提出了当量积温为环境因子有效性系数与活动积温乘积的概念。
Based on the study above, another concept of equivalent accumulated temperature is suggested that equals the product of the accumulated t.
分布北界的限制因子，在内陆为冬季绝对低温过低，在海滨为夏季活动积温不足。
The limited factors of the north-distribution are colder absolute minumum temperature in winter in inland and not enough active accumulated temperature in seashore.
以生产上大面积推广应用的水稻主栽品种为样本，分析了东北全区域活动积温与水稻垩白率、垩白面积、垩白度的关系。
Using the main varieties in the production as samples, the relationship between the active accumulated temperature and chalkiness of rice was analyzed.
以生产上大面积推广应用的水稻主栽品种为样本，分析了东北全区域活动积温与水稻垩白率、垩白面积、垩白度的关系。
Using the main varieties in the production as samples, the relationship between the active accumulated temperature and chalkiness of rice was analyzed.
应用推荐