Planting Technology Lists
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Prevention and control of diseases and insect pests of eight Immortals
The disease and insect pests of the eight Immortals prevent and control the symptoms of green petal disease of the eight Immortals: the plant is short and atrophied; the color of the inflorescence decreases, the petals usually turn yellowish green, and the flowers are small or without flowers. The route of infection is caused by the infection of mycoplastids (MLO for short). Mycoplastids mainly survive and survive the winter on various perennials such as daisy, spring white chrysanthemum, Plantago przewalskii, Suaeda salsa, unmanned chrysanthemum, bitter borage and other perennials, and mainly infect these plants through leafhoppers. In addition, dodder can also transmit poison. Prevention and control methods 1. Timely elimination and destruction of diseased plants to reduce
2019-01-16 -
A method of dwarfing eight Immortals
Baxian flower, alias hydrangea, powder ball flower, in the subtropics, tropics for evergreen shrubs, like semi-shade humid environment, flowers in full bloom during flowering, its color also varies with the acidity of the soil, the flower is light red when the soil is alkaline, and the flower is blue when the soil is acidic. The normal flowering period of potted Baxian flower is from May to August, if it is not treated and allowed to sprout and grow, its plant height can reach 50-70cm, it is easy to lodge in the pot, and the flower has little effect on the ornamental value. How to make potted eight Immortals
2019-01-16 -
Leaf spot of Impatiens balsamina
[alias] Fengxianhua brown spot. Leaf spot of eight Immortals is one of the common diseases on eight Immortals. Sichuan, Henan, Guangdong, Taiwan, Jilin, Shanghai, Zhejiang, Hunan and other places. [symptoms] the disease mainly occurs in leaves. The foliar spot is a light yellowish brown watery spot at first, and then expands into a circle, nearly round, with a diameter of 2 to 5 mm, up to a maximum of about 15 mm. Later, the center is light brown, the edge is dark brown, slightly raised, with inconspicuous wheel lines, and the disease produces small black spots, that is, the conidium of the pathogen. Severe susceptibility
2019-01-16 -
Cultivation and maintenance of jasmine
The propagation of jasmine is commonly used by cutting and striping. Cutting can be carried out from April to October, the fastest rooting in summer, cutting mature annual branches 10 cm long, remove the lower leaves, cut in the sand bed, rooting after 60 days. Pressing, select the longer branches, at 15 cm, it is best to gently cut the lower part of the node, buried in the sand mud basin viscera, often keep warm, take root after 2-3 weeks, and cut off from the mother plant to form seedlings after 2 months. Cultivation watering is the key, every morning and evening watering in midsummer, such as dry air, need to spray water to increase air humidity, avoid middle-aged watering
2019-01-16 -
Key points of cultivation of jasmine
Jasmine is Oleaceae, Jasmine, alias Camellia, evergreen shrubs and flowers, which are watched in pots in the north. Single leaf opposite, oval or oval, glossy, flowers white, divided into single valve, single extremely fragrant, followed by double. Cymes are composed of 3 to 9 flowers, flowering from May to October and from July to August in summer. Ecological habits originated in India and other places, like warm and humid climate, like light, not cold, afraid of drought but also afraid of waterlogging. Like humus-rich, fertile and well-drained slightly acidic soil. The optimum temperature for growth is 1.
2019-01-16 -
Cultivation and conservation of African jasmine
African jasmine is easy to adapt to unfamiliar environment and can be planted in courtyards and balconies. African jasmine branches as emerald, leaves shiny, flowers slightly fragrant, elegant flowers, each five-petal, umbrella-shaped, clustered at the top of the flower branch. The flowering period is very long, blooming in winter and summer, and blooming most brightly in spring and summer. Early in the morning or dusk, if there is no faint fragrance, refreshing. African jasmine is an evergreen (climbing) shrub or small tree of Brucaceae originating in southern China and Southeast Asia. Formerly known as Cinnamomum chinense (see Atlas of higher plants in China
2019-01-16 -
Pest control: how to control jasmine diseases and insect pests?
The diseases of jasmine during the growth period are: Jasmine stem rot, white silk disease; insect pests are: jasmine leaf borer, shell insects, cinnabar leaf e. (1) stem rot of jasmine. The disease occurs at the base of the stem, and the initial spot is brown and watery. The plaque expands longitudinally into stripes. The edge is dark brown, the inside is grayish brown, and the tissue of the disease class in the later stage is decayed and split longitudinally, and black granules appear. The disease will occur throughout the year during the greenhouse maintenance period, especially in early spring. Outdoor maintenance also occurs from August to September. High temperature and humidity condition
2019-01-16 -
Cultivation and maintenance of Jasmine Flower
Jasmine, also known as Mali and Camellia, is a perennial evergreen shrub of the genus Jasmine of Oleaceae. Native to India and other countries, there are cultivation in the north and south of our country. The jasmine plant is exquisite and beautiful, the leaves are emerald and green, the flowers are white and fragrant, and it is known as the first fragrance of fragrant flowers. Its fragrance is clear but not light, strong but not strong, the flowering period is long, and it blooms most in summer. A pot of fragrance floats all over the room on the courtyard windowsill and balcony, which is the most common fragrant potted flowers and trees. Biological characteristics of jasmine flowers like warm, humid and sunny environment, afraid of freezing and drought
2019-01-16 -
A New Cultivation Technique of Cotton for Saving Labor and Increasing Yield
This technique is based on the cultivation method of cotton without pruning and branching, only topping and edge center, which is also called secondary topping cultivation method. It is a more labor-saving one-time topping cultivation method, which saves at least 70% labor and increases yield by more than 8%. The cotton quality is basically the same as that of the traditional method. The key techniques are as follows: 1. Select the varieties and sow them in the middle. It is advisable to select varieties with large plant type, strong growth in middle stage, seed cotton yield of not less than 350 kg per mu and high yield of more than 500 kg. Usually, Huakang III series, Qiufeng big boll series and disease resistance should be selected.
2019-01-16 -
Application of base fertilizer skillfully to cotton to maintain yield increase
The basic fertilizer of cotton field is to increase various organic fertilizers or biological organic compound fertilizer; secondly, to achieve formula fertilization and balanced fertilization, and the proportion of nitrogen, phosphorus and potassium is 3:1:3; thirdly, to increase potassium fertilizer for insect-resistant cotton, the base fertilizer per mu shall not be less than 15 kg, and zinc fertilizer 0.5~0.7 kg and boron holding capacity 0.4 kg shall be applied; fourthly, proper fertilization shall not be blindly pursued, and 25~30 kg of ternary compound fertilizer with high content shall be applied per mu; Fifthly, the fertilizer should be changed to trenching and strip application or hole application. The root system of cotton seedlings should be protected with fertilizer.
2019-01-16