How much urea should I put on my corn?
50 pounds as urea plus 100 pounds as ESN prior to planting. 50 pounds as urea prior to planting and 100 pounds as urea as a sidedress when plants were 18 inches tall.
When should you apply urea to corn?
To minimize adhesion of dry products to the leaves, it is best to apply when the foliage is dry. Remember, urea is subject to volatilization if rain does not fall within three to four days after application.
How much urea do you add?
For most applications, use no more than 2 to 10 pounds urea per acre, or 1/2 to 2 1/2 pounds per 100 gallons of water. For every 1000 square feet of treatment area, this equals no more than 1/2 pound, or 4 ounces urea.
How do you fertilize urea with corn?
Urea or materials containing urea should, in general, be broadcast and immediately incorporated into the soil. If applying urea-based fertilizer in a band, separate it from the seed by at least 2 inches of soil. Under no circumstances should urea or urea-based fertilizer be seed-placed with corn.
How do I know if my corn needs nitrogen?
With the PSNT, for optimum N nutrition for corn, the soil nitrate-N level in the PSNT should be above 21 ppm when the corn is 12 inches tall or around the 6-leaf stage. If it is above this level, there is adequate N in the soil to meet the needs of the crop.
Does urea burn corn?
Granular urea broadcast in standing corn will cause some foliar burn when granules fall into the whorl. While it may appear unsightly, little yield decrease normally occurs if the fertilizer is applied prior to the 10-leaf stage.
Can you put too much nitrogen on corn?
Using more than the recommended amount of nitrogen-based fertilizers on corn is a waste of money and could pose environmental risks, two Purdue Extension agronomists say in an updated report. Nitrogen is the most expensive nutrient used in corn production. …
How often should I fertilize corn?
When corn is 12 inches tall it is a good idea to apply a sidedressing of fertilizer. This is especially important on light sandy soils. To sidedress, apply 8 ounces of 10-10-10 fertilizer to every 10 linear feet or row. For best results, work fertilizer into two with a light cultivation.
Does urea need to be watered in?
Often sold as granules you spread around your garden and yard to encourage color and plant growth, urea needs to be watered or tilled into the soil within two days to make sure the plants can access as much nitrogen as possible.
Will urea burn plants?
The urea cannot be used directly by plants but it is naturally converted into ammonia on contact with water in the soil. … However, if there is too much urea or ammonium in the soil it will draw water out of the roots and cause ‘fertilizer burn’, with the leaves shriveling and dying, often also killing the plant.
How much urea do you use per acre?
A surface application of 200 pounds of nitrogen per acre as urea (about 444 pounds of actual urea per acre) has been shown to increase surface soil pH from 6.5 to above 8.5 within the zone of application.