Crop Production Clinic Proceedings 2019

Routes of nitrogen loss in the soil

Nitrogen Inhibitors for Improved Fertilizer Use Efficiency

January 14, 2019
This article looks at how some nitrogen inhibitors temporarily reduce populations of Nitrosomonas and Nitrobacter bacteria, the soil bacteria responsible for converting ammonium to nitrite and nitrite to nitrate as well as what to look for in product claims.

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Trial studying efficacy of products on Palmer amaranth

Palmer Amaranth Control in Dry Bean

January 14, 2019
Residual herbicides applied at or before planting are critically important to controlling emerged Palmer amaranth in dry bean. Research at the Panhandle REC assessed the efficacy of PRE and pre-plant incorporated (PPI) residual herbicide programs.

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Bacterial leaf streak in wheat

Wheat Disease Update: Bacterial Streak and Black Chaff

January 10, 2019
In this article from the Proceedings of the 2019 Crop Production Clinics the author reviews disease impacts in wheat, particularly bacterial streak, also known as black chaff.

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Figure 1. Cover crop trials were conducted in 2017-2018 at the UNL Havelock Research Farm near Lincoln to discover the impact of several practices on management of winter- and summer-annual weeds.
Figure 1. Cover crop trials were conducted in 2017-2018 at the UNL Havelock Research Farm near Lincoln to discover the impact of several practices on management of winter- and summer-annual weeds.

Using Cover Crops as a Weed Management Tool for Managing Herbicide-Resistant Weeds

January 9, 2019
Cover crop research trials were conducted in 2017-2018 at the UNL Havelock Research Farm near Lincoln to discover the impact of soybean maturity group, planting date, termination date, and herbicide use on on management of winter- and summer-annual weeds.

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What’s New in Plant Pathology

January 9, 2019
This article, from the Proceedings of the 2019 Crop Production Clinics, addresses new and updated product labels for disease management, a report from the Plant and Pest Diagnostic Clinic, changes in the Department of Plant Pathology, and the initial US finding of Fusarium boothii on wheat in Nebraska.

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Comparison of aboveground biomass amounts and total N when using hairy vetch or cereal rye as cover crops.

Cover Crops Benefit Nebraska Agroecosystems In Many Ways

January 9, 2019

Across Nebraska, the use of cover crops is increasing. Most commonly, winter cover crops are planted during the fallow period between corn or soybean harvest and the next crop. However, other windows for cover cropping exist in Nebraska.

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Chart of nitro use efficiency and partial profits

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).

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Soybean field where previous cover crop provided adequate weed control.
Soybean field where previous cover crop provided adequate weed control.

How Much Cover Crop Growth Is Needed For Weed Control?

January 9, 2019
How well do cover crops control weeds and can they offset herbicide costs in corn-soybean cropping systems across the Corn Belt? That's the focus of a multi-state meta-analysis of 15 cover crop research projects.

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