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  • News
  • Publications
  • Noble News and Views
  • 2002
  • January

Understanding Phosphorus Behavior in Soils

Phosphorus is an essential element for plant growth. If soil test phosphorus levels are low, we must supply additional fertilizer phosphorus to successfully achieve high crop yields.
  • News
  • Publications
  • Noble News and Views
  • 2016
  • December

Consultant shares best times to apply phosphorus, potassium

Sometimes, a rancher takes a soil sample, sends it to a laboratory and the recommendation calls for phosphorus (P) and potassium (K). The rancher knows nitrogen should be applied near the time of...
  • News
  • Publications
  • Noble News and Views
  • 2015
  • September

Soil test values can vary across years

Following these steps should help you develop a better nutrient management program through use of soil testing.
  • News
  • Publications
  • Noble News and Views
  • 2014
  • November

Lime cost affects the economics of nitrogen use

Farmers have used significant quantities of nitrogen on their cool-season forages. This practice has been shown to acidify the soils over time. We conducted an economic study to determine the effect of considering the cost of lime on the current recommendations about the optimal level of nitrogen.

  • News
  • Publications
  • Noble News and Views
  • 2013
  • December

'Law of the Minimum' prioritizes action

Justus von Liebig's Law of the Minimum is an agronomic theory that states yield is proportional to the amount of the most limiting nutrient - whichever nutrient it may be.
  • News
  • Publications
  • Noble News and Views
  • 2017
  • November

Questions to Ask When Choosing Crop Land

Consider terrain, soil type and fertility, water, weed and brush encroachment, and forage resources before buying land with the goal of crop or hay production.