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What’s the safest way to manage pre-em herbicides at seeding?

 

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Peter
Peter
4 years ago

Looking at updating sowing rig in near future ,looking to go with a Tyne with the depth being set by the press wheel.What would the minimum row spacing and what point system could you suggest that wouldn’t throw soil back into the next row?

Peter Newman
Peter Newman
4 years ago
Reply to  Peter

Hi Peter, air hoe drill type seeders, with a gang of presswheels mounted across the back, seem to be able to achieve the narrowest row spacing because the seeding points make a mess of the furrows then the presswheels fix it up. The other important aspect of soil throw is the point shape. Some points such as the stiletto allow the soil to flow over them where others throw soil out. The bent leg tyne throws almost no soil but is still in the developmental stage. Soil type is the other big variable as some soils throw further than others… Read more »

Sam Kleeman
Sam Kleeman
4 years ago
Reply to  Peter

That’s right – no rule of thumb for this one with so many variables at play, the same system can behave differently on opposing soil types or even on the same soil type but at contrasting moisture contents. Big issue associated with narrowing row spacing (RS) for drill/tyne seeder is ability to handle trash & reduce excessive furrow ridging. Parallelogram systems with vertical shank can overcome these issues to some degree, however there is a limit, the closer the RS the greater the likely hood of throwing soil into the adjacent row. If the grower is looking to improve crop… Read more »

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