Subsurface management of wet heavy soils | Uredjenje prevlazenih zemljista teskog mehanickog sastava po dubini
2010
Radojevic, R., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Ercegovac, Dj., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Gligorevic, K., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Pajic, M., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
Mole drainage, on the right soil type and done properly can help reduce waterlogging problems. While surface drainage can improve the situation by removing excess surface water, in most cases the soil profile inself needs to be drained, so that crops can reach their potential, while damage by treading and compaction can be reduced. Mole drains do not drain groundwater but remove water as it enters from the ground surface. Soils should have clay content in the range of 30 to 35% to ensure long lasting mole channels. Heavy soils, with low rates of soil-water movement, require closely spaced (2-6 m apart) subsoil drain systems to provide sufficient water movement to control the effects of salt-waterlogging on an alfalfa field. Water management is critical for optimal production of alfalfa , with drought stress typically resulting in loss of production, and excess water leading to yield drops as well as stand losses.
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