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| I asked about the fungicide, because of the trichoderma, but also I'm not seeing very fine root hairs on either sample from mycorrhizal fungus. Which also potentially means other 'help' isn't in the soil.
Warmer soil would certainly help and residue can affect soil soil temps. Leaving residue on the field is good for soil health, but it also needs the microbes. Usually fields are compacted, which means oxygen can't get to the lower layers preventing the growth of the aerobic microbes. Bacillus velezensis is another one that can add 10% germination. it and the trichoderma are aerobic.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838022/
Im not saying you are wrong about soil temps. Just that you may need to add or replace microbes are either no longer there or not in high enough numbers. It takes a few years to get soil health back .
The cheapest way is to add them is to do a compost wash, where you literally wash them out of good aerobic compost then spray them on the field. And they are alive. They can't handle much sun exposure. | |
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soybean pre emerge damage
