End guns have been on center pivots from almost the beginning and the merits of their use have been debated about as long. Some farmers would not have a pivot without an end gun and others would not have a pivot with one.
Every irrigator can make excellent irrigation scheduling decisions by getting the right information and analyzing the data. Today it is easier they ever to install equipment the will automatically record and help analyze the data before sending it to your computer or smartphone.
When it rains, and even when it pours and floods like it did in Nebraska in late 2018 and through much of 2019, the precipitation that hits the surface doesn’t always factor in to recharging the state’s vast and vital groundwater supply. So when does it most often happen?
Keeping a close eye on soil water content in individual fields can help optimize irrigation efficiency. This article explores how to use research-based trigger points for various soil types using soil water content-based sensors or soil matric potential-based sensors. Nebraska research has shown that having 25% more water than needed in the maize root-zone reduced grain yields as much as 15 bu/ac.
The Nebraska Environmental Trust has awarded a grant to construct a subsurface drip irrigation system that uses feedlot effluent to irrigate crop fields. The practice will be evaluated as a potential means to better manage the state's limited water resources, an ongoing research priority of the University of Nebraska.
Mark Rosegrant, research fellow emeritus at the International Food Policy Research Institute, will discuss managing water and agriculture for sustainable food security during the next Heuermann Lecture on April 30.