I wish I had read this before I planted my corn. I have 36" row spacing, seed spacing is 6". I could have gotten 1 more row with 30" row spacing. My problem this year is the trees grow taller every year my corn only gets about 7 hours of full sun. I should have planted my corn a month ago instead of waiting for warmer weather. My corn is a 65 day crop it will mature in late July when temperature is 100 degrees if I had planted a month ago my corn would have matured in 90 degree weather.
Corn will germinate at 50 degrees F. Frost will not damage corn. Corn is not damaged by cold temperatures down to 28 degrees F. Corn is self pollinating by the wind, it will not pollinate below 50 degrees F or above 112 degree F. Corn will not pollinate in very low humidity climate.
An ear of corn averages 800 kernels. A pound of corn consists of approximately 1,300 kernels. 100 bushels of corn produces approximately 7,280,000 kernels. Iowa, Illinois, Nebraska and Minnesota account for over 50 percent of the corn grown in the U.S. The "Corn Belt" includes the states of Iowa, Illinois, Nebraska, Minnesota, Indiana, Ohio, Wisconsin, South Dakota, Michigan, Missouri, Kansas and Kentucky. The USA produces 40% of the worlds corn. There are 92.3 millions acres of corn grown in the USA.
If you mix 1 lb of corn meal with 3 lbs of water, bring it to a boil then add 1 teaspoon of vinegar a chemical reaction takes place all the carbohydrates are converted to sugar in about 10 minutes.
Corn grows best in fertile soil, warm weather, full sun, high soil moisture, high nitrogen soil. The largest crop is produced when corn matures at 85 degrees F.
From planting to harvest takes 55 to 95 days, depending on the variety and, to some extent, the weather.
Recent research at Iowa State University has examined the effect of 15, 30 and 38 inch row spacing on corn grain yields. The results of these studies are summarized in Table 6. Narrowing rows to less than 30 inches showed very small and inconsistent results with the overall effect showing no yield benefit for row spacing less than 30".
Another study show row spacing of 32" produces the best yield, this is a different geographic location.
One test shows 20" rows out yielded 30" rows by 28.5 bushel of corn per acre. With a yield goal of 200 bushel per acre planting 33% more seed gives a yield of 228.5 bushel per acre.
Best Corn seed planting depth 2".
This data is from Tennessee this does not apply to northern states where they have cooler weather.
https://varietytrials.tennessee.edu/weig ... rsions.pdf