Paul Jasa - Extension Engineer

Paul Jasa

staff

Ext Engineer II Biological Systems Engineering University of Nebraska–Lincoln

Work Chase Hall (CHA) 202

Lincoln NE 68583-0726

Work 402-472-6715 On campus, dial 2-6715

pjasa1@unl.edu

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Cover crop field — If you don’t grow something, Mother Nature will. The hairy vetch cover crop is suppressing weeds on the left compared to the no cover crop treatment on the right.

2023 Cover Crop and Soil Health Field Day

August 31, 2023

The Sept. 19 event will feature research updates on Rogers Memorial Farm's 43-year tillage study, cover crop selection and performance, and more.

Warm-season Species for Soil Health and Forage Purposes

July 27, 2023

Taking advantage of summer heat and abundant sunlight, warm-season cover crops can accumulate impressive amounts of biomass, cover bare ground quickly, suppress weeds, reduce erosion and improve soil health.

2022 Cover Crop and Soil Health Field Day

September 8, 2022

This year's field day will feature a new statewide study evaluating cover crop variety selection and performance, on-site examinations of soil from a long-term tillage study and more.

Why Should You Prepare and Use Crop Budgets?

December 4, 2019

The 2020 Crop Production Budgets for Nebraska are now available. They include 80 budgets for 15 crops, available in both PDF and customizable Excel formats.

Figure 1. After recent rains, water stands in the border of this Filmore County soybean field. While wet conditions across much of the state will complicate harvest, taking steps to avoid compaction can reduce the challenges for future crops. (Photo by Brandy VanDeWalle)

Avoiding Harvest Compaction in Wet Soils

October 10, 2019

With wet soils in many areas and heavy harvest equipment, compaction is likely to develop, affecting crop growth in coming seasons. Taking these 10 steps can help reduce compaction this harvest.

Figure 1. Cover crops planted after wheat harvest at the Daryl Obermeyer Farm east of Auburn in Nemaha County. On the left are oats plus turnips and radishes. On the right are turnips and radishes and cereal rye. The brassicas (turnips and radishes) out-compete the cereal rye in late summer. (Photo by Gary Lesoing)

Cover Crop Field Tour Sept. 17 in Nemaha County

September 4, 2019

A Cover Crop Field Tour of three sites in Nemaha County will look at how cover crops are being used and what the early yield and biomass data are showing. A soil pit at one site will also offer insights into longer-term soil health benefits.

Cover crop demonstration plots at the Rogers Memorial Farm — Cover crops help suppress weeds as shown here with a grain sorghum cover crop growing in wheat stubble on the left compared to no cover crop on the right. If you don’t grow something, Mother Nature will. The field day will show some of the benefits of using cover crops to control weeds, including marestail and Palmer amaranth.

Cover Crop Field Day Sept. 13 at UNL Rogers Memorial Farm

August 30, 2019

This tour will feature cover crop cocktails that serve specific functions as well as cover crops growing in wheat stubble, cover crop recovery after simulated grazing, and row crops growing in the residue from cover crops.

By replacing one solid closing wheel with a spiked one, closing the seed-vee becomes easier in a variety of conditions.

Avoiding Sidewall Compaction at Planting

April 19, 2019

Don't let this season's planting conditions get the better of your crop stand. Described here are four factors contributing to sidewall compaction and steps you can take to minimize the challenge.