ﺑﺮرﺳﯽ ﺗﺎﺛﯿﺮ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﮐﻮد ﻧﯿﺘﺮوژﻧﻪ و زمان وقوع ورس ﺑﺮ ﻣﯿﺰان ﺧﺴﺎرت ﻣﺤﺼﻮل ﺑﺮﻧﺞ

Evaluation of different nitrogen levels and time of lodging on rice yield damages and provide diagnosis indices for separation of coercive lodging and administrative lodging