Technical measures to improve the temperature of the grape in the facility
(1) The ridge cultivation combined with the mulching film is effective. (2) Construction of underground fire or geothermal pipes and geothermal lines This measure is most effective for improving ground temperature, but the cost is too high. At present, there is basically no application in China. (3) Reasonable temperature control during artificial concentrated pre-cooling. (4) The bio-heater uses the straw fermentation to release heat to increase the ground temperature. (5) Digging the cold-proof ditch This measure has low cost and remarkable effect. If the thickness of the cold insulation ditch is 5-10 cm, it is better to fill the straw weeds (preferably wrapped with plastic film) to a thickness of 20-40 cm; the depth of the cold ditch is greater than the depth of the local frozen soil 20- 30 cm is suitable; prevent the heat transfer from the soil in the greenhouse to the outside of the greenhouse. (6) The greenhouse was built to be semi-underground. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone As customers have higher and higher requirements for animal reproduction and animal disease diagnosis and treatment, traditional diagnostic methods such as visual inspection, stethoscope listening, thermometer inspection, and percussion and hammering can no longer meet the needs of animal husbandry production and veterinary clinics. Today, B-ultrasound is playing a big role in human medical diagnosis, and in the future, B-ultrasound will also play a role in animal medicine. We should promote the use of veterinary ultrasound scanner step by step according to the actual situation, popularize the knowledge of the use of veterinary ultrasound scanner, take this as an opportunity, and use it as a ladder to improve the level of veterinary practice in our country. Veterinary Ultrasound Scanner,Vet Ultrasound Scanner,Veterinary Ultrasound Machine,Veterinary Ultrasound Equipment Mianyang United Ultrasound Electronics Co., Ltd , https://www.uniultrasonic.com