õhuülevõt

õhuülevõt refers to a specific type of nutrient management practice primarily used in agriculture. It translates from Estonian to "air transfer" or "air intake" and describes a method where nutrients, particularly nitrogen, are moved from one part of a field or agricultural system to another through atmospheric processes. This can occur naturally through the volatilization of ammonia from manure or fertilizers and its subsequent redeposition elsewhere, or it can be managed through specific techniques.

In some contexts, õhuülevõt is considered a natural phenomenon where ammonia released from animal waste or soil can travel through the air and be absorbed by plants in adjacent areas or deposited onto different soil types. This can lead to localized nutrient enrichment in unintended locations, potentially causing environmental issues like eutrophication or imbalances in nutrient distribution within a farm.

More actively managed forms of õhuülevõt might involve practices designed to capture and redistribute these airborne nutrients. For instance, specific composting or storage methods for animal manure can influence the rate of ammonia volatilization. While not a widely adopted standalone technology, understanding the principles of õhuülevõt is relevant for optimizing nutrient use efficiency and minimizing environmental losses in agricultural settings. It highlights the interconnectedness of atmospheric, soil, and plant systems in nutrient cycling.