农业机械学报2011，Vol.42Issue(6)：89-92,4.
玉米秸秆力学参数与抗倒伏性能关系研究
Relationship between Corn Lodging Resistance and Mechanical Parameters
摘要
Abstract
Corn stalk strength and elastic modulus are important influence factors in lodging resistance of corn. Through the mechanical experiments testing of the five varieties of corn stalk, it indicated that the stress and elastic modulus of different varieties of corn stalk strength were significantly different. The method of determining the bending strength and elastic modulus of the corn stalk was discussed. The corn stalk tester based on the simple beam model and the corn stalk elasticity tester based on the cantilever model were designed. The stretching pressure sensor, MCK - Y automatic display apparatus as the main part of electronic components, with force-loading mechanism by manual force realized digital display of bending strength and elastic modulus. The bending strength and elastic modulus of five different corn stalks were tested by using the two instruments. The comparison showed that the lodging resistance of different corn stalks was proportional to the bending strength and elastic modulus.关键词
玉米/秸秆/抗倒伏/力学特性/弯曲强度/弹性模量Key words
Corn/Stalk/Lodging resistance/Mechnical parameters/Bending strength/Elastic modulus分类
农业科技引用本文复制引用
陈艳军,吴科斌,张俊雄,农克俭,李建生,李伟..玉米秸秆力学参数与抗倒伏性能关系研究[J].农业机械学报,2011,42(6):89-92,4.基金项目
国家玉米产业技术体系资助项目(nycytx-02) （nycytx-02）
