Today’s most successful farmers understand that sustainable agriculture isn’t a binary choice between practicing it and not. Instead, they view sustainable practices as tools in their business toolbox. These tools can help reduce costs, protect yields, and ultimately improve their bottom line. This perspective has led to an uptick in the number of farmers adopting innovative sustainable practices as tools for achieving far more concrete goals.
From Eradication to Management
For many years, the predominant approach to crop management was rather simplistic: eliminate all threats as effectively as possible. Weeds, pests, and pathogens were all seen as issues that needed to be totally wiped out, rather than simply kept in check. This made sense in a world where input costs were low and resistance wasn’t an issue, but our current reality is very different.
A shift to thinking about soil, weed, and pest management has different goals. Instead of asking questions like, “how can I kill all the weeds in my field?,” you’re asking questions like “how can I keep weed pressure below the economic threshold and preserve soil structure?” That’s a more complex goal, and it requires more tools and strategies to achieve it. But in doing so, you’re also more likely to foster healthy soil and reduce weed pressure not just for this season, but for several to come.
Soil health stands at the heart of these decisions. A thriving soil microbiome plays a role in nutrient availability, water retention, and even natural pest suppression in ways that synthetic fertilizers and pesticides never could. Once you begin to manage for long-term soil health, rather than short-term crop yield, practices like cover cropping, crop rotation, and reduced tillage become economically viable, without even discussing the myriad environmental advantages.
Biological Inputs Are Moving Into Mainstream Programs
This is the area where we’ve seen the first major market adoption of bioherbicides and other biological crop inputs. Understanding the options available for weed control for agriculture is increasingly part of how serious operations build resilient management programs, particularly where resistant species have made single-product programs unworkable. More recently, but more slowly, bubbling consumer sentiment on pesticide use should start to boost bioherbicide use in many OECD markets in the coming years.
The Superweed Problem Changed the Calculation
The number of herbicide-resistant weed species has been increasing by 9 species annually, with 30 additional species evolving resistance since 2015 (Weed Science Society of America). Resistant weed populations are rapidly increasing, taking the present-day threat of 500 unique and site-of-action resistant weed biotypes to a previously unimaginable prediction of 10,290 by 2051, on the current trajectory (Weed Science Society of America).
The problem is biodiversity, not the kind of biodiversity where fields are a patchwork of a thousand tiny plots, but genetic diversity of weed species. When chemical control wipes out 99% of weeds, the top 1% weakest or not in the line of sight of the spray nozzle get a head start. Spray often enough, and it’s the beginning of the end for competition from the other 99%.
Realistically, chemicals aren’t going anywhere, and there are some very good reasons they shouldn’t. It’s finding that middle ground, using herbicide where it’s really needed, and targeting weed competition where herbicide can be avoided.
Precision Technology is Reducing Input Volume
One of the advantages of precision agriculture that is not appreciated enough is that it makes traditional inputs easier to defend, not more difficult. When you can apply herbicide specifically to areas where GPS-referenced data has identified weed pressure, as opposed to spraying the whole field, the overall chemical load drops dramatically.
Whether it’s drone-based scouting, variable-rate application gear, or IoT soil sensors, the whole idea is to get growers to stop treating a 500-acre field as if it were a single uniform entity. Different zones have different levels of weed pressure, different soil moisture, different nutrient requirements. Precision application matches input to real conditions, reduces costs, and reduces the kind of environmental exposure that regulators and/or buyers are becoming more interested in assessing.
The environmental benefits here, less runoff, less chance of eutrophication of nearby water systems, are certainly real. But far more often, the economic logic is what makes the sale. Growers that switch to variable rate typically report a solid, double-digit percentage decline in input costs per acre within the first year or two.
Soil Investment Pays Back Over Time
No-till and reduced-till farming practices, when implemented along with regular cover crop usage, increase the soil’s organic matter. This ultimately pays off economically: soil with higher organic matter retains more water, lowering the need for irrigation, and sustains the microbial ecosystem that processes nutrients for the plants.
There is an initial cost to switching over. But there’s also a return on your investment. Farmers who’ve adopted these practices will tell you years one and two are tough, but shortly after you start noticing savings on your bills and you get consistent yields in drier seasons.
When it comes down to it, sustainable agriculture is not a matter of principles; it’s about creating a system that performs better in the long run than when you started, and that’s just good business.
