Too low light tolerance of tomato, referred to as low light disease, is a kind of physiological disease caused by insufficient light, which mainly occurs in the winter and spring seasons. Hazardous characteristics The tomato is sensitive to the light reaction. When the light is insufficient, the growth and development are slow, and the falling flower increases. If the temperature is low under low light conditions, the amount of pollen is reduced, the starch grains are also small, the pollen germination rate is reduced, the style of the pistil is not well developed, and the ability to fertilize is reduced, and the unfertilized flower will fall off. Under low light conditions, the development of the fruit is inhibited, the weight of the single fruit is reduced, and the empty fruit and fruit rot are increased. Prevention measures are mainly to improve lighting conditions in the shed as much as possible. When planting, increase the row spacing and reduce shading between the plants; keep the shed membrane clean and prevent the membrane surface from adhering to water droplets and dust; when the external temperature reaches 15°C before and after the tomato growth and noon, properly expose some of the shed membranes. The sun shines directly into the shed. According to another test, the use of polyester aluminized film spliced ​​into 2 meters wide, 3 meters long reflective screen, hanging in the plastic greenhouse (or greenhouse) after the upper end of the column, hanging down to the ground, the ground can add 40% to 43%, The greenhouse temperature increased by 3°C～4°C, the ground temperature increased by 1.8°C～2.9°C, the yield of tomato was 41.8%～58.1%, and the quality of the fruit was improved; the laying of silver gray film or aluminum foil on the ground could also increase the light intensity among the plants and make the tomato It is well colored and prevents premature aging of the lower leaves.
The Medical Bed Head Unit is made of aluminum alloy sections, of which the surface is treated with acrylic painting or electrostatic spray. It is equipped with the dismountable panel, three built-in cabling channels for gas, strong electricity and weak electricity, and external leakage protectors, bedside lamps, large toggle switches, five-hole multi-function socket, gas terminal and Medical wards calling system. The hospital can choose the appropriate color in line with the environmental requirements.
Bed Head Unit For Ward
Bed Head Unit For Ward ,Bed Head Panel ,Hospital Bed Head Panel,Mural Bed Head Unit
Hunan Eter Electronic Medical Project Stock Co., Ltd. , http://www.eter-tech.com