Tulips are perennial herbs of the Liliaceae family and are popular with people for their large flowers and colorful colors. Due to the best-selling products in the market, many countries have devoted themselves to the research of their cultivation techniques. The production of hydroponic cut flowers is gradually welcomed by professional growers. China began to introduce experimental cultivation in the 1990s. At present, the domestic water culture experience is mainly: 1. The selection of suitable and disease-free bulbs is the key to hydroponic production of tulip cut flowers. 2. After the ball is returned, it must be stored in a cold storage room that has been calibrated. The temperature is 5°C and the humidity is within 80%. Inspect and pick out bulbs that are severely colored with penicillin in time. 3, according to the need to spend time, select and determine the cultivation time and planting methods. For hydroponic cut flower cultivation, the bulbs should be planted in sterile and watertight dials so that the rooting temperature is stable at 8°C and humidity between 60% and 70%. 4, rooting about two weeks, to ensure that the root length of 3 cm or more, the dial will be shipped to the greenhouse. The temperature is controlled at 15°C to 20°C, the humidity is 60% to 70%, and the nutrient solution is added to make the Ec value in the water 1.5ms to 2.0ms to facilitate the rapid growth of the tulip. 5, in the early stage of growth to prevent the disease caused by filamentous fungi, can be sprayed 2 to 3 times. Pharmacists selected low-toxicity, high-efficiency chlorothalonil, thiophanate-methyl, and thibetam etc. The concentration was between 750 and 1000 times. 6, depending on the growth of timely spraying leaf fertilizer, coordinate vegetative growth and reproductive growth. 7. During growth, due to the effects of root exudates and other environmental conditions, a layer of oil film will be generated on the surface of the dial plate, which will cause the lack of nutrient supply in the root system, resulting in brown roots. Therefore, change water 2 to 3 times as appropriate. 8. When the harvested cut flowers have been delivered in the future, they must be placed in a cool, ventilated place to avoid glare, high temperature, and low temperature and affect cut flower quality. Double anti-fog double films face shield Double anti-fog double films face shield Dongguan Marvec Electronic Technology Co.,Ltd , http://www.marvec-cn.com