CAJ | 학술논문

为探索优质稻佳辐占抗倒力与施氮量的关联性，设置不同施氮量试验。结果明确，施氮量9.2kg/667m2时，茎秆矮壮产量高；超量施氮时，各节间的外径粗度和秆壁厚度变小，弯曲力矩加大而抗折力降低，倒伏指数升高，成熟前遇风雨发生倒伏；在茎秆中，倒4、倒3节间是最易折倒的部位，超量施氮时，该节间的倒伏指数>200。
위탐색우질도가복점항도력여시담량적관련성，설치불동시담량시험。결과명학，시담량9.2kg/667m2시，경간왜장산량고；초량시담시，각절간적외경조도화간벽후도변소，만곡력구가대이항절력강저，도복지수승고，성숙전우풍우발생도복；재경간중，도4、도3절간시최역절도적부위，초량시담시，해절간적도복지수>200。
In order to explore the relationship between lodging-resistance and nitrogen rate of high quality rice Jiafuzhan, setting up the test of different nitrogen rate, the results showed that the culm was Stocky and High yield with nitrogen rate of 9.2 kg/667m2, When excess nitrogen fertilizer,Outside diameter roughness and Culm wall thickness was smaller with each internode, the bending moment increased, anti-fracture reduced, and lodging index elevated, In case of storm occurs lodging before maturity, In the stems, pour 4 and pour 3 Internode was the most easily folded down position, When excess nitrogen fertilizer,the lodging index of the internode was more than 200.