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an image of the cover of the SDSU Extension Fertilizer Recommendations Guide

SDSU Extension releases updated 2023 corn nitrogen fertilizer rate guidelines

March 27, 2023

South Dakota State University Extension has updated the corn nitrogen Fertilizer Recommendations Guide to reflect lowered rate recommendations.

Weeds growing abundantly between rows of soybean in a research plot.

Suspect Herbicide Resistance in Your Fields? SDSU Can Help!

Submission form to screen weeds for herbicide resistance in South Dakota.

A blank notebook sitting by eye glasses and photos.

Heirlooms: Creative Life Story Writing

Heirlooms: Creative Life Story Writing workshops offer free, professional writing guidance on a variety of topics, including life story writing, obituaries and family history.

male 4-H youth holding a model rocket

4-H Aerospace & Rocketry Project

Want to design, build, and launch your own rocket? Always been interested in airplanes and flight? Blast off to the aerospace and rocketry project area!

Small white insects with tent like wings present on a green leaf.

What Are These Small White Insects in My Soybean Field?

During the last two weeks we have received reports of increasing numbers of small white insects present on soybean. The insects in question are whiteflies.

Hand holding Purple Heart, Bronze and National Defense War Medals.

A Glimpse Into Family History Writing

Learn some writing tips for researching family history and genealogy and organizing your findings into compelling stories.

male youth giving a how-to demonstration

4-H Public Presentations Project

Presenting in front of others is one of the greatest, most important skills to learn and master. It can be scary, but with practice and tips learned through 4-H, you’ll be a pro in no time!

male youth participating in an artificial insemination demonstration

4-H Veterinary Science Project

The veterinary science 4-H project area connects a love for animals with an interest in science. Explore the many careers in animal and veterinary science, study the health and anatomy of animals, understand animal health in relation to humans, and learn through experience how to care for an animal.

male 4-H youth reviewing paperwork at a table

4-H Consumer Education Project

The consumer education program seeks to grant youth the knowledge and skills to become more financially responsible consumers as youth are challenged to compare products, prices, and services that are a part of our everyday lives.

a close up of buckthorn berries

Woody Weeds: Common Buckthorn

When considering weed control in tree plantings, the focus is generally placed on the control of herbaceous vegetation (grasses and forbs), particularly during the establishment phase. This focus is appropriate since control of herbaceous weeds is generally critical to establish a successful planting. As these plantings mature, providing perching sites for birds, another weed problem develops – the establishment of competing woody vegetation. These woody weeds are often left unchecked for many years because they look “natural” in a windbreak or other area of trees.