Four Seasons Management of Meizhou Orchid

Spring: the air temperature in the south is relatively high, and it is overcast and rainy for a long time, so Jialan is very prone to diseases and insect pests. Therefore, in the management, emphasis should be placed on disinfestation and sterilization, cold and rain protection, plant change and so on. After the Spring Festival, pedicels should be cut off as far as possible so as not to consume nutrients and affect the germination of new buds in spring. Every 7 days, spraying insecticide drugs (such as thiophanate, carbendazim, chlorothalonil, trichlorfon, Dongguo, etc.) for three consecutive times, all kinds of drugs are used separately in turn to avoid the drug resistance of the bacteria. Ramet propagation is best carried out during the period from sting to the Spring Equinox.

At the beginning of spring, it is still cold, rainy and humid, and all kinds of orchid plants do not carry out photosynthesis, and their growth is not exuberant, so they are in a semi-dormant state, which can not be absorbed even with the application of fertilizer, which causes a serious burden on the roots of orchid plants. If you want to apply fertilizer, you can spray 0.2-0.3% potassium dihydrogen phosphate or Huabao 1 or activin B1 on a sunny afternoon after the Spring Equinox. In order to promote the growth of leaf buds at the end of spring, a small amount of solid fertilizer of mature peanut bran can be applied along the edge of the basin.

As the temperature rises gradually and the air humidity increases in summer, it is the peak period for the growth of all kinds of orchids. Early summer enters the plum rain season, should pay special attention to sterilization and disease prevention (soft rot, black spots, anthrax), to grasp each link, careful management, so that orchids safely spend the summer.

Shading: orchids are semi-shady plants. The Beginning of Summer's sunshine is increasing day by day, and the temperature rises sharply during the day. You should pay attention to proper shading and accept weak light sooner or later. In the hot summer season at the end of summer, it is necessary to strengthen shading, heat prevention and cooling, the ground and platform, morning, noon and evening should be often sprinkled to keep moist.

Disinfestation and sterilization: this quarter is the plum rain season, Rain Water is very much, the orchid culture place and potted orchid are too wet, and it is easy to encourage the derivation of diseases and insect pests, so we must pay attention to prevention and control, so we should spray pesticides around the culture place and potted orchids every other week. You can use antiseptic alum, chlorothalonil, tobujin, Dongguo, trichlorfon, etc., and apply them in turn (in proportion to the instructions) once a week.

Fertilization: this season is the peak growth period of orchids, you can add more fertilizer, adding potassium dihydrogen phosphate or activating element B1 and B2, or Huabao No.2, etc., in the process of spraying pesticides. The general principle is mainly to apply fertilizer frequently and lightly, and pay special attention to stop fertilizing all kinds of orchids during the period of double extreme heat.

Autumn: early autumn, the heat is still soaring, there is the so-called "heat in the three volts". The management of orchids in autumn should focus on preventing heat and cooling, killing pests, adjusting light, changing pots and ramets, supplying fertilizer and preventing typhoons.

Orchids like to be wet, afraid of stagnant water, daily water supply is indispensable, plant materials in the basin to keep 80% moist is the most ideal, that is, to achieve "autumn does not dry". The need for air humidity around the orchid place is more important than the plant humidity in the orchid basin, so it is often drenched around the orchid shed in the morning, noon and evening to increase air humidity. Orchid basin water supply and pest control and sterilization. It should be changed to be carried out after the residual heat decreases at night.

Disinfestation: every seven days in early autumn and every fifteen days at the end of autumn, pesticides are sprayed around orchid cultivation sites and potted orchids to sterilize and disinfect orchids. Pesticides such as topzine, chlorothalonil, carbendazim and other pesticides can be used. Insecticides can be used in Dongguo, trichlorfon and other pesticides. When in use, it is sprayed according to the proportion of the pesticide instruction.

Change the basin: if Qiulan, Chunlan and Xia Hui need to propagate separately, it is suitable to be carried out in the season from White Dew to Cold Dew, so the weather is cooler. Dividing pots is beneficial to the growth of orchids.

Windbreak and fertilization: strong typhoons often occur every autumn, with continuous torrential rain after the wind. This is the time of natural disasters and disasters, which often make orchid farmers suffer losses. At this time, we should make preparations, strengthen the orchid shed, move the high-grade pot orchid to the indoor temporarily as soon as possible, and then put it in the orchid shed for normal management after the rainstorm. Orchids long-term planted in the total lack of nutrients, especially the use of stone, sintered materials, bark and other inorganic materials as plants, should be timely fertilizer to supplement nutrients. Orchids are mesophytic or slow-growing higher flowers, should be equipped with intermediate and delayed fertilizers, such as bone meal, peanut powder, light fish meal, etc., fully fermented, diluted with water, used in the growing period, once every 15 days, one hour after application, sprinkle with water to avoid hurting the orchid root. The foliage can also be sprayed with chemical fertilizer once every 15 days in the evening.

In winter, the temperature generally drops, especially on the frost and snow day at the end of winter, all kinds of flowers stop growing and are in a dormant state. It is necessary to do a good job in the management of the following links so that they can survive the winter safely.

Prevent cold and increase light for heating: in early winter, the climate in all parts of the south is still warm, and all kinds of autumn orchids and orchids are nearing the end of their growth, so there is no need to consider cold prevention measures. although the light has weakened in early winter, the sun is still very strong at noon, so it is appropriate to open the shading net at night to allow orchid plants to enjoy natural dew. The Winter Solstice to Greater Cold season, all kinds of orchids do not need to shade during the day, can let orchid pots shine more weak light, increase light for heating, in order to facilitate the growth of flower buds and increase the head of Reed. If the cold current goes south, it is best to cover the orchid shed with Niyou film in the evening to prevent the severe frost from attacking and damaging the orchid plant.

Water supply and sterilization: all kinds of orchids in winter, most people go to dormancy, the water supply should not be too wet, and only 30% of the plants in the basin are moist, which is enough for their lives. If the basin soil is too wet, it will cause rotten roots and leaves, so we should pay attention to it. If you need to sprinkle water, it should be carried out when the temperature picks up at noon on a sunny day, and when the temperature is relatively low in the evening. The early winter in the south is warm, and in semi-natural culture places, plant diseases and insect pests also occur. In addition to continuous cleaning and hygiene, diseases and pests are also killed twice a month. The drugs used, as mentioned earlier, are used at noon on sunny days. All kinds of orchids should not be fertilized during the dormant period.

Meizhou Orchid Friends Association

January 2003