Research need from Focus Group: Determining the optimal bandwidth at a certain row spacing in different crops
non-chemical weed control
Plant production and horticulture
This is the problem:
This need for research has been identified in FG 32 on “Non-chemical weed management”. If you want to know more about it, check the final report of the Focus Group.
For narrow row crops, determining the optimal bandwidth at a certain row spacing in different crops both in terms of yield responses and weed suppression of intra-row weeds. At present, suppression from the crop seems to be the only option for minimising the insurgence of intra-row weeds. Recent studies have shown that widening the row (band sowing) can improve the suppression of intra-row weeds as compared with sowing in lines. The wider the row distance the more important it is to widen the intra-row space as well. In organically grown spring wheat, a 7 cm bandwidth gave 4 % greater yield at 25 cm row spacing than normal bandwidth (2 cm). At a 50 cm row distance in organically grown spring wheat and winter wheat, a 12 cm-wide band gave 6 % greater yield compared with normal 2 cm-wide rows and 50 cm inter-row spacing.