Corn and Soybean Digest
Home > Corn

Corn

RSS

Nitrogen Efficiency, Application Timing Increase Corn Yields

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.

Read and Discuss

  • May 20, 2013
    blog

    Soybeans are down but they are not out just yet!

    South American supplies will NOT be able to help overall shortages in both US corn and soybeans......More
  • May 15, 2013
    Article

    Nitrogen Testing Tool Increases Corn Profits

    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....More
  • May 14, 2013
    Article

    May 13 Crop Progress: Corn Nearly 1/3 Planted, Soybean Planting Lagging

    Farmers across corn-producing states made decent progress in the last week, going from 12% planted on May 5 to 28% of the overall corn crop planted by May 12. This is still well behind the five-year average of 65% planted....More
  • May 14, 2013
    Article

    6 Tips for Postemergence Application of Pre-Emergence Corn Herbicides

    One of the problems with a wet start to the season when planting gets compressed into short periods is the lack of time to apply preemergence herbicides and 28% before corn emerges. Most pre-emergence corn herbicides can be applied to emerged corn, and some of them have enough foliar activity to control small, emerged weeds without the need to add postemergence (post) herbicides....More
  • May 10, 2013
    blog

    May 2013 WASDE Breakdown and Perspective

    Breakdown of the USDA numbers......More
  • May 9, 2013
    blog

    Why Corn Could Turn Bullish

    I'm starting to sharpen my bull horns in corn!...More
  • May 7, 2013
    Article
    Corn and Soybean Digest

    May 6, 2013 Crop Progress Report: Corn 12% Planted, Soybean Planting Started

    Corn planting progressed a bit last week, moving up 7 points from the week before to 12% planted overall. The five-year average is 47% planted, and last year the overall corn planting progress was 69% at this time. North Carolina and Texas have the most corn in the ground at 89% and 70% completed so far, and slightly behind the five-year averages for each state....More
  • May 3, 2013
    Article

    Plant Corn Based on Field Conditions, Not Calendar Date

    Last year, farmers didn't have nearly enough rain for their wilted, drought-ravaged crops. So far this year, they have too much of it – so much that they can't get into their fields to work them for corn planting....More
  • May 2, 2013
    blog

    Should You Sell Corn?

    Corn bulls were happy to see ethanol production at 857,000 barrels per day (largest since last July), and were also happy to see strong blender demand pushing ethanol stocks lower as well.  I should point out there were ZERO ethanol imports reported last week....More
  • May 2, 2013
    Article

    Control Weeds Before Planting Corn, Soybeans

    Wet soil conditions have caused delays in planting and in efforts to control existing weed vegetation. Much of the existing weed growth is comprised of winter annual species, such as common chickweed, henbit, purple deadnettle, etc., but emergence of several summer annual species also has begun....More
More
Continuing Education Courses
New Course
Current Status of Herbicide Resistance in Weeds.

Accredited for 2 hours/CCA Soil & Water credits. The 2,000 member...

Agronomic Principles and Efficient Chemigation and Fertigation Using Center Pivot/Linear Sprinkler Systems
This online CE course details sound mechanical irrigation design and management practices to...
Spray Drift Management
Keeping crop protection chemicals on the crop for which they are intended has been a...
View All Courses
CornandSoybeanDigest.com
Penton Agriculture Market
Copyright © 2013 Penton Media, Inc