Claim · model-written summary
Traditional tillage loses over 80 tons of soil per hectare annually in Andalusian olive groves.
- Treatment
- traditional tillagee0
- Outcome
- soile0
- Direction
- loste0
- Value
- more than 80 tons of soil per hectaree0
- Qualifier
- every yeare0
- Setting
- Andalusiane0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparator
Verbatim
e0“An average of more than 80 tons of soil per hectare has been lost every year in Andalusian olive groves with traditional tillage.”
Title
Herbicide Use in Spanish Olive Groves Conserves Soil and Water
Leonard Gianessi; Ashley Williams 2011
Other claims from this paper (13)
- Intervention effect Tillage increased olive-grove soil moisture by 8% relative to unchecked weeds.
- Intervention effect Herbicide weed control with no tillage increased soil moisture by 25% over no weed control.
- Intervention effect Olive production increased by an average 16% with no tillage.
- Observation Herbicide use is common in Spanish olive groves and has rapidly increased over twenty years.
- Observation Nearly 90% of olive groves in very mountainous regions use no tillage and herbicides.
- Intervention effect Bare soil treated with herbicides without tillage erodes at half the rate of tilled soil.
- Recommendation The recommended practice keeps soil beneath trees bare and vegetative cover between rows, with spring herbicides to prevent water competition.
- Intervention effect Vegetative cover between rows significantly reduces erosion, increases infiltration and reduces evaporation.
- Intervention effect Vegetative cover between rows increases water infiltration.
- Intervention effect Vegetative cover between rows reduces water evaporation.
- Observation Conventional tillage erosion was 13 tons/ha in Cordoba.
- Observation No tillage with bare soil erosion was 7 tons/ha in Cordoba.
- Observation Cover crop and herbicide management eroded at less than 1 ton/ha in Cordoba.