Weeds in spring barley and results of weed limiting
Svarta, A.(Latvia Univ. of Agriculture, Skriveri (Latvia). Skriveri Research Centre)E-mail:[email protected] | Vigovskis, J.(Latvia Univ. of Agriculture, Skriveri (Latvia). Skriveri Research Centre)
Field trials were carried out on organic farming fields at the Skriveri Research Centre of the Latvia University of Agriculture (LLU). The influence of previous plants (red clover, bare fallow, winter rye for green manure, winter rye), use of stable manure (60 t haE-1 or without) and harrowing (without harrowing, before first leaf emergence, at the stage of tillering, before first leaf emergence and at the stage of tillering) on the yield and weediness of spring barley 'Sencis' were tested. Data show that previous plants and stable manure influenced barley grain yields. Harrowing increased the yields of barley only after winter rye for green manure and using stable manure, but the time of harrowing had no influence on the yield of barley. The highest weed infestation in barley was obtained after red clover. Use of stable manure increased the number of annual weeds.
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