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pro vyhledávání: '"M.Bredesen Hagemo"'
Publikováno v:
Crop Protection. 22:185-200
In four field experiments lasting from autumn 1993 to 2000, perennial weeds and overwintering weed species increased with reduced tillage compared to ploughing in autumn or spring. Abundant species were Cirsium arvense, Elymus repens, Matricaria perf