Mid and late season nitrogen application at the base of the corn plant can help growers squeeze as much potential as possible out of each unit of nitrogen.
In areas with high rainfall and humidity, disease pressure has begun to show up in some fields, especially corn-after-corn fields.
With many crop models predicting a summertime switch from an El Niño to a La Niña weather cycle, some areas may receive ample moisture while other areas may find themselves wanting for water. As growers anticipate potential changes in moisture patterns, it is beneficial to anticipate how those changes can affect the crop and what might be done proactively to adapt.
Did you have fields with wet holes and bare spots in 2015?
If so, those spots are probably showing up again this year – in the form of corn with stunted, purple or striping in the leaves.
As many cornfields transition away from the seedling stage they might start to show uneven growth patterns and become very erratic in appearance.
With planting wrapping up in most areas, the focus shifts to protecting yield.
The saying, “you can’t save your way to prosperity,” may be true in many instances, but is it possible to save money by spending less on nitrogen while increasing revenue through higher yields?
The idea of reducing nitrogen inputs while increasing yield is a delicate balance and certainly not a practice that will work in every situation. However, there may be opportunities for some growers to reduce nitrogen inputs while also increasing yields, or at least maintaining yield levels.
In areas across the country that are experiencing delayed planting due to weather conditions, growers whose normal practice includes applying anhydrous pre-plant likely won’t want to wait too long to get into the field. The question then becomes how soon can corn be planted after applying anhydrous pre-plant without causing injury?
When anhydrous is applied, it forms into a band about 5-6” in diameter. If there is a lot of moisture, the band could be slightly smaller, but in drier, coarse-textured soil the band could also be larger.
Today’s growers try to walk the fine line between producing large crops as efficiently as possible while working hard to maintain environmentally friendly practices. A term you hear tossed around quite a bit today is NUE, which stands for Nitrogen Use Efficiency. You often hear numbers like .8#/bu or 1.1#/bu associated with the concept – meaning .8 pounds of nitrogen produced 1 bushel of corn.