Al-Arfaj, Abdullatif Hamad2022-05-182022-05-1819981729https://drepo.sdl.edu.sa/handle/20.500.14154/3598I have included this message on a number of field trials conducted in the seasons of 93 / 1994 and 94/1995 and 95/1996 and 96/1997 in the experimental farm of the project HIDA. The main objective of this study is to determine the effect of crop rotation and nitrogen on growth and yield of wheat and grain to the content of protein and depletion of soil water.enThesis