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| Did a small test on a phosphorous freeing product before I was going to use it in the field (don't want to name the product because my testing might be poor).
I calculated the volume of soil in a small corn plants root zone and then applied the correct amount of 9-18-9 starter and phosphorous freeing product to the soil and the amount of water equal to a 1/2 inch rain and mixed up in a plastic bag, let sit for a day and then sent to Midwest. Soil was from a bag of topsoil from garden center and water was distilled.
I had 4 samples I sent to Midwest -
1. Soil with only a simulated 1/2" amount of rain
2.Soil with 9-18-9 and 1/2" rain
3. Soil with phosphorous freeing product only in 1/2" rain.
4. Soil with phosphorous freeing product and 9-18-9 in 1/2" rain
Results-
The phosphorous freeing product did nothing. Has anybody else had any luck testing any phosphorous product to determine if it works? Or is my test screwed up. Thanks
Edited by Luke Beanwalker 3/23/2017 17:25
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