Plough harrows yields promising results

There has been a great deal written about the benefits of deep ripping. The technique has gained significant interest in recent years as it has proven to be hugely effective in reducing compaction from heavy farm machinery and aiding in crop root development.

One of the drawbacks, however, has been that the technique leaves furrows in the soil following deep ripping. This uneven surface means either farmers sow with reduced accuracy, or deep ripping efforts have to be followed by additional seed bed preparation, which costs time and effort and leads to unnecessary additional compaction.

Davimac Group have been developing a modular set of harrows to help resolve this problem. The latest design was tested recently at a farm outside Molong NSW. An Agrowplow AP71 was outfitted with two different test units - a set of harrows and a scraper unit - in order to observe the action of the harrows on freshly ripped soil.

The AP71 featured 450mm hydraulic shanks with the new tungsten rock teeth and a trailing Flexiroller. The test units were fixed to a single side in order to provide clear side-by-side comparisons. The test proved to be a resounding success, with both units having a marked effect on the quality of the seed bed when used in combination with a Flexiroller.

The results of the test are now being assessed by our design team, who will look to further optimise the design before the units are made available. The final units will be compatible with Agrowplow units from the AP51 and up, as well as ploughs from other manufacturers.