13, 2005: A ten year study of organic weed management
has found simple agronomic and mechanical methods effective
in keeping weed levels tolerable.
In the cereal fields at their pilot farm in Kishantos,
Hungary, researchers needed only a single pass of a
weed harrow to break up weed cycles. The maize and sunflowers
needed additional hoeing to break up particularly troublesome
weeds, such as Cirsium arvense, Ambrosia artemisiifolia,
Datura stramonium and Sorghum halepense. Mechanical
methods were found ineffective on the peas.
After ten years under organic management fields showed
weed levels similar to neighboring conventional fields.
Reference: Fejos, Z., Arnold, C. and Németh,
I. (2003) Gyomfel vételezések a Kishantosi
Ökológiai Mintagazdaság területén.
Növényvédelem 39(1) 25-32.