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11007. Moore, K.J. and R.J. Cook. 1984. Increased take-all of wheat with direct drilling in the Pacific Northwest.. Phytopathology 74:1044-1049.
Take-all occurred more frequently or more severely on consecutive wheat crops seeded no-till into undisturbed stubble compared to plots with moldboard or disk plowing. This held true at three different climatic locations, for two seasons, and for winter and spring wheat. Differences in soil temperature and moisture could not account for the effect, nor did additional fertilization. Disease with no-till apparently was increased because of more infested debris and because the inoculum source was ideally positioned for infection of the crop.