By Thomas J Getts, Mark E Lundy, Sarah E Light, Nicholas E Clark, Giuliano Carneiro Galdi, Michelle M Leinfelder-Miles
This is the third post in a blog series focused on improving nitrogen (N) use efficiency in California small grains. This post discusses two hand-held devices that indicate plant N levels in small grains to help optimize fertilizer decisions.
This is our second in a series of blog posts on improving nitrogen (N) use efficiency in California small grains. This post focuses on the use of N-rich reference zones to assess in-season N status and make management decisions based on crop need.
By Michelle M Leinfelder-Miles, Thomas J Getts, Giuliano Carneiro Galdi, Mark E Lundy, Nicholas E Clark, Sarah E Light
Measuring soil nitrogen (N) prior to fertilizing can improve N fertilizer management. The soil nitrate quick test is a simple and low-cost test. It provides a ballpark estimate of the soil nitrate-N concentration in the rootzone. Nitrate is a highly plant-available form of nitrogen.