Planting Technology Lists
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Control methods of anthracnose in Magnolia
The main results are as follows: (1) strengthen the management of water and fertilizer, increase the application of organic fertilizer and enhance plant disease resistance. (2) cut off the diseased leaves on the tree in time, clean the diseased and withered leaves on the ground, concentrate and bury them deeply, and reduce the source of infection. (3) at the initial stage of the disease, 84.1% Dobao wettable powder and 77% Kesha wettable powder were sprayed every 15 days for a total of 2 times. In the future, depending on the condition, spray 75% chlorothalonil wettable powder with a dose of 600 to 1000 times and 70% anthrax Fumei.
2019-01-15 -
The difference between Drug damage and Fertilizer damage of Rhododendron
Rhododendron has the same characteristics and different performance in drug damage and fertilizer damage. The similarity is that the leaves will wither and fall off in a short time, but the plaque will not expand slowly and the pathogen will not appear on it. The difference between drug damage and fertilizer damage is shown in that azaleas are sensitive to certain or certain pesticides, for example, after spraying certain pesticides, the parts stained with the liquid in the leaves turn yellow, withered and fall off within a few days, seriously affecting the growth of the plant, but not.
2019-01-15 -
Fertilization technology of rhododendron
Cuckoo root is delicate, fertilizer must be cooked before it can be used. Generally, it is more suitable to use retting fertilizer which has been fully fermented for more than one year. Five points should be paid attention to in fertilizing: look at the seedlings to fertilize. The seedlings can not be fertilized, and the liquid barnyard manure which is well retted and extremely thin can be applied after 4 months. After the plants are set and planted in the next spring, more nitrogen and potassium fertilizer should be applied to accelerate vegetative growth. Phosphate fertilizer should be applied in 2 ~ 3 years of adulthood to make the flower rate high and the flower large and colorful. In the old age, more nitrogen fertilizer can be applied to promote the renewal of branches and leaves, rejuvenate the tree and prolong the age of the tree. Fertilize at the right time. Morning
2019-01-15 -
Fertilization Technology of Cymbidium
Hanging orchid, people call it "flowers in the air", the flowerpot on the balcony, railing, and other potted flowers can be reflected up and down into interest, very beautiful. The hanging orchid is also a natural scavenger, which can remove harmful substances from the air. Some studies have shown that the orchid can absorb more than 80% of the indoor harmful gases and has a strong ability to absorb formaldehyde. The engineer of the Indoor Environment Monitoring Center of China Decoration Association believes that the orchid is one of the most suitable plants to be placed in the room. Cymbidium is a more fertilizer-tolerant foliage plant, if there is not enough fertilizer and water, it is easy to scorch head senescence, leaf yellowing and loss.
2019-01-15 -
Measures of fertilization and watering of alpine rhododendron
There are many theories about the fertilization of alpine rhododendron. From our practice in recent years, we should change our traditional centralized fertilization method and replace it with "thin fertilizer application frequently", that is, balanced fertilization for each watering, paying special attention to the ratio of N:P:K in different growth and development stages. Because of its great influence, we should try our best to carefully detect and analyze each watering in order to prepare the most ideal pH value and EC value. We have done a lot of experiments at different growth stages, such as 12 gradients from pH3.8 to 7.1.
2019-01-15 -
Five key points in applying fertilizer to rhododendron
Cuckoo root is delicate, fertilizer must be cooked before it can be used. It is generally used for retting for more than one year, and the fully fermented fertilizer is more suitable. Fertilization should pay attention to the following five points: look at the seedlings to fertilize. The seedlings can not be fertilized, and the liquid barnyard manure which is well retted and extremely thin can be applied after 4 months. After the plants are set and planted in the next spring, more nitrogen and potassium fertilizer should be applied to accelerate vegetative growth. Phosphate fertilizer should be applied in 2 ~ 3 years of adulthood to make the flower rate high and the flower large and colorful. In old age, more nitrogen fertilizer can be applied to promote the regeneration of branches and leaves and the tree body.
2019-01-15 -
There is a difference between different varieties of orchids and more fertilizers.
Orchids are large in color and bloom for several months. They are the mainstream varieties of New Year flowers in recent years. As a result of the variety of orchids, several main varieties of fertilization methods are described as follows. 1. Cymbidium pendula can be fertilized by the following three methods: First, the fertilizer is proportioned and mixed with the substrate for plant growth and development. Second, the solution prepared from the fertilizer according to the proportion is poured into the matrix in stages. Third, the proportioned fertilizer is made into solid particles or fertilizer blocks and applied to the surface of the substrate. More fertilizer should be applied in sunny seasons to ensure plant growth
2019-01-15 -
Disease knowledge Magnolia brown spot
Symptoms: the pathogen mainly infects the leaves. The diseased leaves initially appeared light brown or yellow dots on the surface, one enlarged into round or irregular spots, 5-12 mm in diameter, dark brown at the edge, grayish white in the center, and many black dots on it. The disease spots can merge into amorphous large-scale necrotic damage. In general, the disease begins to occur in summer and the harm is more serious from August to September. Pathogen and disease status: Magnolia brown spot, also known as spot disease, is a common disease of Magnolia magnolia. Magnolia mandshurica is cultivated in all the areas in China, such as Suzhou, Nanjing, Wuhan,
2019-01-15 -
Reasonable Flower and Fruit thinning to promote stable and High yield of Waxberry
The main fruit of red bayberry is short and medium fruit branches. Because only the terminal buds of these two types of fruiting branches are leaf buds, and the rest are mostly differentiated into flower buds, if they are allowed to bear fruit naturally, the fruit is often excessive, small and poor in quality, and it is easy to cause large and small years, so fruit thinning should be carried out in order to achieve stable and high yield. The fruit thinning period of ⑴ usually takes place in the middle and late April before the rapid expansion of the fruit after setting the fruit. In ⑵ fruit thinning method, 3 fruits were left in every 6 fruit branches, 3 fruit branches were removed, and 2 fruits were left in each fruit branch. The principle of ⑶ fruit thinning is that the upper part of the crown leaves less and the lower part of the crown.
2019-01-15 -
The red spider of rhododendron
The female adult is about 0.3 mm long, dark red, nearly oval, the back of the body is raised, 4 pairs of dark red; the male adult is 0.25 mm long, cuneate, flattened bright red. The adults overwintered in the root of the plant, mainly near the main vein of the petiole on the back of the leaf, propagated rapidly in high temperature, less rain and drought weather from June to July, and the damaged leaves were scorched and shedded when the damage was serious. Prevention and control method: manual control, often checked after April, found that individual leaves have red scallops
2019-01-15