suojaviljelystä

Suojaviljelystä is a Finnish term referring to a system of cultivation where certain crops are grown not for immediate harvest, but to protect the soil. These crops, often called cover crops, are planted between main crop growing seasons or alongside them. Their primary purpose is to prevent soil erosion caused by wind and water, especially during periods when the soil would otherwise be bare and vulnerable.

Cover crops also play a crucial role in improving soil health. Their root systems help to break up compacted soil, improving drainage and aeration. As they decompose, they add organic matter to the soil, which enhances its fertility and water-holding capacity. This organic matter also provides nutrients that can benefit subsequent crops.

Furthermore, suojaviljelystä can help in weed suppression. A dense cover crop can outcompete weeds for sunlight, water, and nutrients, reducing the need for herbicides. In some cases, specific cover crops can also help to control certain soil-borne pests and diseases, contributing to a more sustainable agricultural system. The choice of cover crop depends on the specific soil conditions, climate, and the goals of the farmer. Common examples include various types of clovers, grasses, and legumes.