Submitted by author on Wed, 03/18/2020 - 15:23

Effective nodulation of legumes is important to maximise the amount of nitrogen fixed by the legume; however, lupins are not usually treated with inoculant due to the presence of native inoculant in the soil. It is unclear if this native inoculant is as effective as newer types of inoculant, and the objective of this project is to evaluate TagTeam on the nodulation and grain yield of lupin and chickpea on a sandplain soil. At this trial there was no yield benefit in applying an inoculant on lupin seed. Although there was a noticeable improvement in crop establishment and nodulation when doing so (from a 2.9 rating to a 3.9 nodulation rating), it did not translate to yield. It is possible that this is because the frequency of lupins grown in this environment has been high, and therefore enough numbers of rhizobia are present in the soil to achieve suitable nodulation. The dry finish to the season may have also influenced the final yield. 

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