By Andi Anderson
Soil is often overlooked when discussing farming practices, yet it plays a critical role in the success of crop growth.
One important factor is soil aggregate stability, which determines how well soil particles stick together and how they behave under stress, such as rainfall or equipment weight.
Soil is composed of particles of different sizes: clay, silt, and sand. While sand particles are visible, clay and silt are much smaller.
Soil texture depends on the mix of these particles, but more importantly, soil health depends on how these particles are glued together into larger clumps called aggregates. Stable aggregates improve soil structure, allowing water to penetrate easily.
When soil particles are loosely connected, they break apart with minimal force. This is problematic when it rains. Heavy rain can cause soil particles to detach, leading to erosion and runoff, taking vital nutrients like phosphorus with them.
This can also cause soil crusting, which makes it hard for seeds to emerge in the spring.
On the other hand, strong soil aggregates create open pore spaces, allowing water to filter through the soil instead of running off.
This not only helps crops by maintaining moisture but also prevents erosion and nutrient loss. Maintaining stable soil aggregates helps farmers manage heavy rainfall and improve crop yields.
With more frequent extreme weather events, ensuring that soils maintain strong aggregate stability is essential for successful farming. By focusing on soil health, farmers can protect their land and improve productivity.
Photo Credit: gettyimages-sasiistock
Categories: Illinois, Sustainable Agriculture