Former Harold W. Eberhard Distinguished Professor of Biological Systems Engineering, UNL
What Do We Know About Water Use of Weeds?
June 14, 2023
In an effort to estimate the cost of weeds to agriculture and the overall economics of weed management, researchers recently analyzed numerous scientific studies on the water use of 34 weed species found across the world.
Effect of Drought on Weeds: Results of Global Meta-analysis
June 13, 2023
Researchers examined more than 1,000 studies to compile a comprehensive report on weed germination, growth and seed production during periods of water stress.
Control of Velvetleaf with Post-emergence Herbicides in Popcorn
August 12, 2021
Results of a study evaluating the efficacy and crop safety of labeled post-emergence herbicides to control velvetleaf, a major agricultural weed in Nebraska that reduces yields in popcorn if not controlled.
Weed Control and Response of Yellow and White Popcorn Hybrids to Herbicides
September 25, 2019
Research-based information on weed control and response of eight commercially available popcorn hybrids to several herbicides labeled for popcorn in Nebraska.
Pre-emergence Herbicide Delays the Critical Time of Weed Removal in Nebraska Popcorn
September 9, 2019
Understanding the critical time of weed removal (CTWR) and how a pre-emergence herbicide application can shift it is helpful for designing the most efficient weed management program in popcorn.
Soil Water Content- and Soil Matric Potential-Based Irrigation Trigger Values for Different Soil Types
July 11, 2019
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.
Profit and Nitrogen Use Efficiency Gain Using Sensor-Guided Fertigation
January 9, 2019
A UNL study of sensor-based and model-informed fertigation treatments confirms that sensor fertigation treatments are consistently the most profitable and efficient methods of applying N compared to current best management practices (BMPs).
Consequences of Fall-Applied N
November 9, 2018
A fall nitrogen application has a relatively high loss potential and is considered the riskiest N management practice. Consider breaking tradition and splitting your N applications next year to coincide with when your corn most needs more N.