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前言地温对蔬菜的生长发育、产品品质和产量都有很大影响,它对蔬菜根系的形成、根的伸长有直接影响,也对蔬菜花芽形成、养分水分吸收、土壤微生物繁殖有关系。因此,在果菜早熟栽培的育苗期以及定植后,如何调节与提高地温,是一个值得研究的课题。当然,气温对蔬菜生长发育的影响往往比地温更显著,但地温的影响,也是不能忽视的重要问题。应当以栽培为基础,研讨地温与果菜生长发育之间的关系。一方面研究当前栽培中,地温状况及其变化规律,摸清实际生产中存在问题;另一方面研究如何人为地调节与控制地温,采取行之有效的措施和方法。以此为出发点,如后叙述蔬菜保护地栽培的地温问题。
Introduction Ground temperature has a great influence on the growth and development of vegetables, product quality and yield. It has a direct impact on the formation of root system and root elongation. It also has the relationship with flower bud formation, nutrient absorption and soil microbial propagation. Therefore, how to regulate and increase the ground temperature during the seedling raising and early planting of fruit and vegetables and after planting is a topic worthy of study. Of course, the impact of temperature on vegetable growth and development are often more significant than the ground temperature, but the impact of ground temperature is also an important issue that can not be ignored. Based on cultivation, the relationship between geothermal and the growth and development of fruit and vegetables should be studied. On the one hand, it studies the current situation of geothermal temperature and its variation in cultivation, find out the problems in actual production; on the other hand studies how to artificially adjust and control the geothermal temperature and take effective measures and methods. This as a starting point, as described later on the cultivation of vegetable protection ground temperature problem.