William Kranz
volunteer, emeriti
- Emeritus Professor Biological Systems Engineering University of Nebraska–Lincoln
Work
57905 866 Rd
Concord
NE
68728-2828
US
Work
402-584-3857
On campus, dial 7-3857
Faculty Bio
Program Website: Water.unl.edu
Economics of Variable Frequency Drives for Irrigation Pumps
January 8, 2018
An article from the Proceedings of the 2018 Nebraska Extension Crop Production Clinics summarizes research to evaluate variable frequency drives (VFDs) on center pivots and the most effective placement of the pressure sensor.
Pivot Pressure Regulator Testing to be Offered at HHD
August 25, 2016
Nebraska Extension is offering free testing of center pivot irrigation pressure regulators at the IANR building all three days of Husker Harvest Days September 13-15 in Grand Island.
Technologies for Irrigation Management Field Day Sept. 8
August 24, 2016
Nebraska Extension and MidPlains Ag are collaborating on a Technologies for Irrigation Management Field Day near Elgin on Thursday, Sept. 8.
Economics of Variable Frequency Drives for Irrigation Pumps
June 23, 2016
Dilshad Brar, a graduate student in the UNL Biological Systems Engineering Department, looked at 1000 center pivot installations in 10 Nebraska counties to determine if placing a variable frequency drive (VFD) on the system would be economical. He also looked at the best location for the VFD pressure sensor. Brar breaks it down to four common scenarios, outlining when it pays and when it doesn't.
Using Chemigation for In-Season N Application
May 4, 2016
Heavy spring rains may have leached nitrogen from some soils. In-season chemigation applications can provide nitrogen when the plant most needs it and reduce the potential for leaching. To use chemigation, users must meet two major requirements: they must be certified to use chemigation and pollution prevention equipment must be installed at each injection location and inspected and approved by the local NRD.