WINNIPEG, Manitoba : As extreme weather and human activity degrade the world's arable land, scientists and developers are looking at new and largely unproven methods to save soil for agriculture.
New"soil amendment" solutions, which improve the physical properties of soil, may complement the traditional ways - if they prove profitable and effective. Bayer and other companies are already working on non-chemical ways to add nutrients to crops such as adding microbes into soil but products aimed at regenerating farmland go further. Some, like liquid clay and biochar add nutrients while also improving the ground's ability to retain water, and require fewer applications than fertilizer.
Her research, which started in 2012, has shown that clay soil treated with biochar emitted drastically less nitrous oxide, benefiting the atmosphere and trapping more carbon in the ground where it can boost plant growth. Norway-based Desert Control has spent 18 years and $25 million developing liquid clay to boost soil. Last year, it injected its product into a patch of U.S. desert, where the clay binds with sand to better retain water and nutrients.
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