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Flat Rock, Michigan

If mycorrhizae is present in (added to) your seed starting mix, is there a need to add additional when seedlings are planted outdoors? It seems like the colony would be established and would continue to develop along with the seedling. Also, in garden areas already innoculated with myc. from previous years, is it necessary to continue supplementation each spring?
With so many products out there, I am confused about how much I should be buying for 4 to 6 AG plants.
Thanks,
Ted

2/24/2006 1:24:05 PM

Ray, North Dakota

We treat our farmers soybean seed with innoculent similar to this, but they are always present in the soil. You are just adding to it, and freeing nutrients in the soil with more population IMO of course.

2/24/2006 1:53:05 PM

On top of Brush Mountain, Pa.

What should be clear never really is. There are many different kinds of mycorrhizae to begin with. Would you believe that no one really knows which one goes with which plant and so as many types as possible are usually added to the soil to make sure you get the "right" one. Do they remain active or winter over in the soil? You would think so since they form spores at the end of each season. But, we do things that kill them off such as roto-tilling maybe several times a year. I add some mycorrhizae each season because I don't really know what to do and if there are some hanging around from last year isn't more better? I'd really like to hear from an expert. From what I have read though I don't think anyone really knows the answer. Buy some and put it on. It can't hurt and it is only money. We are talking pumpkins here.

2/24/2006 2:52:37 PM

Warwood

I recommend M-Roots 40# bag over about 2000 sq. ft. spread evenly then tilled in. OR The Biostimulant-trichoderma-endomychorizza sold by Joel Holland. They have both served me well as I did experiment plants that weren't even close to the plants using such products. I would use either product myself. Both are endomychorriza wiht three types of each. Don

2/24/2006 6:54:41 PM

Flat Rock, Michigan

Thanks for the feedback on the Mroots product- that is one I have considered trying. I don't think there is much question that the products work, but I am amazed at the amount that some growers use per plant.
I think I will try a few tests this spring (just seedlings, seedlings and planting hill, seedlings and hills and internodes, etc.) and see if there is any difference.
If any of you have experience with any of the other products out there, I would appreciate the feedback and will post mine later this year.
Ted

2/24/2006 10:15:07 PM