looking through different articles and such it appears they put it in at various depths. here is one such article. It doesn't tell you the actual depths but if you look at the implements and the trenches you can see some are rather deep. 8-10" at least. But they do discuss the fear of manure in the tiles. http://www.farmwest.com/book/export/html/957
And here is the example of two ways to veiw and present things,.
"fear" or education to prevent.
I would like to meet one farmer that will knowingly apply fertilizer with the cost involved to have it be unusable by the plants in the field.
More and more producers are investing hundreds of thousands of dollars in variable rate equipment that uses GPS and soil tests to automatically vary the rates seeding and applying fert. on the go because it pays on enough acres.


