NEWS
Production Blog
Dan Davidson DTN Contributing Agronomist
Fri Dec 3, 2010 11:14 AM CST

The single biggest cause of hypoxia in the Gulf is nitrate coming out the tile lines and entering surface watersheds. And the single biggest contributor to that discharge is fall applied ammonia.

When ammonia is applied in the fall, even when soil temperatures drop below 50 F or NServe is used, will still convert to nitrate at a slow pace over the winter. Nitrification continues, albeit slowly until the soil freezes. And slowly nitrate begins to accumulate in the soil over the winter. Some of that nitrate will be residual from the previous season, some mineralized from organic matter and some ...

Quick View
  • Dr. Dan Talks Agronomy Can you trim inputs while growing soybeans in 2015? Here's a look at what you can and can't cut.
  • Fescue Workaround Fescue can be a challenge, but Butch Foster said he and his dad, Bob, put 200 to 250 pounds on ca...
  • Ask the Taxman by Andy Biebl Readers pose tax questions on how to justify repairs, handle capital gains on a residence and com...
  • Senior Partners - 1 Think how rural communities could rejuvenate if farmland rents stayed local rather than flowing t...
  • Sample With Precision Dan Davidson looks at how to measure the horsepower of your soil with the Solvita soil respiratio...
  • USDA Defines Actively Engaged Under the 2014 farm bill, family operations are exempted from proposed changes in actively engage...
  • New Paths Max payments forecast in areas of hardest-hit 2014 corn yields.
  • She's Got It All Alicia Mielke is a farm girl originally from Harrington, Wash., who continues to lend a hand to h...
  • Ask the Vet Would a bull with an undescended testicle or one that was a hard pull at birth be worthy of breed...
Related News Stories
Making Money With Manure - 2
Newsom on the Market
EPA Rootworm Proposal
Sample With Precision
Soil Health - 4
Soil Health - 3
Drift Danger
Soil Health - 2
Soil Health - 1
Sustainable Partners