By Randy Pepin, University of Minnesota Extension Educator
Phosphorus balance is the amount of actual phosphorus imported into a farm contained in sources such as feed, fertilizer, animals, and bedding less the phosphorus contained in exported milk, animals, feed, and manure. If the imports of phosphorus remain higher than the exports of phosphorus for a period of time, the usual consequence is an elevated level of soil phosphorus in the fields.
When making decisions regarding which corn genetics to plant for silage or managing the inclusion of corn silage from various growing environments into dairy or beef diets, it is important to understand the natural variation in corn silage quality independent of hybrid genetics.
By Jeff Coulter, University of Minnesota Extension Corn Agronomist
These trials were conducted across southeastern, central, and west-central Minnesota to provide unbiased and replicated information on the performance of numerous silage hybrids for growers and their advisors.
There has been increased interest over the last few years in maximizing total-tract digestibility of starch from corn fed to dairy cows. This interest was primarily driven by the high price of corn over the last few years. Even with recent sharp decreases in corn prices, dairy producers and nutritionists still see value in improving total-tract starch digestibility as a tool to improve feed efficiency and potentially increase milk yield.