Soil Stratification Study Update: How the Drought is Causing Drastic Changes
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- Опубліковано 28 чер 2023
- An update on Calmer's Soil Stratification Study. Each plot has seen growth, but the plot that had fertilizer spread and then incorporated into the soil is seeing a significant amount of growth despite little rain. There is now about a 40 inch difference between the plots.
#onfarmresearch #calmercornheads #notill #striptill #soilhealth
Lots of great information ! This sure has been a strange growing year for me . We went from drought to 3 days of flooding rain back to drought . Most years we get plenty of timely rains . I'm thankful this year that my soil holds a lot of moisture . I was still able to put on some nice ears of corn planting on 60 inch rows with a cover crop between the rows. I grow O.P. corn that I have been breeding for a fun hobby just to save seed and feed the chickens . I'm always doing some kind of experiments with corn lol . Thanks for sharing !
Saw about the same thing in one of my corn fields this year. Had a wheat field I tried to moldboard last summer after the crop came off but the ground was so dry and hard I couldn’t get the plow to do a satisfying job so I quit after only doing about a 40 foot wide strip. Fall ran short and never got around to finishing up moldboarding it so I just chisel plowed the rest. Fast forward to this summer. Got the field planted and there was enough moisture in the top 2 inches to get everything sprouted but the rain shut off for 6 weeks after that. The corn planted on the chiseled parts of the field all stayed green but was a little paler in color and started to become uneven in growth stages as soil texture changed across the field. The corn on the moldboarded strip stayed deep dark green, came up even and stayed even and gained about 2 full growth stages and 12 inches of height or more over the chisel plowed ground. Completely counter intuitive to what I figured would happen in extreme drought conditions.
Thanks for taking the time to share great information with the us. We did a 0-6 sample on a field plowed it 8" deep the sample before plowing was all vh after plowing you would never guess we were in the same county was so low!
Very interesting! I talked with you briefly at Commodity Classic. We started farming in 2010, been strip tilling about 10” deep since 2011 and use starter in a 2x2. You will be impressed with strip till hopefully. My neighbor and I talked tonight about regenerative ag but can’t figure out how to cut commercial fertilizer, you’re proving correct placement is key, thanks for sharing this with us!
very interesting ther is a lot to learn
watching frome Mexico, saludos .
For posterity, it would be cool to see the ear leaf tissue test results at r1. Of course depressed from normal, but seeing if P and K uptake compared to the various plots. We get long dry spots here.
Marion, hope you got some of that rain that came through today
I noticed some Boron Deficiency symptoms on some of your crop. Might be worth getting some tissue tests and seeing where they are at. I know it's hard because of the lack of rain, but this may help set you up for next year
Would cover crops deplete the subsoil nutrients and deposit them on the surface?
If you are spreading commercial P&K they are treated with acid and they are water soluble. They will move with water to some degree. Meaning if they are service applied and you get some heavy rains and a lot of runoff you are removing a lot of your potassium in phosphorus dollars right down the road ditch. Also your infiltration rate and percolation ability of the soil is going to dictate how them nutrients can move.
My question would be then what is your infiltration rate what is your soil profile look like how many worms per square foot do you have what are your plfa numbers what about a CO2 burst to measure soil life, what does basic soil structure look like?
From a soil health approach I find this stratification a lot of malarkey
I would think once the soluble P&K is dispersed into the soil water solution the chemical equilibrium would determine its movement.
That is what I learned while getting a soil science degree.
@@robertreznik9330 Maybe? The whole premise that we need to go buy phosphorus and potassium based upon a crop removal rate is a fallacy to begin with.