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一,甜菜生育所需要的积温甜菜各个生育期的通过,都要求一定数量的温度积累(即积温)。甜菜生育期约150天左右,需要的积温在2,000~3,500 ℃。甜菜全生育期的量适宜的积温约在3,000℃.甜菜全生育期如果达不到2,600℃的积温,不易得到丰产。2,600℃的积温称作甜菜生育的“限界积温”。甜菜生育所需要积温的合适分配约:
First, the beet fertility required beet Beet each passage through the growth period, require a certain amount of temperature accumulation (ie, accumulated temperature). Sugar beet growth period of about 150 days, the required accumulated temperature of 2,000 ~ 3,500 ℃. The appropriate accumulated temperature of the whole growth period of beet is about 3,000 ° C. If the accumulated temperature of beet reaches less than 2,600 ° C., it is not easy to obtain high yield. The accumulated temperature of 2,600 ° C is called the “limit accumulated temperature” for the growth of sugar beet. Beet fertility required for proper temperature distribution about: