Application skills of Lime in Orchid cultivation and Management

Application skills of Lime in Orchid cultivation and Management

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Today, let's talk about the skills of lime in the cultivation and management of orchids, hoping to give Lanyou a double choice in the hot and humid plum rain season.

We know that lime plays an important role in the prevention and control of crop diseases, such as neutralizing lime and sulfur into the well-known stone-sulfur mixture (stone-sulfur mixture is widely used in forest and fruit cultivation. Every agrotechnical station has a ready sale), blending with copper sulfate into the famous Bordeaux liquid (two solid water needs to be decomposed into liquids before systematic blending). There are professional instructions for the production and use of the above two preparations, which will not be introduced here.

However, there is a note that Bordeaux liquid has been applied in orchid cultivation, and the effect is remarkable according to information feedback. Here refers to the use of large-scale cultivation, small areas do not need to be so, because Bordeaux liquid is used with, and the requirements in the preparation process is very strict. Therefore, it is not applicable to orchid enthusiasts who cultivate small areas, so there is no need to discuss it in detail.

In addition, the paste of lime is also of great significance in the protection of trees in winter. Powdered lime is also widely used in large-scale sterilization (in this case, environmental sterilization). For example, it is widely used in the environmental sterilization of H5 avian influenza virus this spring. It is well known that lime is a strongly alkaline medium, which can quickly suppress and kill fungi that like to live in acidic environment, with less side effects and less residue, which is also the main factor widely used in crop prevention. They do not know that lime should not be careless in the process of sterilization. What I am talking about below is the use of lime in orchid cultivation and management.

About the choice of lime, first of all, we should choose high-quality lime. The selection of high quality lime should start from the following two aspects:

1. Visual inspection: through visual inspection, we can see that the large pieces with a white or yellowish appearance without weathering are high-quality lime blocks.

2, feel: this is very important in the selection of high-quality lime blocks, the lighter the lime blocks in the hand, the better (compared with other lime blocks of the same size), those with light weight burn fully and have high purity. On the contrary, the heavy ones do not burn fully in the combustion process, so the content of impurities is higher, which is not desirable.

2. On the production and use of lime clarifier

1. First of all, the high-quality lime block should be soaked or leached into powder with water, and then the pure lime powder should be mixed with 1: 10 times into an aqueous solution (the lime powder that has just been watered off should not be taken in a hurry, for the sake of safety, it should be taken out after natural cooling for the sake of safety). After soaking for about 12 hours, the clarified liquid can be taken out carefully. Note that when taking the clarifier, the surface layer of the clarifier will solidify a layer of crystal like thin ice. This crystal like thin ice is the crystal of high purity alkali substance and is considered undesirable. In addition, the crystal is not easy to dissolve in the back of the water, once it enters the leaf heart of the tender tissue, it will produce drug damage, and it is easy to block the spray hole, so abandon it.

2. The original liquid of lime clarification was mixed into water agent 1: 2000 times. In the hot and humid plum rain season, the combination of land and air was adopted to make the matrix of the whole basin permeated, and then the whole orchid chamber and orchid field were sprayed to fully cover the medicament. In order to suppress or kill bacteria in a large area. In this way, using twice at intervals in the hot and humid plum rain season will effectively control the occurrence of stem rot, soft rot and white silk disease. Attachment: Dalan Farm generally uses powdered lime to sprinkle on the ground, so as to block the pathogens on the surface, but this operation is highly polluting, dusty during operation, and easy to pollute orchid leaves to cause damage to orchid leaves, so it is not advisable.

Note: 1. Lime clarifying liquid water solvent is pure alkaline, so it can not be mixed with any acidic pesticides or chemical fertilizers or organic fertilizers.

Note: 2. Lime clarifying liquid water solvent has high alkali purity. When mixing water, it is necessary to ensure that it is more than 2000 times, and there is no follow-up when mixing water. Please do not reduce the amount of water at will. Note: 3. This agent is only effective for fungi that like to survive in acidic environment, and the purpose is to give priority to prevention. As mentioned above is for reference only, interested Lanyou do not visit to practice again (personal experience is also a wonderful thing). Solemnly declare: this lime leaching liquid is not a panacea, let alone long-term dependent use, please use alternately in cultivation management. In order to reduce the drug resistance of fungi and the possibility of alkaline transformation of culture medium.