Forage Maturity Across Ohio #2

As the spring continues to progress so do our forages. The past week has resulted in a jump in alfalfa height and the estimated %NDF for fields around the state. It is a similar case for predominately grass fields as they beginning to lose quality and head out. To get the most out of a forage crop it is important to assess the forage quality to drive harvest decisions.

An easy method used to estimate timely alfalfa quality is Predictive Equations for Alfalfa Quality (PEAQ). The PEAQ method uses the tallest and the most mature alfalfa stems in a pure stand to determine %NDF. For example, if the tallest alfalfa stem in the sampling area is 31 inches and the most mature alfalfa stem observed is in the bud stage, the %NDF estimation is 40.1. The protocol for the PEAQ method can be found here as well as a video explanation here.

The following table indicates the maturity, height, and estimated %NDF of alfalfa fields from counties across the state for the week of May 7^th to May 13^th.