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Trees

Knowledge Title: Trees Other Title: avenue trees Knowledge Content:  Trees or shrubs planted in a certain way on both sides of urban and rural roads. Also known as a shady tree or road tree. Its function is to create good small climatic conditions for pedestrians, so that roads, squares, homes and public buildings, such as the excessive sunlight and adjust temperature, humidity, smoke, dust, wind, clean air and reduce noise, as well as beautify the city, enhance the landscape, protect roads and combat protection.  Overview China's planting of road trees began in the Spring and Autumn Warring States era, to the Qin and large-scale promotion. Lu's Spring and Autumn contains: “The children of Zheng, peaches, Li hangs in the street.” “This is the beginning of greening the streets with trees. Qin Shihuang Shuchi Road, to the green pine as the road tree, “Dao Guang 50 steps, three feet and trees” (Hanshu Jiashan Biography).……

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Interplanting

Knowledge Title: Interplanting Other Title: relay intercropping Knowledge Content:  The planting of planted or planted post-season crops in the late stages of the growth of the crops in the previous season. In this way, the symbiosis of two or more crops is only a fraction of the reproductive period and is therefore a compound approach aimed at resolving seasonal conflicts between pre-season crops (see inter-work).  The main role of the set-up is to buy time to improve the utilization of light energy and land. More used in a year can be planted 2 or 3 seasons of crops, but the total growth season is not enough in the region. After the implementation of the application, the total output of 2 crops can be compared with only 1 crop single yield has been greatly improved. The set-up is conducive to the timely seeding and seedling of the latter, the use of sets in some places can avoid drought and flood or low temperature disasters, and the role of easing the contradiction between employment during the busy period of agriculture.……

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Plant tissue

Knowledge Title: Plant tissue Other Title: plant tissue Knowledge Content:  A group of cells in a plant that have the same source and morphological structure and perform the same function. They are formed on the basis of cell differentiation and are produced by plants or organs as they evolve and individuals develop to a certain stage.  Low-level plants such as large algae have been differentiated by assimilation tissue, sub-organization and transmission tissue. The differentiation of the living tube plants in the land is highly complicated and is obviously assembled into various tissue systems. Each organization performs certain functions. Crops are mostly highly evolved dimensional tube plants, not only the appearance of organ differentiation, the internal cell function and structure of the differentiation is also very significant. Plant tissues are divided into the following nine categories according to their function, occurrence sequence and morphological structure:……

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Cotton

Knowledge Title: Cotton Other Title: Aphis gossypii Knowledge Content:  Insects are in Homoptera with Aphididae. Also known as melon. Important pests such as cotton and melons. Cotton is also harmful in the cotton region of Xinjiang, China, with the cotton tubes (Acyrthosiphon gossypii), Aphisipon (Aphisaginis) and Xerophylaphis plotnikovi. distribution throughout the world. China's cotton areas have occurred, to the Yellow River basin and liao river basin cotton areas as a heavy harm, in addition to the seedling period for the harm, the bell period can also cause harm, known as “volts.” The Yangtze River basin and the south China cotton region, the miao-period damage is lighter than the north, but the red bell-in-line damage is often no less than the northern cotton area.  Morphology reproduction is in both lone female and male reproduction. The first generation of aphids hatched in winter eggs is called dry mother, with a body length of about 1.……

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Casuarina equisetifolia

Knowledge Title: Casuarina equisetifolia Other Title: Casuarina equisetifolia Knowledge Content:  1 species of Casuarinaceae. Evergreen trees. Also known as short branch edine. There are about 35 species of macae, native to north-east Australia, the north, the Pacific Islands, the Malay Islands and other areas close to beaches and sand dunes. In addition to this species, it is introduced to China with C.cunning-hamiana and C.glauca.  Morphological features The tree can be up to 30 meters high and has a chest diameter of 70 cm. The trunk is straight, the bark is dark brown, and irregularly cracked. Small branches green, instead of the function of the leaves, therefore, called leaf-shaped branches, short, 4 to 8 mm long, leaf degradation is scaly-like, each section of the scaly-like leaves 6 to 8 pieces. Flower monosexual, the same or exotic, polymeric fruit oval, about 2 cm long, diameter about 1.……

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Coral Island Evergreen Forest

Knowledge Title: Coral Island Evergreen Forest Other Title: coral-island forest Knowledge Content:  An evergreen forest type on a tropical coral island. Due to the small area, low altitude, flat terrain, soil-forming mother matter and soil factors, the plant distribution and vegetation development of the island are limited. The performance is poor variety, the forest is low, the hierarchy is simple, often with a single-layer tree with a single advantage. The distribution of coral islands in the world is limited to the tropical ocean between the Northern Regression Line and the Southern Regression Line, and to the West Pacific Ocean.  China's coral islands are mainly located in the South China Sea islands near the latitude of 4 to 20 degrees north latitude, including Zengma dark sand and Xisha, Dongsha, Zhongsha and Nansha four islands. The climate of the South China Sea islands is tropical ocean climate, the annual high temperature, the average annual temperature of more than 26 degrees C, the average temperature in January is 23 degrees C, the absolute minimum temperature is more than 15 degrees C, the annual temperature difference is only 6 to 8 degrees C.……

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Charcoal forest

Knowledge Title: Charcoal forest Other Title: fuelwood forest Knowledge Content:  A forest whose main business purpose is the production of wood-burning or charcoal. And protective forests, timber forests, economic forests, special-purpose forests constitute China's five major forest species.  Overview China has a long history of operating paid carbon forests. There is a description of “planting thousands of trees and footwood” in Qimin's Art. By the 1970s and 1980s, a significant part of rural energy in developing countries was still supplied by wood. Since the mineral energy crisis occurred in the early 1970s, the development and research of energy forest has been paid more attention. The so-called energy forest refers to the main purpose of energy production to create and operate forests. The form of energy can be conventional fuel, charcoal and other solid fuels, or liquid fuels, or energy products provided by further processing (see biomass energy).……

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Bacterial disease

Knowledge Title: Bacterial disease Other Title: sclerotiose Knowledge Content:  Plant diseases caused by fungi such as the genus Sclerotinia, the streptococcus (Monilinia), the genus Rhizoctoctonia, and the microbiotic (Sclerotium). The pathogenesis is assembled into a loose structure, the surface is smooth or rough, the shape, size, color of different bacteria nucleus. A pseudoidnuclea formed by mycelium and a mixed host tissue. The latter is easier to diagnose because they also tend to maintain the shape of plant organs (e.g. stiff fruit, etc.).  Pathogens are both parasitic. Generally only infringes on mature or decaying plant organs, and rapidly causes necrosis of plant tissue after invasion. Typical symptoms are decay of stems, fruits, flowers, etc., sometimes with necrosis spots on the leaves. Bacteria exhibit strict parasitic specialization or selectivity to plant organs. The sac spores of these fungi have strong radiation capacity, and the spores are easily dispersed and are mainly transmitted through air flow.……

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History of hemp crop cultivation in China

Knowledge Title: History of hemp crop cultivation in China Other Title: history of stem-fiber crop cultivation in China Knowledge Content:  Hemp crops grown in ancient China, mainly cannabis and castor, were secondary. Marijuana, white leaf seed castor (also known as Chinese castor) and castor native to China. Marijuana is still known in some countries as “hemp” or “Chinese hemp”, while castor is called “Chinese grass” or “Nanjing hemp”.  Origin and transmission China has a long history of using and growing hemp crops. In the Neolithic ruins, there are textile hemp fibers with stone or pottery spindles, spinning wheels and so on. The physical objectofing of castor fabric swashes unearthed at the Neolithic site of Wuxing Qianshan in Zhejiang Province proves that China has used and grown hemp for at least four or five thousand years. The pottery unearthed by Da Hezhuang and Qin Weijia in Yongjing County, Gansu Province, also has the marks and marks of the hemp fabric, and the material of cannabis fabric smudges has also been unearthed at the Shang Dynasty site in Taixi Village, Hebei Province, and the early week site of Gaojiabao in Shaoyang, Shaanxi Province.……

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Indian Agricultural Research Council

Knowledge Title: Indian Agricultural Research Council Other Title: Indian Council of Agricultural Research,ICAR Knowledge Content:  Central level of the Indian agricultural research system. Founded in 1929, Hyderabad is headquartered. The Chairman and the Director-General are headed by the Department of Agricultural Research and Education of the Ministry of Agriculture, with the Minister and the Director-General, respectively. Its mission is to lead and coordinate the fields of agricultural, pastoral and fisheries research, education and extension, to advise the Government and to conduct international academic exchanges. There are 38 research institutes in agriculture, veterinary medicine, dairy, rice, cotton, jute, sugar cane, horticulture, fisheries, agricultural engineering, etc., all of which are based on applied basic research, in addition to 11 national research centres and five steering committees for research projects such as rice, wheat, legume crops, oil crops and dryland agriculture. The Agricultural Research Council supports and directs 23 agricultural universities, which are located in the states and act as regional centres for scientific research and education.……

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