Vangerven
Controlled drainage is the practice of using a water control structure to raise the depth of the drainage outlet, holding water in the field during periods when drainage is not needed. Unlike conventional free-draining systems that remove excess soil water to the drain depth, controlled drainage increases water retention and storage within the soil profile.
Heikanthoeve
A weir is a small construction in a ditch or stream that enables the landowner to regulate the water level and to allow the water to infiltrate in the soil.
Ofčí statek Brníčko
On the grassy slope, shallow ditches with dimensions of 10 m in width and 100 m in length were dug with a single-row plough in the direction of the contour lines at 10 m distance to harvest rainwater in the soil.