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From Fungi to Sugars … Knowing the 8 Different Types of Biologicals

By No-Till Farmer Staff posted on December 24, 2025 | Posted in Ag Biologicals
Agricultural biologicals comprise a growing sector of the ag industry — one that is expected to triple to a $33.7 billion market by 2035. Connor Sible, a research associate at the Univ. of Illinois, has spent the past 8 years studying biologicals and shares 8 categories of biological products to help inform decisions for your no-till program.
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How Nitrogen-Fixing Bacteria Sense Iron

September 17, 2019
Source: University of East Anglia
In many nitrogen-fixing bacteria, a protein called RirA plays a key role in regulating iron by sensing high levels of the metal and shutting down the production of proteins that bring in more iron. RirA contains a cluster of four iron and four sulfur atoms, which acts as a sensor for iron availability. But until now, exactly how this cluster structure detects iron levels in a cell was unclear, says the University of East Anglia.
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The National No-Tillage Conference returns January 12-15, 2027! Build and refine your no-till system with dozens of new ideas and connections at the 35th Annual National No-Tillage Conference in Indianapolis, Jan. 12-15, 2027. Experience an energizing 4-day agenda featuring inspiring general session speakers, expert-led No-Till Classrooms and collaborative No-Till Roundtables. Plus, Certified Crop Adviser credits will be offered.

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