. When fertilizing too much, the new leaves are easy to turn yellow, and in serious cases, the flesh roots rot; when there is a lack of fertilizer, the leaves are narrow and thin, the color is light, the luster is not bright, and the flowers are small and not bright.

5. There are many reasons why the orchid does not bloom, the most important of which is the lack of nutrition, because the flowering plants consume a lot of nutrients, and the nutrition in the pot soil is already quite deficient, such as fertilization can not keep up with or without new culture soil, that is, it is difficult to blossom, even if it blossoms, the flowers will be thin and light, and the ornamental value is not high.

6. Sometimes when the orchid blossoms, there will be the phenomenon of "entrapment of arrows". In order to prevent this phenomenon, the magnolia, which has been cultivated for three years, needs to increase the number of fertilizers and fertilizers with more phosphorus in autumn, and spray 0.3% potassium dihydrogen phosphate solution to the leaves when the arrow is exposed, so as to promote it to come out quickly and blossom earlier.

7, potash fertilizer composition is relatively high (plant ash, wood carbon) can be mixed with a little when changing soil in spring and autumn.

8. Trace elements (slag, river sand, eggshell) can be added when mixing soil.

9. The fertilizer effect of base fertilizer is long. When changing soil in spring and autumn, solid fertilizers such as fried or boiled sesame seeds, perilla seeds, sunflower seeds and castor seeds are added. The method is to first put a layer of soil on a layer of raw materials, cover a layer of soil and then plant flowers on it. Do not burn roots if the raw materials are in direct contact with the roots. Oil crops with shells can not be shelled because they are afraid of burning roots.

As the saying goes, "every flower of a crop depends on fertilizer." Cymbidium is no exception. Cymbidium is a multi-root, multi-leaf plant that needs adequate nutrients in the process of growth and flowering and fruiting. If there is a lack of fertilizer, there will be yellowing and brightness loss of the leaves, and even narrowing the growing leaves and changing the leaves. When flowering, if the fertilizer is not enough, the number of flowers is small and the petals are small. Therefore, timely application of various fertilizers is an indispensable and important condition for raising magnolia.

Commonly used fertilizers are:

1. Solid fertilizer

The seeds, oil meal, horseshoe palm, and bone meal of all kinds of oil craftsmen are solid fertilizers. Such as sesame seeds, perilla seeds, castor seeds, peanuts, sunflower seeds, pine seeds, soybeans, sesame and so on.

2. Liquid fertilizer

Including all kinds of fermented cakes, blood and fresh fish fermented water are liquid fertilizers. For example, soybeans, bean cakes, sesame dregs, horseshoes and fish fermented with water are all good liquid fertilizers.

At present, there are many raw materials for retting fertilizer, and there are also many methods. Two kinds of retting fertilizer are briefly introduced here, one is mixed retting fertilizer, the raw materials containing nitrogen, phosphorus and potassium are put together for retting. One is classified retting, in which the raw materials containing nitrogen, phosphorus and potassium are retted separately and temporarily prepared according to the nutritional needs of the plant age.