A conversation this winter, with another farmer, revolved around 'growing a crop' or 'controlling blackgrass'. It was agreed that it was quite difficult to try and do both on the sort of soil types that blackgrass thrives in. A dry September can lead to poor stale seedbed germination, a wet October can then lead to slugs, colder soil temperatures, compaction and difficult drilling conditions.
So on walking across one of our worst blackgrass fields, it was clear we had a sprayer malfunction. (A dodgy solenoid in the blind section behind the sprayer). However, it did highlight how important a 'pre-crop emergence' spray of glyphosate can be. Whilst not all the blackgrass was controlled where we had sprayed, these pictures do rather tell a story about where glyphosate was not applied.
This field was mole ploughed, a stale seedbed formed with a light disc and press (about 5cm in depth) and drilled on the 10th October 2014. It was sprayed with 1.5l/ha of glyphosate 360 on the 25th October.
|Blackgrass rules in the tramline|
|The wheat has a better chance to get away|