PRE-emergence Herbicide Selection for Early Planted Soybeans

Nov 25, 2021

By Arriaga Atucha Broeske and Conley Dan et.al

Over the last two growing seasons (2020 and 2021), weather and soil conditions across southern Wisconsin were favorable for early soybean planting (see USDA NASS data below). Under suitable environmental conditions, planting soybean early is a recommended strategy to increase the crop’s yield potential (See Dr. Shawn Conley’s blogpost: “Just the Facts Jack: Soybean Planting Date, Seeding Rate and Seed Treatment Recommendations”).

Article Link: https://bit.ly/3C5Iq3K

Can I skip a PRE-emergence application in early planted soybeans and control weeds POST only? We recommend against that. The use of an effective PRE-emergence herbicide is the foundation for chemical weed control in soybeans. Limited effective POST-emergence herbicide options are available for control of herbicide-resistant weed species such as waterhemp and giant ragweed.

Can I delay my PRE-emergence application in early planted soybeans? Yes, one could do so by selecting herbicides with soil residual activity that can be sprayed before crop emergence instead of herbicides that must be sprayed within 3 days of crop planting, particularly when the soybean crop is being planted early in the spring, is not expected to emerge for several weeks, and weeds are not actively emerging due to low soil temperatures. Keep in mind that PRE-emergence herbicides are effective if timely incorporated (by light tillage and/or precipitation) and active in top soil solution as weeds germinate and emerge.

With all that in mind, we developed the following handy table displaying the application window of commonly used herbicides with soil residual activity in soybean cropping systems.

Click to find the handy table developed by Arneson et al.: “Application Window for Soybean Herbicides with Soil Residual Activity”.

Source : wisc.edu

Video: Why Port Infrastructure is Key to Growing Canada's Farms and Economy

Grain Farmers of Ontario (GFO) knows that strong, modern port infrastructure is vital to the success of Canada’s agriculture. When our ports grow, Ontario grain farmers and Canadian farms grow too—and when we grow, Canada grows.

In this video, we highlight the importance of investing in port infrastructure and how these investments are key to growing Ontario agriculture and supporting global trade. The footage showcases the strength of both Ontario’s farming landscapes and vital port operations, including some key visuals from HOPA Ports, which we are grateful to use in this project.

Ontario’s grain farmers rely on efficient, sustainable ports and seaway systems to move grain to markets around the world. Port investments are crucial to increasing market access, driving economic growth, and ensuring food security for all Canadians.

Why Port Infrastructure Matters:

Investing in Ports = Investing in Farms: Modernized ports support the export of Canadian grain, driving growth in agriculture.

Sustainable Growth: Learn how stronger ports reduce environmental impact while boosting economic stability.

Global Trade Opportunities: Improved port and seaway systems help farmers access new global markets for their grain.

Stronger Communities: Investment in ports means more stable jobs and economic growth for rural communities across Ontario and Canada.

We are proud to support the ongoing investment in port infrastructure and to shine a light on its vital role in feeding the world and securing a prosperous future for Canadian agriculture.

Special thanks to HOPA Ports for providing some of the stunning port footage featured in this video.