Farms.com Home › Videos › Crops › Soybeans

Assessing Soybean Nodulation at R1 (Beginning Bloom)

Jul 21, 2020

Subscribe to our Newsletters

Video: Assessing Soybean Nodulation at R1 (Beginning Bloom)

It's important to assess soybean crops for nodulation in every field, every year. Assess nodulation at R1 to determine if your soybeans have enough nodules for sufficient N-fixation (10 or more per plant, on average). If nodule activity or number is insufficient, consider a rescue N-treatment of 50 lbs N/ac at R2-R3 (full flower to early pod).

1. Use a shovel to dig up roots and soak them in water to remove excess soil without breaking off nodules.

2. Cut nodules open to assess the colour. Pinkish-red nodules are actively fixing N.

Also be on the lookout for lemon-shaped cysts that may be on the roots, caused by soybean cyst nematode. These cysts will be much smaller than root nodules.

Business News by Better Farming

Case IH Now Has Guidance for Implements ›

Clean energy projects win $1B in fede... ›

Houston landowner saves ranch with fe... ›

The Role of AI in Sustainable Agricul... ›

Mucci farms adds 150 acres of greenho... ›

General News by Better Farming

Protein Industries Canada partnering ... ›

Illinois Farm Bureau taking American ... ›

Case IH Patriot sprayer sells for top... ›

Agri-Trade at 40 celebrating the past... ›

KAP 2024 District Meetings underway a... ›

Forums by Agriville.com

Grain Prices ›

The Climate and Meat. ›

I thought you guys said.. ›

Canola, Time for a Sale ›

Friday cocktail and end of week chat. ›

The Food Professor: think tank of one. ›

Call to Action Bill C 293 ›

Machinery News by Better Farming

Case IH Patriot sprayer sells for top... ›

Agri-Trade at 40 celebrating the past... ›

Conservation Practices Not a One-Size... ›

Ag Express Becomes North American Rep... ›

Fed Cuts Interest Rates by Quarter Point ›

Crop News by Better Farming

Protein Industries Canada partnering ... ›

Bolthouse Fresh Foods wins award for ... ›

Signify and UBC announce new goals in... ›

Mucci Farms acquires 150-acre Greenhi... ›

New approach to zinc fertilization bo... ›

Livestock News by Better Farming

Avian influenza challenges egg and tu... ›

New Grant Gets Proactive with Pigs ›

Assembly Committee Hears Testimony on... ›

Finding a Preventative Solution to a ... ›

USDA Extends Application Deadline for... ›

Sponsored Links:

Highest Yielding Soybeans, PigCHAMP Grow-Finish, Precision Agriculture, Swine Reproduction Software

This website uses tracking tools, including cookies. We use these technologies for a variety of reasons, including to recognize new and past website users, to customize your experience, perform analytics and deliver personalized advertising on our sites, apps and newsletters and across the Internet based on your interests.
You agree to our Privacy Policy and Terms of Access by clicking I agree.