Diseases of wheat and barley in conservation cropping systems of the semiarid Pacific Northwest

摘要: Diseases continue to be important constraints in wheat and barley conservation cropping systems the semiarid Pacific Northwest. Several diseases are more damaging highthan low-residue seedbeds, crops planted during early autumn reduce soil erosion winter, especially unirrigated winter rotation with summer fallow low rainfall zones (250–400 mm). Changes region have made disease management maintenance of yield goals farm profitability challenging because often is complex expensive tillage than inversion tillage. Practices being developed meet this challenge reviewed for that particularly trouble some farming