Optimization and Popularization of Green Organic Vegetable Soilless Cultivation Production Technology
China's soilless cultivation has a long history, but the development process is lagging behind other developed countries. With the implementation of the reform and opening up policy, China also attaches importance to exchanges with foreign technology, and even introduces and digests various foreign soilless cultivation techniques. However, these traditional cultivation techniques mostly use nutrient solution to irrigate the roots of crops. This is a technology, and the technical requirements for the management and configuration of nutrient solution are very high, not every grower can master. It requires specialized researchers to study, so traditional soilless cultivation does not adapt well to the current level of social development. Soilless culture of vegetables is a new type of indoor soilless cultivation method, also known as nutrient liquid culture: the core is to fix the plant roots in the planting basket and let the roots naturally grow into the plant nutrient solution. Liquid can replace the natural soil to provide water, nutrients, temperature and other growth factors to the plant, so that the plant can grow normally and complete its entire life cycle. Therefore, the soilless culture production technology of organic vegetables needs to be optimized and then promoted, especially in some hilly areas, such as Tongyu County, Gansu Province, so that it can largely develop the local economy and improve the living standards of local people. .
1 Reasons for the need to promote soilless culture production technology China is a country with a large population. China's grain planting area cannot be reduced at will. Therefore, the planting area of vegetables is limited, and China has a large population, which not only indicates that China's demand for food is increasing. The demand for vegetables is also increasing, which requires research on the technology of vegetable cultivation. Soilless cultivation technology is undoubtedly a technology suitable for China's reality. In addition, China is a water-deficient country, and per capita water resources are only It is one-fourth of the world's per capita water resources. Soilless cultivation technology not only saves land resources, but also saves water resources. Although China's land area is vast, the land that is really suitable for planting is limited, because China has vast mountains and numerous hilly areas, which are not suitable for planting. For example, the terrain of Tongyu County in Gansu Province is hilly area. In the hilly and sloping area of the Loess Plateau in central Guizhou, the terrain is high in the northwest and low in the southeast, with an altitude of 1 600-2 200 m. And more loess beams, ridges and valley terraces, to develop the local economy, soilless cultivation and production technology is undoubtedly a good choice.
2 Optimization of soilless culture production technology China has introduced and absorbed foreign soilless culture production technology through communication with foreign countries, but this technology has not made people happy because the large-scale promotion of this technology has been restricted. . Hydroponic plants should be supplied with liquid during the cultivation process to ensure adequate nutrient supply. The liquid supply time is generally selected during the day and no liquid supply or less liquid supply at night. The number of liquid supply on sunny days is more, and there is less liquid supply in rainy days; when the temperature is high, the light is stronger, and vice versa. Usually, the liquid is supplied 2-4 times a day, and it can be grasped for 30 minutes each time. This can be adjusted at the right time with the time controller. The traditional nutrient solution soilless cultivation technology can not be widely promoted in China, because the configuration and management of nutrient solution is not easy to master, and requires special technical personnel to operate. It is not suitable for China's national conditions, and this also limits the situation. The further development of soilless culture technology in China. At this time, it is necessary to develop a simple and easy-to-operate method for cultivation. The most important thing about this technique is to replace it with a substance instead of another (mostly the strong to replace the weak). At present, China has found a better way. Organic ecological soilless technology has been successfully developed, which can be better used for the cultivation of organic vegetables. Green organic vegetable soilless cultivation technology does not need to rely on nutrient solution. It can irrigate the roots of plants through clear water. Its nutrient source is organic solid fertilizer, which greatly reduces the cost of planting and improves the efficiency of planting. This kind of planting technology is more in line with China's national conditions than traditional planting techniques, and provides a guarantee for the long-term development of organic vegetables.
3 The promotion of green organic vegetable soilless production technology is based on the topography of Tongyu County, Gansu Province. It is located in the hilly area. The area planted in this area is relatively small, mainly relying on the construction of terraces, and this place is not convenient for irrigation. The water resources are not sufficient. The population of this area is large, and the demand for vegetables can not be ignored. It is very suitable to implement soilless cultivation production technology in this area, which can save land and save water resources. At the same time of cultivation and production, the allocation of human resources can be better realized and the development of the local economy can be promoted. Hydroponic plants are exemplified by pipelined hydroponic vegetable production equipment. Production management is mainly to adjust the time of supply of nutrient solution and the number of liquid supply. The liquid supply time and the number of liquid supply times of the nutrient solution are mainly determined according to the cultivation form, the growth state of the vegetables, and the environmental conditions. There is still a big advantage in promoting this soilless cultivation technique (interpretation: the favorable situation that can overwhelm each other).
3.1 The promotion of soilless culture production technology can reduce the pollution to the environment. In the traditional soilless culture technology, nutrient solution is indispensable, but the nutrient solution will cause certain pollution, especially after using it for a period of time. Both pH and concentration will change. In the process of cultivation, the nutrient solution will be discharged in a certain amount. The discharged nutrient solution contains a high concentration of nitrate nitrogen, which will cause serious pollution to the environment, and now the soilless cultivation technology, waste The liquid is discharged in a small amount and is harmless to the environment.
3.2 The promotion of soilless culture production technology can improve the economic benefits of vegetable cultivation. The organic soilless culture production technology can greatly improve the economic benefits of vegetable cultivation. Organic soilless cultivation uses waste raw materials such as straw or farmyard manure. The raw materials are mixed with high temperature or fermented, mixed with river sand, and a certain proportion of blending to develop the organic cultivation base needed for crop growth. In this way, agricultural waste can be recycled again, and the ecological benefits can be improved while the plants are growing vigorously. Organic soilless culture provides nutrients for the growth of plants, which can increase the growth rate of plants, and allow vegetables to be marketed in advance, and the vegetables grown in this way are more nutritious and healthy, and improve the economic benefits of vegetables while improving the economy of growers. income. The organic soilless culture production technology can increase the yield of vegetables and enable growers to obtain more economic income. Soilless culture technology can make vegetables circulating, reduce the harm of pests and diseases to vegetables, and ensure the income of growers.
3.3 Optimization of soilless culture production technology can improve the quality of vegetables. Soilless culture techniques, from cultivation substrate to fertilizer used, are mainly organic matter, and are processed before use, so the decomposition of these organic matter When releasing nutrients, there will not be too many harmful substances. In the process of growing vegetables, a small amount of inorganic fertilizers will not produce too much chemical pollutants, so the quality of vegetables can be guaranteed, so that it can be very good. Open up sales, quickly occupy the market and increase the income of growers. Although China has vast land, the per capita arable land area is only one-third of the world's per capita arable land area. Coupled with many deserts, swamps and saline-alkali land, these areas cannot be used well, so they can be used in areas that cannot be cultivated. The use of soilless cultivation techniques to grow vegetables can create a road to prosperity for the people in poverty-stricken areas, and at the same time greatly ease the contradiction between food and vegetable cultivation. The rapid development of modern agriculture, the structure of the planting industry has also been adjusted, and the cultivation technology is also constantly improving. The soilless cultivation production technology of organic vegetables is continuously optimized and promoted, which will benefit more growers.
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1 Reasons for the need to promote soilless culture production technology China is a country with a large population. China's grain planting area cannot be reduced at will. Therefore, the planting area of vegetables is limited, and China has a large population, which not only indicates that China's demand for food is increasing. The demand for vegetables is also increasing, which requires research on the technology of vegetable cultivation. Soilless cultivation technology is undoubtedly a technology suitable for China's reality. In addition, China is a water-deficient country, and per capita water resources are only It is one-fourth of the world's per capita water resources. Soilless cultivation technology not only saves land resources, but also saves water resources. Although China's land area is vast, the land that is really suitable for planting is limited, because China has vast mountains and numerous hilly areas, which are not suitable for planting. For example, the terrain of Tongyu County in Gansu Province is hilly area. In the hilly and sloping area of the Loess Plateau in central Guizhou, the terrain is high in the northwest and low in the southeast, with an altitude of 1 600-2 200 m. And more loess beams, ridges and valley terraces, to develop the local economy, soilless cultivation and production technology is undoubtedly a good choice.
2 Optimization of soilless culture production technology China has introduced and absorbed foreign soilless culture production technology through communication with foreign countries, but this technology has not made people happy because the large-scale promotion of this technology has been restricted. . Hydroponic plants should be supplied with liquid during the cultivation process to ensure adequate nutrient supply. The liquid supply time is generally selected during the day and no liquid supply or less liquid supply at night. The number of liquid supply on sunny days is more, and there is less liquid supply in rainy days; when the temperature is high, the light is stronger, and vice versa. Usually, the liquid is supplied 2-4 times a day, and it can be grasped for 30 minutes each time. This can be adjusted at the right time with the time controller. The traditional nutrient solution soilless cultivation technology can not be widely promoted in China, because the configuration and management of nutrient solution is not easy to master, and requires special technical personnel to operate. It is not suitable for China's national conditions, and this also limits the situation. The further development of soilless culture technology in China. At this time, it is necessary to develop a simple and easy-to-operate method for cultivation. The most important thing about this technique is to replace it with a substance instead of another (mostly the strong to replace the weak). At present, China has found a better way. Organic ecological soilless technology has been successfully developed, which can be better used for the cultivation of organic vegetables. Green organic vegetable soilless cultivation technology does not need to rely on nutrient solution. It can irrigate the roots of plants through clear water. Its nutrient source is organic solid fertilizer, which greatly reduces the cost of planting and improves the efficiency of planting. This kind of planting technology is more in line with China's national conditions than traditional planting techniques, and provides a guarantee for the long-term development of organic vegetables.
3 The promotion of green organic vegetable soilless production technology is based on the topography of Tongyu County, Gansu Province. It is located in the hilly area. The area planted in this area is relatively small, mainly relying on the construction of terraces, and this place is not convenient for irrigation. The water resources are not sufficient. The population of this area is large, and the demand for vegetables can not be ignored. It is very suitable to implement soilless cultivation production technology in this area, which can save land and save water resources. At the same time of cultivation and production, the allocation of human resources can be better realized and the development of the local economy can be promoted. Hydroponic plants are exemplified by pipelined hydroponic vegetable production equipment. Production management is mainly to adjust the time of supply of nutrient solution and the number of liquid supply. The liquid supply time and the number of liquid supply times of the nutrient solution are mainly determined according to the cultivation form, the growth state of the vegetables, and the environmental conditions. There is still a big advantage in promoting this soilless cultivation technique (interpretation: the favorable situation that can overwhelm each other).
3.1 The promotion of soilless culture production technology can reduce the pollution to the environment. In the traditional soilless culture technology, nutrient solution is indispensable, but the nutrient solution will cause certain pollution, especially after using it for a period of time. Both pH and concentration will change. In the process of cultivation, the nutrient solution will be discharged in a certain amount. The discharged nutrient solution contains a high concentration of nitrate nitrogen, which will cause serious pollution to the environment, and now the soilless cultivation technology, waste The liquid is discharged in a small amount and is harmless to the environment.
3.2 The promotion of soilless culture production technology can improve the economic benefits of vegetable cultivation. The organic soilless culture production technology can greatly improve the economic benefits of vegetable cultivation. Organic soilless cultivation uses waste raw materials such as straw or farmyard manure. The raw materials are mixed with high temperature or fermented, mixed with river sand, and a certain proportion of blending to develop the organic cultivation base needed for crop growth. In this way, agricultural waste can be recycled again, and the ecological benefits can be improved while the plants are growing vigorously. Organic soilless culture provides nutrients for the growth of plants, which can increase the growth rate of plants, and allow vegetables to be marketed in advance, and the vegetables grown in this way are more nutritious and healthy, and improve the economic benefits of vegetables while improving the economy of growers. income. The organic soilless culture production technology can increase the yield of vegetables and enable growers to obtain more economic income. Soilless culture technology can make vegetables circulating, reduce the harm of pests and diseases to vegetables, and ensure the income of growers.
3.3 Optimization of soilless culture production technology can improve the quality of vegetables. Soilless culture techniques, from cultivation substrate to fertilizer used, are mainly organic matter, and are processed before use, so the decomposition of these organic matter When releasing nutrients, there will not be too many harmful substances. In the process of growing vegetables, a small amount of inorganic fertilizers will not produce too much chemical pollutants, so the quality of vegetables can be guaranteed, so that it can be very good. Open up sales, quickly occupy the market and increase the income of growers. Although China has vast land, the per capita arable land area is only one-third of the world's per capita arable land area. Coupled with many deserts, swamps and saline-alkali land, these areas cannot be used well, so they can be used in areas that cannot be cultivated. The use of soilless cultivation techniques to grow vegetables can create a road to prosperity for the people in poverty-stricken areas, and at the same time greatly ease the contradiction between food and vegetable cultivation. The rapid development of modern agriculture, the structure of the planting industry has also been adjusted, and the cultivation technology is also constantly improving. The soilless cultivation production technology of organic vegetables is continuously optimized and promoted, which will benefit more growers.
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