Doug McEvers

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since Dec 06, 2025
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Recent posts by Doug McEvers

JP,

https://soilhealthlab.cals.cornell.edu/

This where I test. This is a soil health test as opposed to the typical soil test, CEC, Base Saturation and the like. Really pleased with the depth of information that comes with each soil test, the soil health scorecard makes so much sense for knowing where you are and what is the next best move towards soil improvement. Penetrometer readings are part of the sampling protocol. Soil tests are just a snapshot in time, could be much different depending on the time of year taken, especially pH. It is good to know your base saturation to assess your inherent soil quality. I like plant tissue testing for corroboration as to what the soil has available. An organic grower friend has said his soil organic matter (SOM) can vary greatly from year to year depending on the crops planted. Soil health can be fleeting if not given TLC.
8 hours ago
Having recently joined Permies I have been made aware of many new things. Gratifying to hear so many are doing the right for themselves and Mother Earth. My efforts are on a farm scale but soil health is the same everywhere. I have been using the word "resilience" as part of our effort to become less dependent on most everything. We are in the Tallgrass Prairie region of the country so I look to the prairie as a guide for maximizing our natural resources. On the prairie, the small plants grow first, having their days in the sun. Next comes the mid height plants before the tallgrasses take most of the sunlight. The last wave of the prairie is the taller species, mainly grasses but also the sunflowers, blazing star and some shorter species that do not require full sun like bottle gentian. A resilient landscape would do well to mimic the grassland, always something blooming and growing. Maximizing the seasonal availability of growing temperatures and adequate sunlight. On the farm we must get away from the monocrop and do much more with the growing season. This year we will feed the soil and soil life first, fingers crossed for an early spring.

To add to this, we are just learning how water comes and goes on our farm. An in-depth study of our hydrology is in order. We have a fair amount of subirrigation here, gravity taking water from points higher and moving it to points lower. The great thing about improving soil and adding organic matter is it will dry better in times of moisture excess but hold moisture better in dry periods. I like these odds. We can start to plan our crop rotation with topsoil and subsoil moisture availability in mind.
1 day ago
Nancy, This is really good information, what about oat rust? Oat rust is a problem in the US so new oat varieties are always being developed to stay ahead of it. European buckthorn is thought to be a host plant for oat crown rust. Your selection method might be the answer to rust resistant oats in previously released varieties. Now I have one more thing to keep an eye on !

Oats are a fabulous cover crop and soil builder but planted here mid-season in high humidity they will develop rust. Early seedings are not generally affected.
3 days ago
I sent in a soybean crop residue sample (with many weeds) for nutrient analysis and it looks like weeds take up nutrients much like crops. The only thing that stood out was the very high iron content, about 550 ppm vs my normal 100 ppm. Soybeans do take up a lot of iron but not that much. I have to wonder if some of the weed crop is also quite a scavenger of iron. Had lamb's quarters and redroot pigweed as the main weed species. Another thing came to mind and that is I cut up the residue with a pruner, could that impart some iron into the test sample? What about the residue going through a combine and all of the steel contact there including the straw chopper.

My favorite weed is one that does not compete greatly with my intended crop. Don't mind a few weeds, a sign of good soil health.
3 days ago
Take a good look at the native vegetation in the area, before settlement nature decided for us what plants and where. I have read that you will be hard pressed to do better on a net energy basis than the native vegetation. Too many inputs used in all of the annual reseeding, some perennial and native vegetation will save the day. Also, drought tolerance is part of the equation, in my part of the world, deep rooted prairie plants survived the 1930's.

This is not to say the paddocks must be entirely native, some additional species may benefit the entire growing season. In Australia they intercrop wheat into their warm season pastures. The wheat grows when the grasses are dormant, the wheat is harvested making way for the native grass. Keep a living root for as long as possible for maximum soil improvement. A mix of cool season and warm season grasses is a must for season long grazing.
1 week ago
Nynke makes a good point about vertical agriculture, when all of the energy if figured in, what is the point? We have plenty of land for agriculture, we should look at making the land more resilient and productive. Rebuilding the soil is the new opportunity.
1 week ago
This is Joseph's area, but I will say this. I have been turning my overripe WI 55 tomatoes back into the garden in the fall. Just started doing this last year but the volunteer tomatoes, although late were super hardy. Someone else here said, the volunteers far exceed transplants for vigor. By saving seed you should be able to develop a hardy variety specific to your growing area. Don't buy into the hype that you must plant the latest and greatest, there is a reason the heirlooms are still a favorite.

I may experiment a bit this spring with something I learned from an experienced organic farmer. He will lay a plate of glass in his farm field to get a couple day look ahead as when to blind cultivate. The glass helps warm that area, the weeds and roots show up sooner than the rest of the field. I have 6 single pane tempered glass from sliding doors in storage for about 35 years with the idea I would use them someday. I am thinking about laying some of them over my hoped-for volunteer tomato area to speed the emergence. I will leave an air space so it will be a ground level greenhouse as I see it. The one thing that I will do differently is to replant the volunteers at a deeper depth. This makes for easier watering and then I can bury the plant up to the first true leaves for a better root system. I like to dig a hole where I am going to plant and mix the garden soil with compost or the like. This allows for better root growth as our soil can get quite hard with frequent hand watering.
1 week ago
Thank you, Dr. Redhawk,

I am new to Permies so I am happy to find this treasure trove on soil. Kelp is used for people, livestock and soil health. For those not near the sea, dried kelp would provide a little bit of all Earth's elements. Have not used kelp but did use liquid fish in our first year of soil rebuilding. I am a disciple of the Charles Walters, Acres USA movement.
2 weeks ago
Hail to the Lamb's Quarter. This plant growing well on our farm told me that my fertility consultant needed to go. His soil test (sample by me) said I was woefully short of phosphorus and many other elements, but a plant tissue test and a new soil testing lab said we are 100% on phosphorus. In the book, Eco-farm, says land growing Cocklebur and Lamb's Quarter is a good working soil with adequate phosphorus.  In 2025 we had a lot of rain and a lot of Lamb's Quarter along with a host of other weeds mixed in with the intended crop of soybeans. Last fall I collected crop and weed residue from a 100 square foot area and will send a sample of this for a fertility test. What fertility elements are in this residue and in what amounts? This is part of our fertility account going forward and must be considered when planning this year's growing season. Will post the results when I get them. It is said abundant phosphorus can complex zinc, I am curious if my crop residue test will show much zinc.

In further praise of Lamb's Quarter, the root system is unbelievable. If there is a better soil building weed, please tell me about it. I pulled some of the LQ last summer in our fields and could not believe the taproot and especially the lateral branching roots. I would say some of the lateral roots went out 12 to maybe 16", a mass of quite thick roots going in all directions. For us here trying to improve our organic matter level this type of underground biomass is truly a gift. Weeds are our friends !
2 weeks ago