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What does the Huangtan tree look like? Detailed introduction to its morphological characteristics
The Huangtan tree is a pioneer tree species for greening barren hills and wastelands, and can be used as a shade tree, landscape tree, and street tree, and can serve as a greening tree species for calcareous soil. So, do you know what the Huangtan tree looks like? 1. What does the Huangtan tree look like? The Huangtan tree is a plant of the genus Dalbergia in the Fabaceae
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Which plants rely on animals to disperse their seeds?
Plants are a very important part of the ecological environment. At present, the call to protect the environment is growing louder, the area of greenery is also growing larger, and very many people are planting all kinds of plants. So what relies on animals to disperse seeds? 1. What relies on animals to disperse seeds? Relying on small
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What Does the Mysore Thorn Tree Look Like? A Detailed Explanation of Its Morphological Characteristics
The Mysore thorn is a vine plant. Its bark is dark red; the branches, leaf rachises and inflorescences are all covered with soft hairs and hooked thorns. The petals are yellow, round or obovate, 10-12 mm long, curling backward when in full bloom, with stamens equal in length to the petals. Its pod is oblong-ligulate, 6
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Control Methods for Three Major Physiological Diseases in Navel Orange Cultivation
For fruit cracking disease, the first step is to select varieties (lines) with strong cracking resistance. Generally, varieties (lines) with oval fruit shape, small navel or closed navel have better cracking resistance, such as Newhall and others; second, scientific management should be strengthened to enhance tree vigor. Especially during the dry period after the plum rain season and before the autumn rains arrive
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What are the climate and ecological requirements for growing pineapple?
1. Temperature. Under conditions with an annual average temperature above 23°C and high humidity, pineapple grows and develops well. The most suitable daily average temperature for production is 24-27°C. At 10-14°C, production is slow, and below 10°C growth tends to stop, manifesting as new roots ceasing to grow and leaves unable to continue growing.
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What are the causes of cotton square and boll shedding?
1. Physiological shedding. Physiological shedding accounts for about 60-70% of total square and boll shedding, mainly caused by improper management and damage from pests and diseases, which leads to nutrient imbalance in the plant and insufficient nutrients for squares and bolls. There are mainly the following three aspects: 1. Poor root development, insufficient absorption of water
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Key Technical Points for Pest and Disease Control During the Cotton Seedling Stage
Due to the influence of ecological conditions, meteorological factors and so on, pests and diseases during the cotton seedling stage are characterized by many species, rapid development and severe damage, often causing missing seedlings and broken rows in cotton fields, and in severe cases, large areas of death. The main diseases that occur include black root rot, red rot, damping-off, anthracnose
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How to apply biological pesticides in tea production
Tea has vast production areas and numerous varieties in our country; it is an important daily consumer product for the people of our country, and at the same time a major agricultural product that earns foreign exchange through export. The current tea market, especially tea exports, has very high requirements for tea quality and safety. At present, in Chinese tea
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What ecological conditions are needed for mango cultivation
I think everyone is very familiar with mangoes. Many people in daily life like to eat mangoes, but mangoes contain certain components, and some people develop an allergic reaction after eating them. Therefore, although mangoes are delicious and highly nutritious, they are a tropical fruit
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What are the control methods for the Oriental fruit fly (Bactrocera dorsalis)?
[Morphological characteristics] The adult is 6-8 mm long with a wingspan of 16 mm, and the whole body is alternately dark black and yellow. The thorax has a total of 11 pairs of bristles, mostly yellowish-brown, including 2 pairs of scapular bristles, 2 pairs of dorsocentral bristles, 1 pair of presutural bristles, 2 pairs of postsutural bristles, 1 pair of mesopleural bristles, 1 pair of pteropleural bristles, 1 pair of prescutellar bristles, and 1 pair of scutellar bristles. The abdomen is oval, with 4 segments in males and 5 segments in females. The ovipositor is well developed, but its length is less than half of the abdomen, and the narrow posterior portion is shorter than the fifth abdominal segment. The egg is spindle-shaped, slightly pointed at one end, slightly curved, about 1 mm long and about 0.1 mm wide, milky white. Larva: the first-instar larva is 1.2-1.3 mm long, the second instar is 2.5-5.8 mm, and the third instar is 7.0-11 mm. The first-instar larva is semi-transparent, the second and third instars are milky white, and the mature larva after the third instar is orange-yellow. The body is conical, small and pointed at the front end, the mouth hooks are black, and the button-shaped structure on the inner side of the spiracular plate is relatively large and obvious. The pupa is oval, about 5 mm long and about 2.5 mm wide, light yellow.
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