John Hay
student, faculty
- Exten Educator Biological Systems Engineering University of Nebraska–Lincoln
Work
402-472-0408
On campus, dial 2-0408
QR Code for John Hay
icon-academic-capEducation
- BS, University of Nebraska - Lincoln, 2001
- MS, Texas A&M University , 2003
icon-chat-userCourses
- ENSC 220, Introduction to Energy Systems, Spring 2022
icon-documentPublications and Other Intellectual Contributions
- Leaching loss of N03-N and dissolved P from manure and fertilizer during turfgrass establishment, Plant Soil
icon-bookmark-starAwards & Honors
- 2022 Nebraska Extension Team Award - Teaching and Learning , Nebraska Extension , 2022
Bioenergy Crops in CropWatch
YouTube Channel: CropWatch Bioenergy
Irrigation Meter Calculator
This app calculates the number of inches of water applied by irrigation over a given time. Begin by selecting the type of measurement unit used by your irrigation flow meter. The units are usually located just below the rolling numbers (like the odometer on your car).
Using SoyWater to Schedule Irrigations and Agronomic Practices - UNL CropWatch, July 12, 2013
July 12, 2013
SoyWater.unl.edu
SoyWater.unl.edu
Soybean Aphid Management Guidelines
July 12, 2013
Scouting Methods
There are two methods to scout and determine if an insecticide treatment is warranted: a conventional scouting method using the 250 aphid/plant economic threshold and a speed scouting method.
Control of Glyphosate-Resistant Volunteer Soybeans in Corn - UNL CropWatch, July 2, 2013
Figure 1. Volunteer soybean at first trifoliate leaf stage in a corn field near Mead. (Photo by Amit Jhala).