An economic evaluation of a long-term experiment on phosphorus and manure amendments to sandy Sahelian soils: Using a stochastic dominance model uri icon

abstract

  • Poor fertility status of sandy Sahelian soils represents a major constraint to cereal and legume production. Soil amendment options were evaluated, using a stochastic efficiency framework. Dominance analyses showed that in the presence of annual applications of 30 kg N ha?1 and 30 kg K ha?1, efficient soil amendment options comprise of either the annual application of 8.7 kg P ha?1 in the form of single superphosphates in combination with 5 tonnes manure ha?1 applied every three years or the annual application of 17.5 kg P ha?1 in the form of single superphosphates. Choice between these two efficient options depends on the availability of manure, deficiencies in sandy soils and farmer resource endowments

publication date

  • 1992
  • 1992