Claim · model-written summary
A third year of bush fallow gave no yield advantage.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“a third year gave no advantage in respect of yield”
e1“yields of subsequent crops”
Title
Value of bush, grass or legume fallow in Ghana
Khazan Singh Journal of the Science of Food and Agriculture 1961. doi:10.1002/jsfa.2740120211
Other claims from this paper (9)
- Intervention effect Two years of bush fallow yielded better than one year.
- Intervention effect Five or six years of bush fallow yielded no better than continuous cropping.
- Intervention effect Elephant grass was the most effective fallow cover, followed by Guinea grass and pigeon pea.
- Intervention effect Fallow increased maize yields at two southerly stations.
- Intervention effect Fallow did not increase maize yields at three more northerly stations.
- Intervention effect Andropogon grass fallow was less successful on northern nitrogen-deficient soils than elephant or Guinea grass on southern rich soils.
- Observation Pigeon pea fallow gave good results at a Guinea Savannah station.
- Intervention effect Burning grass and surface soil increased soil P, K and Mg.
- Intervention effect The three grass fallow treatments did not differ significantly in their soil nutrient effects.