1992
DOI: 10.1002/ldr.3400030302
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Amelioration of a highly degraded tropical alfisol by planting I. Changes in soil physical and chemical properties 1989‐91

Abstract: This paper examines soil amelioration by planting 15 leguminous and graminaceous plant species, including herbaceous annuals, perennials and biennials, and woody perennials and biennials. Disturbed and undisturbed natural regrowth were planted with leguminous species, in some cases with fertilizer applied at planting (400 kg ha-of 15: 15: 15 NPK). The studies were made on two highly degraded sites in southwestern Nigeria which had been subjected to intensive mechanized cropping for a period of 10 years. Change… Show more

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Cited by 23 publications
(16 citation statements)
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“…The natural fallow was as effective as or even better than some of the planted tree (improved) fallow species in improving topsoil pH, % organic carbon, % total nitrogen and bulk density over time. This supports the report on the soil ameliorative capacity of natural fallow in humid West Africa (Hullugalle 1992). Furthermore, it adds to the list of studies which show that non-legumes are capable of improving microsite soil fertility (Deans et al 2003;Fisher 1995).…”
Section: Discussionsupporting
confidence: 78%
“…The natural fallow was as effective as or even better than some of the planted tree (improved) fallow species in improving topsoil pH, % organic carbon, % total nitrogen and bulk density over time. This supports the report on the soil ameliorative capacity of natural fallow in humid West Africa (Hullugalle 1992). Furthermore, it adds to the list of studies which show that non-legumes are capable of improving microsite soil fertility (Deans et al 2003;Fisher 1995).…”
Section: Discussionsupporting
confidence: 78%
“…The experiment was established as a randomized complete block design with four replications of 15 planted fallow species (Hulugalle 1992), each occupying a plot size of 12 6 24 m. Those which persisted between 1989 and 1996 were Pueraria phaseoloides (Roxb.) Benth, Senna siamea Lam, Leucaena leucocephala Lam de Wit., Acacia leptocarpa and Acacia auriculiformis A. Cunn.ex Benth.…”
Section: At E R I a Ls A N D M Et H O Dsmentioning
confidence: 99%
“…Protection against fire is particularly important because fires are known to reduce coppicing ability (Stocker, 1981;Rizwan, 1982;Uhl, 1982). Hullugalle (1992) has emphasised site protection as a prerequisite for natural regrowth on highly degraded sites in humid West Africa.…”
Section: Resultsmentioning
confidence: 99%