Collaborative project: Development and field test of a planter for sustainable reduction of the risk of the ecosystem and the user through dress powder - Sub-project 1 | FISA - Forschungsinformationssystem Agrar und Ernährung

Collaborative project: Development and field test of a planter for sustainable reduction of the risk of the ecosystem and the user through dress powder - Sub-project 1

Project

Project code: 2815406510
Contract period: 01.10.2014 - 30.09.2017
Budget: 358,796 Euro
Purpose of research: Experimental development

Within the scope of the project, sources of seed dressing dust and drift were studied on a pneumatic seed drill with compressed air conveying system. First, the current drift reduction of a market-ready machine was determined according to the methods of the Julius Kuehn Institute. Based on this, studies on dust generation and dust release were carried out. The results show that even with professionally dressed seed dressing dust abrasion can still occur in the seed during the transport processes to the drilling machine and therefor is already present when filling into the seed drill. Seed dressing dust can also be generated within the drilling machine. A part of the dressing dust can be released into the environment during sowing via leakage points in the pneumatic conveying system. However, the main part of the dressing dust is ejected through the sowing coulters close to the ground due to the design. In order to reduce the release into the environment, the coulter geometry of this device was adapted. With a coulter cover it was achieved that ejected dust is deflected with the escaping conveying air and deposited close to the ground. Furthermore, a concept for the exhaust of dressing dust during seed tank filling was developed and tested. The test results show that this can reduce the user contamination with seed dressing dust. Overall, the results show various possible approaches to reduce the release of dust in this type of device.

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