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| This is actually interesting.
"The most difficult soils for wild Trichoderma are those that are extremely well drained. They are presumably more difficult for strain T-22 as well, but even on these, the populations were high enough to be effective. An analysis of soil characteristics that are associated with good colonization showed that roots growing in soils high in calcium are better colonized"
I doubt you are too well drained unless you are on sand but that would explain the better results with compaction. Which may also indicate not enough seed-soil contact or pressure from the closers.
It is an interesting article although kind of old from 1999.
https://ipm.cahnr.uconn.edu/trichoderma-for-control-of-soil-pathogen...
Edited by madflower 6/28/2024 21:38
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soybean pre emerge damage
