Claim · model-written summary
Andropogon grass fallow was less successful on northern nitrogen-deficient soils than elephant or Guinea grass on southern rich soils.
- Taxon
- subsequent cropse1
- Treatment
- Andropogon grass fallowe0
- Outcome
- successfule0
- Direction
- did not prove so successfule0
- Comparator
- elephant or Guinea grasse0
- Setting
- the northe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier
Verbatim
e0“Andropogon grass fallow did not prove so successful in the nitrogen‐deficient soils of the north as did the elephant or Guinea grass in the rich soils of the southern area of forest”
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 A third year of bush fallow gave no yield advantage.
- 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.
- 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.