Method for judging lodging resistance of sugarcane

The invention discloses a method for judging lodging resistance of sugarcane, and relates to the technical field of agricultural planting. The method comprises the following steps: selecting a stalk inclination angle, a weight ratio of 1-5 sections, a weight ratio of 11-15 sections, stalk fiber content, an absolute slope value of an internode diameter trend line and an absolute slope value of an internode volume trend line as evaluation indexes in a harvesting period of the sugarcane, comprehensively scoring the evaluation indexes, and calculating a comprehensive lodging index, and grading the comprehensive lodging index to judge the lodging-resistant capability of the sugarcane, wherein the specific grades are as follows: the lodging-resistant capability is strong, and the comprehensive lodging index is greater than or equal to 40; the comprehensive lodging index is larger than or equal to 30 and smaller than or equal to 40; the comprehensive lodging index is less than or equal to 30. The evaluation method c