I have no clue what I'm doing, help!

Asked May 31, 2020, 6:08 PM EDT

I'm putting in 2 deer food plots. I'm not a farmer and have no clue how to improve the soil. I have a soil sample report, but don't know how much Phosphorus to add to bring the levels up to optimum level.Will adding Phosphorus bring the PH down? Or should I use something else? Also, I could use some help in regards to killing Giant Rag weed. I saw on the MSU Weed page its its very difficult. I have attached a image of the soil report. One plot is 1.25 acres and the other is .25. Any advise would be greatly appreciated. thank you.

Shiawassee County Michigan

1 Response

There should also be a recommendation for what to add as a part of the report you received and there is a fertilizer calculator on the website to help you make that calculation. Find it here under Tools: https://homesoiltest.msu.edu/

No, phosphorus added will not change soil pH at all. There are several ways to accomplish the change but a 1.2 lowering is substantial and it will take time. Once it is achieved, if achieved, amendments will likely have to be made at regular intervals in succeeding years to hold it at the desired level, because it will try to revert back to it's original composition. You will find considerable detail at this link:
https://hortnews.extension.iastate.edu/1994/4-6-1994/ph.html

Giant ragweed control will also be a serious challenge, especially if you have a lot of it.. Read more here: https://www.canr.msu.edu/news/challenges_and_options_for_giant_ragweed_management

You're about to grab a snortin' bull by the horns.

Good luck!