Management of barley straw and stubble under rainfed conditions
1999
Kari, A. (Agricultural Res. Inst., Nicosia (Cyprus))
Two methods of managing barley straw and stubble, remaining on field surface after harvesting, and their effect on disease severity of foliar diseases and agronomic characters on the following barley crop were compared at two sites in four years. The methods used were either burning or burying barley straw and stubble. Management method had no effect on the degree of disease severity of the foliar diseases net blotch, scald and powdery mildew on the following barley crop. No differences were obtained between the cultivars used either in disease severity or agronomic characters. Differences among years in disease severity and green leaf area were mainly attributed to the amount of moisture and temperatures prevailing in each year and site. Differences in grain yield and 1000-grain weight were attributed to moisture stress of plants during the filling period, particularly in the 1996/97 season. The view that the disease development of barley foliar diseases is enhanced by the amount of the accumulated straw and stubble remaining on the field surface after harvesting, which is true in others environments, was not substantiated under the rainfed conditions of this trial. Little evidence was found to suggest that one of the two methods tested is better under rainfed conditions.
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