Category Archives: Fertility & Soil

Fertility Guidelines for Hemp in Wisconsin

Carrie Laboski, Professor & Extension Soil Fertility/Nutrient Management Specialist No research has been conducted on the nutritional needs of hemp grown in Wisconsin in 75 years. In order to develop nutrient application guidelines for hemp, available peer reviewed literature as … Continue reading

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Are fall applications of N to winter wheat beneficial?

Carrie Laboski, Professor and Extension Soil Fertility/Nutrient Management Specialist, UW-Madison The short answer is maybe. Research in 2014 through 2016 demonstrated that N application at green-up generally resulted in the greatest economic return compared to application at Zadok’s growth stage 30 … Continue reading

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It’s rained again, what should I do about nitrogen?

Carrie Laboski, Professor and Extension Soil Fertility/Nutrient Management Specialist, UW-Madison With continued precipitation and water lying on fields in many areas, growers are becoming concerned about nitrogen loss. This article will explain how to determine if N loss from excessive rainfall … Continue reading

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Wisconsin Hosts the 2017 North American Manure Expo: August 22 & 23

If you are interested in the latest equipment and technology for professional manure management, plan to attend the 2017 North American Manure Expo on August 22 and 23, 2017. Wisconsin hosts the Expo this year and it will be held … Continue reading

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Managing 2,4-D and Dicamba in Enlist™ and Xtend® Soybean

Shawn P. Conley, Soybean and Wheat Extension Specialist Enlist™ and Xtend® traits are engineered to provide resistance to the group 4 synthetic auxin herbicides 2,4-D and dicamba, respectively. These traits allow, for the first time, POST applications for control of … Continue reading

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Tips for Nitrogen Management in Winter Wheat

Carrie Laboski, Professor and Extension Soil Fertility/Nutrient Management Specialist In general, apply N early. At 50% of research sites in 2014 to 2016, N application at green-up out yielded application at Zadoks growth stage 30 (GS30, hollow stem – just … Continue reading

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Now is a good time to get manure spreaders calibrated for determining manure nutrient credits

Kevin Shelley, UW NPM Program With profit margins tight, this spring is a good time for manure spreader weighing and calibration on dairy and livestock farms. Determining the weight of an average load of manure is an important step in … Continue reading

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2016 Soil, Water, & Nutrient Management Meetings

Francisco Arriaga, Assistant Professor and Extension Specialist, Dept. of Soil Science The Department of Soil Science, in conjunction with University of Wisconsin-Cooperative Extension will host eight Soil, Water, & Nutrient Management Meetings around the state, starting Tuesday, November 29 through Friday, … Continue reading

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Multiple Resistance to ALS- and HPPD-inhibiting Herbicides in Palmer Amaranth from Iowa County, Wisconsin

Nathan Drewitz, Devin Hammer, Shawn Conley, and Dave Stoltenberg Department of Agronomy, University of Wisconsin-Madison Increasing Concern over Palmer Amaranth Palmer amaranth (Amaranthus palmeri) has become a challenging weed management problem in the southern U.S. and has recently spread to … Continue reading

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Common Waterhemp (Amaranthus rudis): Confirmed Herbicide Resistance and Spread Across Wisconsin

Devin Hammer, Nathan Drewitz, Shawn Conley, and Dave Stoltenberg Department of Agronomy, University of Wisconsin-Madison Herbicide resistance is not new to Wisconsin, but is spreading. Common waterhemp (Amaranthus rudis) has become an increasing concern in Wisconsin in recent years.  A … Continue reading

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