Nutrient management

Nutrient management guidelines

Nutrient Management

The University of Minnesota Extension's website on nutrient management, including news, research, a crop calculator, and various resources describing nutrient management guidelines and best practices.

Nitrogen and tillage management for corn following alfalfa

In this article, results from 31 recent on-farm trials that evaluated various N rates and N application timings in first-year corn following alfalfa are discussed, along with information on the performance of different tillage systems for first-year corn. (4.5 MB PDF)
Non-harvested soybeans: can you expect an extra N credit?

With the recent flooding and late season hail, there may be questions on whether a credit can be taken from soybeans not harvested for the next year's crop. Crop News, 2010.
On-farm validation of alfalfa N credits to corn

Results of on-farm experiments meant to validate the University of Minnesota's N-credit guidelines, presented in Forage Quarterly, 2010. (282 KB PDF)

Providing proper N credit for legumes

Resources aimed to develop an understanding of rotation effects created by legumes, and the influence legumes have on N fertilizer management programs. 2008.
Nitrogen credit contribution by alfalfa to corn

Alfalfa is well known for enhancing yield of grass crops that follow it in rotation. Taking advantage of alfalfa's rotational benefits reduces fertilizer and pesticide costs and boosts yields. Crop News, 2005.

Manure management and air quality

The University of Minnesota's site for manure management and air quality, including resources on manure applications, pathogens, and manure management basics.
Dairy manure

The manure management site from the University of Minnesota's Dairy Extension, including rules and regulations, manure management plans, and other recommended resources.
Swine manure and odor management

Manure management plans, pocket guides, and other related resources presented by the University of Minnesota's Swine Extension.

Effects of swine manure applications on soil nutrient levels and phosphorus loss risk

Results from a southwest Minnesota monitoring project and the application of the Minnesota Phosphorus Index, with the objective to study the potential for nutrient build-up in soils with swine manure applications. 2007.
Corn yield for varying poultry litter rates

Results of a study that compared several rates of turkey litter to assess nitrogen needs of dry land corn in sandy soil. 1999. (1.6 MB PDF)