Posted by paul on June 08, 2020 at 07:12:41 from (66.60.223.229):
In Reply to: Re: Fertilize corn? posted by sourgum on June 08, 2020 at 06:45:00:
I don’t have a sweet corn chart, but this field corn at 75 bu yield might be close.
The far right numbers is what the plant would use to support both the green plant itself as well as the ear of corn.
Your ground has some of those things in it already.
Most farmers test the ground to know about what is available in the ground, and then add enough of each thing to cover the number on the left.
Typically there isn’t enough N in the ground to grow good corn to its full potential. So that is the one you probably want to add more of.
If your ground is in good shape you might only need a little P and K added to keep up with the removal of the grain itself. The part the green plant uses, do you mulch the stalks back into the ground or add manure to your garden, or do you haul away all the old stalks and remove those nutrients as well?
If you don’t want complicated, just add a handful of 15-15-15 and call it good, but over time that kind of gets your soil out of whack, as you end up short on some and over supplying other of the three main nutrients..........
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