In an article by Iowa State University, they address nitrous oxide emissions from growing soybeans. This was a surprise as raising corn was the main contributor. Soybeans and corn are normally grown as a two year rotation. “Nearly half of our emissions in a typical cropping system come from soybeans, and we haven’t even been thinking about how to manage them.”
The article "Growing Soybeans Has a Surprisingly Significant E Footprint, but It Ripe for Reduction" discusses the environmental impact of soybean cultivation, focusing on the significant emissions footprint associated with this industry.
One key point made in the article is that soybean cultivation contributes to greenhouse gas emissions, particularly due to land use changes, such as deforestation and draining of wetlands for soybean farming. The article cites data that shows soybean cultivation has a higher emissions footprint than previously thought, with approximately 3.5 kg of CO2 emitted for every kg of soybeans produced.
To address this issue and reduce the emissions footprint of soybean cultivation, the article suggests several potential strategies and solutions. One approach is to promote sustainable farming practices, such as no-till agriculture, which can help sequester carbon in the soil and reduce emissions. Additionally, implementing precision agriculture techniques, using nitrogen-fixing cover crops, and improving fertilizer management can also help reduce emissions from soybean cultivation. The make the point :
“ Aerially sowing a winter cover crop of oats or rye into mature corn fields would cover soil with plants for the months between crops, and using an extended-growth soybean variety would allow earlier spring planting. The two-prong method would reduce soybean-year emissions by 33% and, with planting moved up about four weeks, increase yields by 16%, based on crop-system modeling.”
We have been writing articles about the importance of addressing this issue through sustainable farming practices on my Daily Kos site, Regenerative Agriculture for some time. As you can see in the Iowa State University article, practicing sustainable agriculture is not only better for our toxic emissions, but increased their yields.
Our federal government has programs that actually pay farmers to apply these practices, but sometimes change comes slow. We are the author of “How the Food Industry is Killing Us” at https://books2read.com/u/bodoJV or free at your library. We have a blog post “Urban Homesteader” where we comment on Regenerative Agriculture.
