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多年来,在温室作物栽培管理中,人们习惯按照果蔬栽培教科书中注明的各种作物生长发育的最适宜温度范围来调控室温,把棚室最高温度控制在27～30℃。然而教科书中注明的各种作物生长发育最适宜温度范围,是众多科研部门在露地自然环境条件下,经多年研究得出的结论。在露地条件下,它是科学的。节能日光温室是基本封闭的栽培设施,其温度、湿度、光照、空气质量等诸多因子都发生了重大变化,已不同于露地环境条件。环境条件的变化,必然引起作物生理特性的变异,因而温室栽培中,照搬露地环境条件下的适温数据调节温度,就难以满足温室作物生长发育的需求。多年实践发现,在温室生产中,其温度调控白天要比露地环境条件下作物生长发育最适温度高2～3℃,如黄瓜、西瓜、甜瓜白天最高适温应控制在30～34℃,番茄应控制在28～30℃,辣
Over the years, in greenhouse crop cultivation and management, people are accustomed to regulate the room temperature according to the most suitable temperature range of growth and development of various crops specified in textbooks of fruit and vegetable cultivation, and control the maximum temperature of the greenhouse at 27-30 ° C. However, the most appropriate temperature range for growth and development of various crops specified in the textbooks is the conclusion drawn by many scientific research departments in the open-air natural environment after many years of research. Under open conditions, it is scientific. Energy-saving solar greenhouse is a basic closed cultivation facilities, its temperature, humidity, light, air quality and many other factors have undergone major changes, has been different from the open environmental conditions. Changes in environmental conditions will inevitably lead to the variation of physiological characteristics of crops. Therefore, it is difficult to meet the demand of greenhouse crop growth and development in greenhouse cultivation by adjusting the temperature of suitable temperature data under the exposed environmental conditions. Years of practice found that in the greenhouse production, the temperature control during the day than under the open field conditions, the optimum temperature for crop growth and development of 2 ~ 3 ℃, such as cucumber, watermelon, melon daytime maximum temperature should be controlled at 30 ~ 34 ℃, tomato Should be controlled at 28 ~ 30 ℃, spicy