Weed seed destruction on a combine harvester including transferring grain from the grain loss sensor to the destructor

Abstract

A combine harvester separates crop into straw and chaff and weed seeds using a sieve, a chopping rotor with a spreading device and at least one weed seed devitalization section. The components can be operated in a first mode where both the first material and said second material are directed to the chopper and a second mode the first material is directed to the chopper inlet and the second material is directed to the WSD. A grain loss section is provided at the sieve including grain loss sensors for collecting unseparated grain falling through openings in a rear section of the sieve to provide an indication of grain loss, and the grain entering the grain loss section is transferred during the first mode from the grain loss section to the WSD.