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johnspir

Corn meal, too much N?

11 years ago

My lawn company recently applied a fertilizer treatment, couple weeks ago - need to find the info on what they put down. In the meantime, I was thinking of using corn meal to control a fungus outbreak on parts of the lawn.


I've read some posts that said that corn meal won't harm the lawn, but I wonder if I apply 20#/1000sqft, if that won't be too much nitrogen given the recent fertilizer treatment. Am I correct in that guess, or can I put down corn meal w/o a problem?

Comments (5)

  • 11 years ago

    Drop the corn meal, you're golden.

    It does depend on the company, but many do a poor job of fertilizing to begin with. In that instance, the extra N from the corn will be a welcome addition.

    Even if they were normal to a little high, nitrogen in corn is at a very low percentage. You're getting less than one third of a pound of very, very slow nitrogen from that application.

    Plus their nitrogen was fast stuff. By the time the corn kicks in, the grass is going to want that nitrogen--it takes about three weeks to even start releasing, then continues at a pretty constant (and slow) rate for some weeks before slowly subsiding back to zero.

  • 11 years ago

    Unless I missed that day in Chemistry, Corn is made up of sugars, amino acids, proteins, carbohydrates, fats and other thing like this. Some of these compounds have Nitrogen in the molecule, but it is not readily available for absorption and use by the grass.

    There is no free nitrogen, or nitrogen from easily broken down compounds ie simple amines, and inorganic nitrogen containing compounds.

    Point being corn meal has no greater fertilizer properties than and other material made up of sugars, amino acids, Proteins, Carbohydrates, fats. such as leaves, grass cuttings and the like. When these compounds break down the reaction do not release nitrogen in normal degradation processes.

    Corn meal makes a good feed for the things that live in the soil. but it is not a fertilizer

  • 11 years ago

    The situation isn't chemistry-simple. There isn't jack diddly in terms of free N in the corn (or soy or alfalfa that we use for that matter).

    What there is, is protein (6.25% nitrogen by weight). Which the micros happily break down and integrate, releasing when they die, plus trading to the roots in exchange for sugars. Slow? Yep, that's what we want, and we make it up in volume so that a small percentage is still enough nitrogen at any one time.

    The processing is limited by soil moisture and temperature. Which is a Good Thing as the grass growth is also limited by soil moisture and temperature.

    In this particular instance, Johnspir is using it as a minor fungal treatment more than a nitrogen source. Which is good as corn is a lousy nitrogen source, requiring 60 pounds per thousand square feet to supply 1 pound of nitrogen (equivalent). That also makes it a very good soil conditioner and excellent source of organics since you can pour it on without having it stink when it decays anywhere near as badly as some other items like soybean meal.

  • 11 years ago
    last modified: 11 years ago

    "The situation isn't chemistry-simple."

    Chemistry is the study of the elements and molecules that make up everything in our universe, the earth, the sun, and every star system that makes up the universe. Every thing from the smallest germ and blood cell to the largest dinosaur.

    There are many branches of chemistry, analytical chemistry, inorganic chemistry, organic chemistry, food chemistry, and the chemistry of living organism. DNA is a chemical. Carbohydrates, proteins, fats, and sugars are chemicals.


    Do you realize one of the chemicals that kills the most people in the world is water. It usually kills by ingestion.

  • 11 years ago

    kr whatever your point is, you're straying off topic. If you'd like to start a new topic we'd be happy to discuss the pros and cons of soil chemistry and biology with you. You might want to go back and review your biology classes and bring that to the discussion, because that's where we're going to start.