The new North Dakota Corn Nitrogen Calculator was posted on my web site in late April. Now, the companion Corn Fertility circular is available on my web site and on the NDSU Extension web pages.
Read about Late N application options in spring wheat/durum and corn.
Many spring wheat fields are approaching heading. The weather has been wet and cool, and the prospect for high yield, if the fields escape fusarium head blight, is good.
Several tools exist for preventing or reducing iron deficiency chlorosis (IDC) in soybeans. The most important is the selection of a variety with a high level of resistance to this disorder.
On my way to and from Devils Lake today, nearly every field of soybean had symptoms of iron deficiency chlorosis (IDC). Therefore, a short review is in order.
I have stated at many meetings that the high clay soils in the Red River Valley are high enough in organic matter and have a high enough sulfatic water table that sulfur fertilization is not needed. However...
The row crops in our region look as poor now as in 2011, our last perpetually wet spring.
With prevented planting (PP) more common throughout North Dakota, using cover crops to prepare the land for next year is a desirable option.
There are some growers looking out over wet fields of no-till and wondering if it would have dried had they tilled the fields in the fall?
There is nothing fun about a wet spring. Growers get equipment stuck, planters have to go around areas that still have water, field plans change on the go.
There is always a first time. This is my 39th spring as a fertilizer company agronomist/manager and in my present position, and this is the first call I have received regarding injury from a high rate of urea applied preplant in corn.
As Dr. Goos pointed out in last week’s Crop and Pest Report, yellowing can be the result of several nutrients. One way to direct you in the right path to correction is to look closely at individual plants.
In a wet spring, wheat plants may become yellow. This is usually due to a nitrogen deficiency. Usually...but not always.
With the struggle to farm between rain drops and tight fertilizer supplies, many growers throughout North Dakota are planting and then fertilizing later.
I fertilized for corn, but I am going to soybean. If high N rates were applied earlier, but now soybean is going to be grown, the N applied will be taken up by the soybean, but do not expect a yield increase from its application.
In the initial post of the North Dakota Corn Nitrogen Calculator released a few weeks ago, http://www.ndsu.edu/pubweb/soils/corn/, there were few issues when it was accessed using Internet Explorer.
Salinity is rearing its ugly head this spring as a result of a relatively high water table from all the rain last fall, limited flushing of salts as a result of low snow cover/melting and high evaporation from fall tillage and lack of soil residue since most of it blew across fields this winter.
After 5 years of field N rate trials, with funding from the North Dakota Corn Council, the International Plant Nutrition Institute and Pioneer Hi-Bred, Int., the N recommendations for corn in North Dakota have been revised and the North Dakota Corn Nitrogen Calculator has been posted on my website http://www.ndsu.edu/pubweb/soils/corn/
Not that many years ago, the standard method for introducing a product was research and development. Now, most of the products introduced as soil or fertilizer amendments are development and maybe research. And if the research does not support the product use, just ignore it.
Here are my recommendations for application of anhydrous ammonia and urea in North Dakota in the fall. No fall anhydrous ammonia or urea on sandy loam soils or coarser or soil that floods regularly in the spring. Do not apply any anhydrous ammonia or urea until the calendar hits October.