Fertilizer

Nitrogen Testing Tool Increases Corn Profits

Wed, 15 May 2013 19:37:00 +0000

The latest fertility technology means that you can reassess your corn crop’s nitrogen needs every 24 hours, reducing nitrogen inputs and saving corn input expenses.

You can now assess your corn’s nitrogen (N) needs every 24 hours. The Adapt-N online computer model, from Cornell University, simulates the complex processes in a corn field: local precipitation and temperatures, soil type, soil organic matter and slope, previous crops, inputs, tillage, planting date, population, hybrids, rotation, type and date of starter and yield potential. Using high-resolution weather information (3x3-mile grids), the web model tailors site-specific N recommendations to your farm in almost real time.

How Much Nitrogen is in Your Corn Field?

Tue, 07 May 2013 18:50:00 +0000

Source: University of Illinois

Nitrogen loss is difficult to predict because it depends in many factors such as time of N application, type of N source, soil type and temperature and the amount of precipitation received. While it is difficult to know how much N is lost without a direct analysis of soil N, you can determine what to do about N applications this growing season.

Bullish corn story might be developing in the far east.

Thu, 25 Apr 2013 15:04:00 +0000

Keep the Chinese weather situation up on the radar screen..

Grain Market Viewpoint

Nitrogen Efficiency, Application Timing Increase Corn Yields

Mon, 22 Apr 2013 20:29:00 +0000

Today’s hybrids produce more corn yield per unit of nitrogen than older hybrids, according to a new Purdue study.

Modern hybrids absorb more than half of their final N content after flowering. In fact, they absorb 27% more total N from the soil after flowering than hybrids grown between 1950 and 1990, says a newly released Purdue study. Today’s hybrids absorb more grain-N during grain fill, as opposed to N being remobilized from plant leaves and stems. The higher amount and duration of N uptake contributed to better grain yields, even as actual grain N concentrations decline; hybrids are much more efficient. But as corn plants increase N use, they increase their uptake of other nutrients.

Nitrogen Key to Uptake of Phosphorus, Potassium, Sulfur in Corn

Tue, 16 Apr 2013 18:23:00 +0000

Source: Purdue University

A historical analysis of corn research shows that new hybrids are taking up more nitrogen than older plant varieties after the crucial flowering stage – a clue as to how plant scientists will need to adapt plants to increase yields.

Apply Manure to Get Best Benefit of Available Nitrogen for Corn

Tue, 09 Apr 2013 20:54:00 +0000

Source: Ohio State University

Applications of liquid manures have the potential to provide nitrogen (N) that can be counted toward meeting the needs of the corn crop and substituting for 28% or other fertilizer N sources. Research on the application of manure preplant or sidedress to corn has been ongoing in Ohio for several years.

Sample this Spring for Soil Nitrogen, Adjust Rates When Needed

Thu, 04 Apr 2013 18:52:00 +0000

By Emerson Nafziger, University of Illinois

The priority for spring sampling should be fields where corn in 2013 will follow corn (from which fall samples were taken) in 2012. We suggested last fall that any spring sampling done in order to adjust rates for the 2013 corn crop should best be done close to corn planting time, or at sidedress time.

Moist Soil Sample Provides Precision, Better Accuracy in Estimating Potassium

Wed, 27 Mar 2013 15:35:00 +0000

Test and Sidedress the Same Day | Rapid Field Moist Sample Analysis is Now Available and Paying Dividends

Ignored for decades, moist sample analysis saves money and boosts yields. Soil labs and scientists alike abandoned field moist soil sampling decades ago. Common until the 1980s, field moist soil sampling was replaced with a faster and easier "dry and grind" procedure.

Know Soil Nitrogen Levels Before Applying More Fertilizer

Mon, 25 Feb 2013 22:32:00 +0000

Source: Pioneer

Smart management can help growers get them bang for their buck on fertilizer.

When traveling, knowing how much fuel is in your gas tank versus how much is needed to get to your destination is important. Similarly, knowing how much nitrogen you start with in the soil and how much is needed to get to maximum yields is critical. Realizing these numbers will help you be more efficient with your corn nitrogen (N) fertilizer.

Post-Drought Agronomic Challenges: Herbicide Carryover, Weed Management, Soil Fertility

Tue, 12 Feb 2013 21:33:00 +0000

Source: Source: Answer Plot Advisor, WinField

As if last year's drought didn't cause enough problems in 2012, now there are some agronomic factors that could impact the 2013 crop if producers don't manage them appropriately. Those factors include potential herbicide carryover and heavy weed pressure in existing crop stands.