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![Low-gradient prairie rivers tend to be highly meandering. Photo © Joe Dickie, Generation Photography, Inc. A low-gradient prairie river that is very meandering.](/sites/default/files/2022-07/P-00235-teaser.jpg)
Understanding Western South Dakota Prairie Streams
This document provides information and guidance for landowners and land managers in western South Dakota who are managing small intermittent streams.
![Canada thistle growing in a pasture.](/sites/default/files/2019-09/W-00397-01-canada-thistle-noxious-weed.jpg)
Noxious Weeds of South Dakota
Pictorial reference guide of noxious weeds in South Dakota
![Tanks of anhydrous ammonia being pulled to a field for fertilizer application.](/sites/default/files/2021-11/W-01246-01-Corn-Nitrogen-Fertilizer-Soil-Treatment-Nitrate-Fertility.jpg)
Updating Corn Nitrogen Fertilizer Rate Recommendations in South Dakota
Fact sheet updating corn Nitrogen Fertilizer Rate Recommendations in South Dakota.
![man holding a small pile of soil in his hands](/sites/default/files/2018-11/01-03-06-teaser-Soil.jpg)
South Dakota Fertilizer Rate Guidelines Calculator for Corn, Soybean, and Wheat
Calculator for Fertilizer Guidelines for Corn, Soybean and Wheat in South Dakota
![Youth being fitted with a bike helmet.](/sites/default/files/2022-06/MC-02648-02-4-H-Bike-Rodeo-Safety-Event-4H-Youth-Bicycle.jpg)
4-H Bike Rodeo and Safety
Overview document including complete lesson plans for a 4-H Bike Rodeo and Safety program to make youth aware of the importance of riding their bike.
![bunches of Aronia berries still on a bush](/sites/default/files/2018-12/W-00018-02-Aronia.jpg)
Soil Testing for Vineyards in South Dakota
Not all soils are conducive to growing quality grapes, so prospective vineyard sites should be tested before a decision is made to plant grapes. Tests can identify soils that are either too high in pH, salts, or salinity, or that are “too rich” (too high in organic matter and nitrogen) for grapes. In addition, testing before planting allows for the incorporation of nutrients—such as phosphorus—that do not move easily through the soil to plant roots.
![99-Robotics-teaser Two young males participating in the robotics challenge at the South Dakota State Fair](/sites/default/files/2019-01/99-Robotics-teaser.jpg)
South Dakota 4-H Robotics & Engineering 2019 Challenge Packet - Recycle Challenge
The South Dakota 4-H Robotics Challenge is an opportunity for youth who have been learning about robotics to demonstrate their learning, celebrate their accomplishments, and interact with others who share an interest in robotics.
![A young man sitting at a laptop discussing a project with a 4-H leader.](/sites/default/files/2019-02/W-00092-youth-stem-research-science-4H.jpg)
Youth Research: Where to Begin
Whether working on a science fair project, writing a class report, or just looking for general information on a topic it is a good idea to become familiar with the basic practices of conducting research.
![Poster display for research project.](/sites/default/files/2019-02/W-00093-research-stem-display-poster-board.jpg)
Presenting Scientific Information: Display Boards
For youth participating in scientific discovery, posters and display boards are a very common form of communicating scientific information.
![A notebook with a pen sitting on it.](/sites/default/files/2019-02/W-00099-00-science-engineering-notebook-pen.jpg)
Importance of Good Record Keeping: The Science & Engineering Notebook
Scientists and engineers use special notebooks or journals to make daily logs of what they are doing and what they have learned.