Rodrigo Werle - Cropping Systems Specialist

Rodrigo Werle

(faculty)
Work
WCREC 402 W State Farm Rd North Platte NE 69101-7751
US
Work 308-696-6712 On-campus 7-6712

Faculty Bio
CW Welcome: New WCREC Cropping Systems Specialist
Twitter: @UNLCroppingSyst

Field pea

Yellow Field Peas Fare Well After Recent Lows May 4, 2017

Most yellow field pea being grown in western Nebraska were at early vegetative stages (4th to 7th node or 1-5 leaf stages) during last week’s cold snap, but extensive damage is not expected due to the pea’s level of frost tolerance.Field pea tolerance to frost during early stages of vegetative growth is partially due to the “hypogeal” germination nature of the crop. For plant species with hypogeal germination (e.g., field pea, lentil, chickpea), shoot germination occurs belowground.

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Field with giant ragweed at early treatment stage

Considerations for Managing Herbicide-Resistant Weeds in Soybeans: Spring Burndown April 28, 2017

One of the challenges with spring burndown application is timing. Wet and windy conditions can delay spraying and under these conditions weeds can grow significantly in a few days. Waiting until planting to spray troublesome weeds such as marestail may be too late to achieve adequate control. In addition, waiting until soybean planting limits the available herbicide options since there are relatively few labeled effective burndown chemicals for spraying at this time. The following section identifies key treatment aspects to consider for several resistant varieties in Nebraska.

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Cereal rye cover crop
Figure 1. No-till cereal rye cover crop planted on October 21, 2016 after corn harvest in North Platte. Cereal rye was drilled at 60 lb per acre on 7.5-inch row spacing. Photo taken April 10, 2017.

Terminating a Cereal Rye Cover Crop – Things to Consider April 13, 2017

Fall-planted cereal rye is increasingly used as a cover crop in corn and soybean cropping systems in Nebraska. The authors address control of cereal rye through herbicide and mechanical measures and include a USDA NRCS map of recommended termination deadlines.

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Photo comparison of 2 flelds with and without residual herbicide
Figure 1. The benefit of a residual herbicide can be clearly seen in these photos of fields with and without residual six weeks after planting. (Photos by Rodrigo Werle)

Keys to Managing Herbicide Resistance in Soybeans April 6, 2017

As you begin developing your weed management plan for 2017, here are six key management practices and five key timings to improve control of herbicide-resistant weeds this year.

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Field pea

Field Pea Seeding Rates, Seeding Depth, and Inoculant March 13, 2017

Grain-type field peas are a cool season grain crop grown as an alternative for no-till summer fallow in a semiarid cereal-based cropping systems such as wheat-corn-fallow and/or wheat-fallow. They are typically planted in mid-March and harvested late-July. This article reports on research conducted on seeding practices and offers recommendations for producers on the economically optimal seeding rate, seeding depth, and inoculant to grow field peas in western Nebraska.

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field pea comparison
Figure 1. Comparison of water use of two systems -- summer fallow and field peas -- between March 27 and July 20. (Photos by Stranhinja Stepanovic)

Field Pea Production: Rotational Costs and Benefits March 10, 2017

Research findings show benefits in soil nutrient cycling, water infiltration, and microbial activity from replacing fallow with grain-type field peas in a wheat-fallow rotation in western Nebraska.

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kochia seedlings
kochia seedlings

Q&A: When is the Best Time for Kochia Control? February 23, 2017

Wondering how best to manage the flush of winter annuals that came up during the recent warm spell? Are they likely to survive a return to winter conditions? This Q&A addresses these and related questions on pre-season weed management.

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Soybean field in Brazil
One of the soybean fields Nebraska Extension Weed Management Specialist Rodrigo Werle visited during a recent trip to Brazil.

A Quick Look at Soybean Production In Southeast Brazil February 8, 2017

This winter Rodrigo Werle, Nebraska Extension Cropping Systems Specialist, visited several progressive soybean growers in Brazil. See what three major practices these growers prioritize.

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