China News Service, Langfang, April 16th (Song Mintao and Ma Minlu) On the 16th, in the solar greenhouse of Xiaoman Family Farm in Xilonghuzhuang Village, Yongqing County, Langfang City, Hebei Province, the sound of water was bursting, and a large piece of lettuce was growing gratifyingly.

  "There is nutrient solution under the lettuce, and the sound of water is the sound of the nutrient solution circulating." Liu Cuimin, head of Xiaoman Family Farm, introduced that lettuce has more than ten varieties such as green cream, red cream, and wrinkled leaves, all of which are hydroponic Lettuce, from sowing, germination, planting, to mature picking, has been in the nutrient solution, never touched a little soil, and has no pesticide residues and chemical fertilizer hazards.

At present, the farm produces 2.6 million high-quality hydroponic vegetables per year, which are directly supplied to Beijing Hema Xiansheng supermarket and Meituan grocery store all year round, with an annual output value exceeding 10 million yuan.

The picture shows the employees of Xiaoman Family Farm in Yongqing County picking and packing lettuce.

Photo by Liu Xinyu

  "Hydroponic vegetables have very high requirements for water quality. If ordinary tap water is used, the roots of the vegetables will turn yellow and even rot." Liu Cuimin said that the farm has installed a water purification system and is connected to a smart water quality detector to detect the water content every 24 hours. Whether the nutrients are up to standard, and trace elements are automatically added according to the detection situation to ensure the stable growth of the dishes.

  In the former Liuguanying Village of Yongqing County, the Yongqing Experimental Base of the Planning and Design Institute of the Ministry of Agriculture and Rural Affairs (National Facility Agriculture Research Center) is located here.

In the huge intelligent multi-span greenhouse, the environmental parameter sensors at the top of the greenhouse are monitoring the temperature, humidity, light and carbon dioxide of the entire greenhouse in real time.

  "The air temperature in the greenhouse is 25.5°C, and the humidity is 75%..." The staff logged into the intelligent control platform, clicked the mouse, and the temperature, humidity and other data were clear at a glance.

The picture shows the technicians collecting data in the intelligent multi-span greenhouse of Yongqing Experimental Base.

Photo by Zheng Chenzi

  "The environmental control devices such as room curtains, fans, and external sunshade curtains in the intelligent multi-span greenhouse are adjusted through the intelligent control platform. Once the monitored parameters such as indoor temperature and humidity are different from those required for the ideal growth of plants, the environmental control system will Send instructions to the corresponding climate control system, irrigation system, etc., and perform tasks such as cooling, humidification, and ventilation in a targeted manner." Pan Shoujiang, deputy director of the base, introduced that stable temperature and good lighting make vegetables better quality.

  According to Pan Shoujiang, the base can cooperate with the Facility Agriculture Research Institute of the Planning and Design Institute of the Ministry of Agriculture and Rural Affairs to carry out scientific research projects, conduct research and development of intelligent equipment, strategic technology models, and test greenhouse structures.

The base has an intelligent multi-span greenhouse of 5,018 square meters with multiple partitions, which can carry out tomato, cucumber, leafy vegetable cultivation experiments and seedling raising experiments.

Through this kind of scientific planting, the income per mu can reach 30,000 to 50,000 yuan, which plays a leading role in the transformation and upgrading of local traditional agriculture.

The picture shows the technicians collecting data in the intelligent multi-span greenhouse of Yongqing Experimental Base.

Photo by Zheng Chenzi

  In recent years, Yongqing County has vigorously promoted the upgrading and upgrading of the vegetable industry, realized the intelligent production of vegetables, changed from "growing vegetables" to "growing vegetables intelligently", and created an industrial chain with new varieties, high quality, high technology content and industrial chain in the area around Beijing and Tianjin. Complete production and sales supply base.

  According to statistics, at present, the vegetable planting area in Yongqing County reaches 305,000 mu. There are 120 vegetable varieties in 13 categories. The total annual output is 1.5 million tons, and the annual output value is close to 2 billion yuan. The characteristic fruits and vegetables are produced in four seasons, and the annual listing is the main vegetable producing area. The per capita annual income of farmers is more than 17,000 yuan.

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