我们在本刊1990年第4期的“服务窗口”。专栏谈到了水与甜菜的关系,阐述了没有水,就没有了包括甜菜在内的一切生物的生命;水多水少直接关系到甜菜的产量与质量。这里我们拟进一步谈谈甜菜的蒸腾与灌溉的问题,作为上次的补充。大家知道,蒸腾作用、光合作用和呼吸作用是甜菜叶片的三大主要生理功能。甜菜依靠叶片的蒸腾作用作为动力,使土壤中的 We are in the 4th issue of 1990, “service window.” The column mentions the relationship between water and sugar beet, states that without water, there is no life of all living things, including sugar beet; water less water is directly related to the yield and quality of sugar beet. Here we intend to further talk about the issue of sugar beet transpiration and irrigation, as the last supplement. As we all know, transpiration, photosynthesis and respiration are the three major physiological functions of sugar beet leaves. Beets rely on the transpiration of leaves as a motivation to make the soil