daryljurassic

Usually the recommendation is to side-feed your corn with a nitrogen fertilizer when it's about 8-10 inches tall (that reminds me that it's time to feed mine), and again one week after the tassels form. See the information below. A chart including corn is down toward the bottom of the page. Sprinkle in between the corn plants and water in. It recommends 1 lb. of ammonium nitrate per 100 feet of row, though I don't know how that translates to other fertilizers.

I'd apply it by hand, even shaken from a cup, rather than using a broadcaster. No need to get fertilizer on the plants, which could burn them.

Here is a link that might be useful: Nitrogen side-dressing

Miracle Grow is useless. If the lawn fertilizer you have is high in Nitrogen and has no weed killer that's good. I use 46% urea on mine.

Daryl, don't know how much corn you are talking about. As a general rule you need to fertilizer before or during planting or a few weeks thereafter. Farmers use soil samples to take the guess work out of it, but if you do not know then you can use a general mixture like 10-10-10.
Besides the phosphorus and potash help develop the root system. I've seen farmers broadcast when corn was even a foot high. If you only have a small section then I would suggest applying as a sidedressing and either plowing it under or using a hoe. The preferred method is to apply fertilizer before or during planting so as to get it down to where the roots can readily pick it up.

Soluble fertilizer you can just water in.

When my corn is getting to the point of breaking it down with the tractor then I apply nitrogen (ammonia nitrate 34%) as a side dressing and plow it in. It is soluble so you could water it in as well. Remember, corn is a member of the grass family and loves nitrogen and water.

Just my opinion and my way of doing it.

Good luck.

Shot

Fertilizing when planting is perhaps best. Side band it 2 inches from the row on each side and a bit deeper than the seed. Additional application of nitrogen later is usual.

Hey Anney and Shot,

I haven't been able to find ammonium nitrate since the good old days in the 1990s when I lived in Florida. Can you buy it retail where you live? I used to go to a hardware store and buy it in 25 lb bags.

Michael

Lawn fert is good, make sure it doesnt have any herbicide in it (weed n feed). I feed it at planting, when the plants are about 8-10" tall and again about 2ft tall. It has worked well for me. My G90 is over 8ft now.

Nick

Thx for the advice & link. I went ahead a got a bag of urea, 45-0-0. Looks like 50lbs should last a lifetime for me! Well maybe 40 years or so... at 1 lb per 100 ft row of corn... I had been using ammonium sulfate on my bananas & other tropicals for the last couple years and will now switch to the urea. On them, I only used 1 tablespoon per 2 gallon watering can every 10 days. Come to think of it, I used the ammonium sulfate(Espoma) on my first ever corn last year and it was real good. Hopefully the urea works as well(or better) as nobody seems to carry the ammonium sulfate in Cincinnati anyway.