The Institute for Application Techniques in Plant Protection publishes a range of test reports as well as guidelines for testing agricultural equipment. The lists of documents are continuously updated.
However, most of them are in German language and the English documents listed below are only a fraction. If you change to our German website (Deutsch), you will find the complete survey.
Reports of crop protection equipment tested and approved by the JKI are announced as a "descriptive list" in the German Federal Gazette (in German: Bundesanzeiger). The descriptive list comprises several sections, and the tests according to ENTAM technical instructions being one of them. ENTAM is short for European Network for Testing Agricultural Machinery. See the test reports of all testing agencies on the ENTAM website or filter the search results for JKI as testing partner: http://www.entam.net/tests.php