Abstract
Restoring soil potentialities using zaï and compost in Yatenga (Burkina Faso). Land degradation is a serious problem in the soudano-sahelian zone of Burkina Faso. Studies were carried out between 2002 and 2004 in two villages, Somyaga and Ziga in the Yatenga Province. The main objectives were to identify and characterize the soil potentialities and constraints applying the geomorphopedological approach and to assess the possibilities of restoring degraded soils by implementing the zaï technique and incorporating composted manure with natural phosphorus. Soil identification based on representative morpho-sequences has shown the prevalence of leached tropical ferruginous soils. These soils therefore present a weak potentiality and a poor fertility without fertilization and conservation practices. Experiments with the zaï technique and composted manure enriched with burkina phosphorus conducted over three years markedly improved the above mentioned soil parameters and sorghum yields. Carbon, nitrogen, phosphorus and pH increased in the compost treatment. The ANOVA analysis has shown significant differences between compost treatments and the untreated control plots. In general, the increased yields vary from 300 to 500 kg.ha-1 according to the village in our experiment. About 40 species of herbaceous plants and trees have been regenerated by the zaï system in degraded land. Future research is needed to identify vegetal material adapted to the zaï system and to assess the impact on the micro biomass.
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Claims 5
Claim · model-written summary
Zaï and enriched compost markedly improved sorghum yields.
- Treatment
- zaï technique and composted manure enriched with burkina phosphoruse0
- Outcome
- sorghum yieldse0
- Direction
- improvede0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiments with the zaï technique and composted manure enriched with burkina phosphorus conducted over three years markedly improved the above mentioned soil parameters and sorghum yields.”
Claim · model-written summary
Compost increased soil carbon, nitrogen, phosphorus and pH.
Not reportedTaxonComparator
Verbatim
e0“Carbon, nitrogen, phosphorus and pH increased in the compost treatment.”
t0“zaï et du compost”
Claim · model-written summary
Compost treatments differed significantly from untreated plots.
Not reportedTaxonDirection
Verbatim
e0“The ANOVA analysis has shown significant differences between compost treatments and the untreated control plots.”
Claim · model-written summary
Yield gains varied from 300 to 500 kg.ha-1 by village.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, the increased yields vary from 300 to 500 kg.ha-1 according to the village in our experiment.”
e1“sorghum yields”
Claim · model-written summary
Zaï regenerated about 40 herbaceous and tree species on degraded land.
Verbatim
e0“About 40 species of herbaceous plants and trees have been regenerated by the zaï system in degraded land.”
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