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China: nutrient liquid film hydroponics in solar greenhouse

In the Juhaikuo Vegetable Cultivation Cooperative in Miyun District, Beijing, the greenhouse is full of plants, the growth is gratifying, and the production in the park is in full swing, despite it being the hottest period of the year. Since the transplanting in early July, both water spinach and amaranth have been harvested for 4 consecutive crops, with an average crop cycle taking 10-12 days and an average yield of 22,500 kg per ha. With this result, the growers realized nutrient liquid film hydroponics both enriches the crop and increases production. 

In order to properly grow the crops, technical staff provides technical guidance throughout the entire process from sowing and raising seedlings, disinfection of greenhouses, field management, pest control, and cutting regeneration. 

As the temperature rises, it is best to choose plants that thrive in higher temperatures. Water spinach and amaranth are such plants, growing best between 25 and 30 degrees Celsius. To ensure the quality and safety of vegetables, a plant-derived agent called Isothiocyanates, is used to disinfect the surface of the greenhouse to reduce the incidence of pests and diseases.

Energy-saving and environmental protection

Water spinach and amaranth grow best in higher temperatures. This makes the requirements for growing it in summer relatively simple, as fans, wet curtains, etc. are not required. Generally, a layer of shading net (shading rate 75%-85%) is enough to create the ideal temperature for the plants. Not only does that greatly reduce the input of cooling costs, but it is also a sustainable choice.

Realize the high-efficiency and high-quality production of annual hydroponic leafy vegetables

Hydroponic water spinach and amaranth overcome the summer production problems of lettuce, celery, and other leafy vegetables which need colder temperatures, achieve annual production through a variety of vegetables with different crops, and help increase agricultural production and benefits.

Source: www.farmer.com.cn


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