各种作物生育对温度的要求都有一定范围,它们都有一个最低、最高和最适点,过高或过低的温度将给作物带来危害。植物生长或有机体体积的积累,是在连续的、同时进行的两个相反的过程中形成的,为两个过程是:同化过程即光合作制造有机物负和异化过程即呼吸作用消耗有机物负,有机物负的积累是两个相反过程的对立统 Various crops have a certain range of temperature requirements, they have a minimum, maximum and optimum point, too high or too low temperature will crop hazards. Plant growth or accumulation of the volume of the organism is formed in two opposite processes that are continuous and simultaneous. The two processes are: the process of assimilation, that is, the production of organic matter by photosynthesis, and the process of the dissimilation, that is, the respiration, which consumes the negative and the organic Negative accumulation is the opposite of two opposite systems