Nutrient Management

Commercial alfalfa harvest.

Use of NPK liquids in managing irrigated alfalfa cropping systems

November 5, 2020

A trailer spreads liquid manure. Photo by Will Parson/Chesapeake Bay Program.

What are the barriers and benefits of manure use in cropping systems?

November 3, 2020

Sulfur deficiency in corn. Source: IPNI Crop Nutrient Deficiency Image Collection.

Sulfur 4R management and the changing landscape of fertility

November 2, 2020

Photo by Brad Bernhard.

When to use a single or split application of nitrogen fertilizer in corn

September 8, 2020

Source: Design Pics Inc /Alamy Stock Photo.

Which recommendation tools are best for achieving the economically optimal nitrogen rate?

September 8, 2020

Source: Joseph L. Murphy/Iowa Soybean Association.

Examining environmental sustainability metrics—Nitrogen balance

August 29, 2020

Source: Adobe Stock/Monopoly919.

Data management and variability: Precision agriculture considerations for 4R management planning

June 30, 2020

lead image

Copper 4R management—Deficiency or toxicity?

April 30, 2020

Figure 1, Open in figure viewer Pigment contribution of iron minerals and other soil constituents. Source: D.E. Beaudette, USDA-NRCS; Schwertmann, 1993.

Iron availability and management considerations: A 4R approach

March 11, 2020

On-farm trials were conducted to compare pre-plant vs. post-plant (V2–V4) urea application with and without nitrification inhibitor addition on corn yield for the 2015–2017 growing seasons in the Red River Valley of North Dakota and Minnesota.

Corn response to nitrogen application timing and nitrification inhibitor addition

March 6, 2020

Looking for a job? A career? Job advice?