The most important thing for greenhouse grapes is the management of temperature and humidity. Especially during the period from the sprouting of grapes to the pre-flowering stage, good management of temperature and humidity will have an important impact on the growth of greenhouse grapes and the results. Therefore, during this period, we can The use of temperature and humidity recorders to carry out real-time monitoring of temperature and humidity environment, and based on the monitoring data to accurately regulate and control, to ensure the smooth growth of greenhouse grapes. 1. Temperature control The temperature management of the greenhouse grape to the pre-flowering stage is divided into daytime temperature management and nighttime temperature control. Within one week after germination, the temperature can be controlled at about 20-25°C based on the monitoring data of the temperature and humidity recorder, and gradually Raise to 25-28 °C. In addition, as far as possible at night to keep the main insulation, the temperature is maintained at 13 ~ 15 °C. Greenhouse grapes are at a temperature below 5°C for a long time or even below zero, so they are harmful to their growth. Therefore, temperature and humidity recorders must be used to strengthen temperature monitoring and take measures to increase temperature in time to meet the growing needs of greenhouse grapes. 2. Control of humidity In greenhouse grape cultivation, air humidity is too high to cause leggy and disease. Therefore, the use of a temperature and humidity recorder to accurately control the humidity of the greenhouse can effectively prevent and control the adverse effects of excessive air humidity on the cultivation of greenhouse grapes. influences. In addition, grape cultivation in greenhouses should avoid flood irrigation, which can be watered by means of drip irrigation, which can prevent the ground temperature from decreasing, and can also prevent high humidity in the shed. The relative humidity of 70-80% before the exhibition leaf is appropriate, and 60-70% after the exhibition leaf is appropriate. The application of a temperature and humidity recorder in the management of temperature and humidity in the greenhouse from the sprouting to the pre-flowering stage can effectively prevent and control the adverse effects of temperature and humidity changes in the greenhouse on the grape crops in the greenhouse, and effectively ensure the safety of grape cultivation in greenhouses. The temperature and humidity control also played a role in scientific planting, increasing production, and increasing efficiency. It is of great significance to greenhouse grape growing. The ball screw drive is an assembly that converts rotary motion to linear motion (or vice versa). It consists of a ball screw and a ball nut packaged as an assembly with recirculating balls. The interface between the ball screw and the nut is made by balls which roll in matching ball forms. With rolling elements, the ball screw drive has a low friction coefficient (typically up to 98%). The forces transmitted are distributed over a large number of balls, giving a low relative load per ball comparatively. C5 Ball Screw,1605 Ball Screw,Linear Motion Ball Screw,Precision Ground Ball Screws SCREW TECHNOLOGY CO., LIMITED , https://www.screw-tech.com
