NEWS
Soil Test Tweaks
Dan Davidson DTN Contributing Agronomist
Wed Aug 14, 2013 03:02 PM CDT

Fall is a good time to pull soil samples. Beyond getting the sample analyzed by a reputable laboratory, growers also need to consider what kind of test is being run -- particularly when it comes to potassium.

Traditionally, soil laboratories dry soil samples, grind them, scoop out a volumetric sample (instead of weighing) and use an extracting method to analyze for nutrients. That has been the tried-and-true method on which soil calibrations and fertilizer recommendations have been based for years.

However, as we learned last year, a soil analysis during a drought period will underestimate the amount of potassium available. ...

Quick View
  • Crop Tech Corner In this week's Crop Tech Corner, researchers produce orange-colored corn with sight-saving capabi...
  • Strong Immunity Wins Two weeks after calving, cows lose body condition. But if she is short on nutrients, too, that dr...
  • Russ' Vintage Iron DTN staff reporter Russ Quinn takes a look at farm life nearly a century ago.
  • Klinefelter: By the Numbers Farm lenders should halt their petty rivalry and focus on agriculture's best interest: Our nation...
  • CWA Rule Pressure The Pennsylvania Department of Environmental Protection has asked the federal EPA to withdraw the...
  • GOP Picks Conaway as House Ag Chairman The House Republican Steering Committee on Tuesday selected Rep. Michael Conaway, R-Texas, as the...
  • Head Start A Pennsylvania teen has two years of a farm-to-fork business under his belt and is looking to exp...
  • Woodbury: Farm Family Business One of the world's wealthiest families measures success not in dollars but in authenticity.
  • Ask the Vet A warning about bull breeding soundness.
Related News Stories
All Roughed Up
Dr. Dan Talks Agronomy
Dodging Weeds
Down the Drain
Soil Health Values Explained