Planting Technology Lists
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Post-anthesis Management of Phalaenopsis
The post-anthesis maintenance of Phalaenopsis is very important, which has a direct impact on the safety of summer and flowering in the following year. After years of practice, the author summarizes a set of post-anthesis maintenance methods, which are introduced as follows: 1. After all the flowers of Phalaenopsis have withered, the flowers should be cut off from the base in time to reduce nutrient consumption. Some people keep the flowers and let them blossom for the second time, which is very undesirable. Because the probability of secondary flowering is not high, even if there are flowers, the quality is not good, the flowers are small and few, and the second flowering Phalaenopsis flowering quality the following year.
2019-01-15 -
How to prevent the Jiao Tip of National Orchid Hemp leaves
The orchid leaves are exuberant, green and sturdy, with graceful appearance and divine shape, which is pleasing to the eye. If the orchid leaf tip scorched leaves withered, disease spots, like a piece of psoriasis, even if it is exotic, it will be greatly inferior. To raise orchid leaves well, I have made improvements from the following six aspects. First, the basin soil should be breathable, diuresis and moisturizing. The aggregate has a good structure, soft and loose, shaped like a sponge and medium fertility, preferably mountain rotten leaf soil or peat soil; if you can't get it in the city, you will prepare your own nutritious soil. The formula is: 8 parts of ① edible bacterial dregs and half parts of honeycomb ash.
2019-01-15 -
Ten points for attention in cultivation techniques of rhododendron
First, like yin and fear yang, strong light is easy to burn, but excessive shading will cause poor growth and flower buds are not easy to form. Second, the pH value of acid-loving soil is about 6; when the alkalinity is too strong, the soil will go from bottom to top, gradually wither leaves and even die. Third, physiological iron deficiency, chlorophyll synthesis is affected, the leaves will become smaller, showing yellow-white. Fourth, generally can withstand the low temperature of less than 10 ℃, but because the rhododendron root is shallow and thin, close to the topsoil, it can not stand the heat. Fifth, due to the slender root system and poor water absorption and supply capacity, it is necessary to be afraid of drought and waterlogging.
2019-01-15 -
Cultivation techniques of stevia rebaudiana
Stevia is the dried leaf of stevia (SteviarebanianumBertoni), a plant of Compositae. Alias stevia, sugar herb, sweet grass. Stevia has a sweet taste in the whole plant, and the leaf is the sweetest. Stevia can increase blood sugar, lower blood pressure and promote metabolism, and can be made into health bars or food additives, which can treat diabetes, obesity, regulate gastric acid, restore nerve fatigue, prevent dental caries in children, etc. Stevia originated in subtropical South America, was successfully introduced in China in 1977 and has been cultivated in more than 20 provinces and cities.
2019-01-15 -
Seedling cultivation of Pinus elliottii, Rhododendron, etc.
The seedlings of five-needle pine and rhododendron in autumn, the seeds and coarse sand were mixed at 1:5 and buried in flowerpots in a field with sunny drainage. Ching Ming Festival sowed seeds before and after. Sow on the seedbed, covered with sandy loam 1 cm, usually two months of seedlings can come out. If the number of seeds is very small, soak the seeds in warm water in spring, 2 after 3 days, carefully break the outer seed coat, pot sowing under the condition of 25 ℃, seedlings can emerge in about 10 days. When breeding wild rhododendron or breeding new hybrid varieties, du Peng often uses sowing method to raise seedlings. Cuckoo
2019-01-15 -
Control of diseases harmful to orchids (3) virus diseases
Virus is a relatively primitive creature, it has no cell structure and can only replicate in host cells. Once infected, there is generally no specific drug for prevention and treatment, so virus diseases can only be prevented by improving environmental hygiene and planting techniques. At present, it has been found that there are more than 20 kinds of viruses that can infect orchids, including CyMV, CMV, DeMV, CyRV and so on.
2019-01-15 -
Propagation methods of Magnolia mandshurica
There are two main methods for the reproduction of Magnolia magnolia: sowing and grafting. (1) sowing and breeding 1. The fruit of Magnolia magnolia harvested and seed storage matured from September to October, and when it matured, the fruit cracked and exposed the red aril, which should be harvested in time when the fruit was slightly cracked and the aril was just red and yellow. After the fruit is harvested, hang it in the shade for 6 days to promote cracking. Take out the seeds with aril and soak them in clean water for 2 days. Wipe off the aril to remove the shrunken grains, or scrub it with plant ash to remove the aril. The obtained Baijing seed mix
2019-01-15 -
How to control anthracnose of Phoenix tail orchid
Cymbidium anthracnose is a frequently-occurring disease of Cymbidium, which spreads very fast. if the disease is not controlled in time, it will not only affect the ornamental effect, but also lead to plant death. Now the symptoms, rules and prevention methods are introduced as follows: symptoms: first occurs at the tip of the leaf, the initial brown spot, then a round or irregular outward expansion, the spot is grayish brown, surrounded by a yellow halo, the surface is scattered with black particles, and the whole leaf is black after being infected. The regularity of onset: the disease is caused by
2019-01-15 -
Brief introduction of anthracnose in Guolan
Cymbidium anthracnose harms Cymbidium, Cymbidium, Jian Orchid, Cymbidium, Cold Orchid and other orchids, causing scorched black spots on leaves and fruits, and in serious cases, the whole leaves die. At the initial stage of the onset of the symptoms, the middle of the leaf showed a round, oval shape, and the leaf edge showed a semicircular reddish-brown spot. It occurs at the base of the leaf, and the whole leaf can die when the disease spot is large or the number is large. In the later stage, the center of the lesion became lighter and the upper chakra was longitudinally ruptured. The disease spot on the fruit is irregular, showing a long black-brown spot. The pathogen is caused by several fungi. According to the separation and training of Shanghai Landscape Research Institute
2019-01-15 -
Control of anthracnose in Phalaenopsis
Phalaenopsis cultivation area, introduction area have no degree of occurrence, harmful to Phalaenopsis and other flowers. Symptoms: the main harm to the leaves, the primary light-colored round spot, and then gradually expanded into brown near-round spot, the edge is dark brown, the middle color is lighter, the late spot gives birth to black spots, the periphery of the spot is yellow. The regularity of the disease: the pathogen is fungus, Alternaria spinifera. When the spores of the pathogen are transmitted by air flow, water droplets, high temperature, sunburn, low temperature, chilling injury, malnutrition and so on, the disease is often easy to occur. Prevention and control methods: (1) Orchid room
2019-01-15