Cover Crops

Figure 1. Seasonal ecology of wheat stem maggot (Allen 1933) overlaid on 2017 field issues. Arrows indicate likely source of infestation started with adult movement in the spring.
Figure 1. Seasonal ecology of wheat stem maggot (Allen 1933) overlaid on 2017 field issues. Arrows indicate likely source of infestation started with adult movement in the spring.

Wheat Stem Maggot Adult Monitoring: A Pest of Cover Crop-to-Corn Transitions

April 25, 2018
This article looks at wheat stem maggots in cover crops-to-corn transitions, including their biology, risk for damage to early season corn, and what to look for this spring.

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Cover crop field with mixed-species plantings
Later season field of cover crops in southeastern Nebraska. (Photo by Paul Jasa)

Timing of Cover Crop Termination and Related Factors

April 20, 2018
Should the cold spring delay cover crop termination? Growers walk a fine line between growing cover crops long enough to get the biomass they want without reducing yield in the following grain crop. This discussion from an agronomist, entomologist and weed scientist looks at various factors to consider.

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Cereal rye cover crop

Q&A on Grazing Cereal Rye after an Anhydrous Application

April 19, 2018
This week a CropWatch reader asked: Can you safely graze cover crop rye this spring after anhydrous has been applied? That depends on several factors, write three extension specialists in agronomy and beef production.

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Insects in Cover Crop Systems

April 6, 2018
If you missed the March 14 Nebraska Extension webinar on "Insects in Cover Crop Systems" with Justin McMechan, it's now available online.

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Manure application into cereal rye cover crop in the fall

Research Updates

April 4, 2018
Briefs on university crop research, this week featuring flame weeding research in northeast Nebraska and the effects of liquid manure injection into a winter rye cover crop as tested in on-farm trials in Minnesota.

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Soybean seedlings in no-till field
Figure 1. With almost 100% residue cover, this soil surface is protected from raindrop impact, greatly reducing erosion and crusting. The residue will also reduce evaporation by keeping the sun and wind off the soil surface. (Photos by Paul Jasa)

Building Resilient Soil Systems using Residue, No-till, and Cover Crops

March 29, 2018
Crop residue, cover crops, and no-till farming practices can provide a positive buffering effect to changes in climate and extreme weather events. Together they can help keep more water and soil on-farm and contribute to improved soil health.

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Figure 1. Rye cover crop planted in small sections of field for erosion control. Center photo shows a section of ground where cover crop did not establish with normally developing plants. Damaged corn plants were primarily restricted to areas where cover crop was present.
Figure 1. Rye cover crop planted in small sections of field for erosion control. Center photo shows a section of ground where cover crop did not establish with normally developing plants. Damaged corn plants were primarily restricted to areas where cover crop was present.

Wheat Stem Maggot in Corn: Plan on Scouting Your Cover Crop Fields This Spring

March 8, 2018
Wheat stem maggots were an issue for some eastern and southern Nebraska farmers planting corn directly into a growing cover crop, leading to questions about how to best manage this scenario in 2018. Learn why entomologists don't recommend adding an insecticide to the herbicide when terminating the cover crop.

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Figure 1. Grazing cover crops planted after corn harvest can be a win-win situation for both crop and livestock producers. An April 4 Nebraska Extension field day will explore some of the challenges and opportunities and showcase recent university research on implementing the system in eastern Nebraska.
Figure 1. Grazing cover crops planted after corn harvest can be a win-win situation for both crop and livestock producers. An April 4 Nebraska Extension field day will explore some of the challenges and opportunities and showcase recent university research on implementing the system in eastern Nebraska.

April 4 Conference to Focus on Capturing Value of Cover Crops as Forages

March 7, 2018
A Nebraska Extension conference and field day, “Capturing Value in Cropping Systems using Cattle,” will offer a unique learning and networking opportunity for cattle and crop producers in eastern Nebraska.

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