30 



NON IRRIGATED WHEAT and BARLEY BY CROPPING PRACTICE 



WINTER WHEAT 



SUMMERFALLOW 



CONTINUOUSLY CROPPED 



Year 



1975. 

 1976 . 

 1977. 

 1978. 

 1979. 



1980. 

 1981 . 

 1982. 

 1983. 

 1984. 



HARD SPRING WHEAT 



SUMMERFALLOW 



CONTINUOUSLY CROPPED 



Year 



1975. 

 1976. 

 1977. 

 1978. 

 1979. 



1980. 

 1981 . 

 1982. 

 1983. 

 1984. 



DURUM WHEAT 



SUMMERFALLOW 



CONTINUOUSLY CROPPED 



Year 



1975. 

 1976. 

 1977. 

 1978. 

 1979. 



1980. 

 1981 . 

 1982. 

 1983. 

 1984. 



SUMMERFALLOW 



CONTINUOUSLY CROPPED 



Year 



1975. 

 1976. 

 1977 . 

 1978. 

 1979. 



1980. 

 1981 . 

 1982. 

 1983. 

 1984. 



