View Single Post
  #5  
Old 07-09-2013, 11:32 PM
White Gardens's Avatar
White Gardens White Gardens is online now
LawnSite Fanatic
 
Join Date: May 2008
Location: Bloomington IL
Posts: 6,645
The Cation exchange in a soil test is also a factor in the availability of phosphorus being able to be absorbed by and local plants.

In Illinois, Commercial applicators are banned from applying any phosphorus unless a soil sample shows the soil to be deficient. Then an applicator is legal to apply.

Even if you apply a 12-12-12 fertilizer, only a fraction of the phosphorus will be available for plants to uptake.

If only 25% of the P is available, the other 75% then creates P loading in the environment. If it's a synthetic source, then everyone wants to put a stop to it.

If you want results, just apply natural Urea, along with iron and call it a day.


.........
__________________
White Gardens On Facebook.......WG Thread......Greencare For Troops......... mywhitegardens.com(under construction)

2005- Completion of University of Illinois Master Gardner's Program.
Reply With Quote
 
Page generated in 0.03236 seconds with 7 queries