25.09.2017
Note comments on timing of drilling and associated cultivations, and the benefits of shallow tillage during a long-term fallow in severe cases. Avoid disturbing weed seeds when drilling. Note comments on previous cultivations depths in the cultivation principles section. Employ the following measures to achieve this:
NOTE: In high levels of residues avoid hair-pinning (especially by multiple disc drills) by using a leading (deeper) disc, side placement of seed relative to the drill slot, or leading residue manager components to clear loose residues away from the seeding zone. Also, preferably leave a higher stubble height to reduce levels of cut residues on the surface being taken into the seeding zone by the opener action.
NOTE: When establishing with minimal disturbance, offset the low levels of mineralisation by zone placement of N with the seed and where appropriate P plus other needed trace elements. Zone fertiliser placement also reduces fertiliser availability to any germinating weed seeds.
NOTE: Drill sufficiently high rates of following crops to compete effectively, following crops should be sufficiently diverse and competitive for best overall control.