Claim · model-written summary
Surface soil organic nitrogen explained much variation in forage yield.
Not reportedTaxonMaterialGeneOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Verbatim
e0“A major proportion of this variation was explained by total shrub and tree cover, organic nitrogen and organic carbon in the surface soil”
Title
Factors contributing to differences in forage yield in the semi-arid woodlands.
AD Wilson; DJ Tongway; GJ Tupper The Rangeland Journal 1988. doi:10.1071/rj9880013
Other claims from this paper (10)
- Observation Mean forage yield varied from 34 to 237 kgha.
- Association Total shrub and tree cover explained much variation in forage yield.
- Association Surface soil organic carbon explained much variation in forage yield.
- Observation Nitrogen differences were considered to arise from differential erosion and were characterized more accurately by laboratory measures than field erosion observations.
- Observation Perennial grasses dominated plots exclosed from grazing.
- Association Composition differences contributed little to variation in digestible forage yield because nearly all species were edible.
- Observation Perennial forbs such as Sclerolaena diacantha had the highest digestibility.
- Observation Biennial grasses such as Stipa variabilis had the lowest digestibility.
- Recommendation The authors recommend total shrub and tree cover for monitoring pastoral productivity.
- Recommendation The authors recommend erosion extent and severity for monitoring pastoral productivity.