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Title:A comparative analysis of soil and nutrient losses on maize plots with different tillage pratices in the Ikpoba river basin of south-western Nigeria
Author:Avwunudiogba, AugustineISNI
Periodical:The Nigerian Geographical Journal
Geographic term:Nigeria
Subjects:soil fertility
shifting cultivation
Abstract:This paper evaluates the effects of different tillage practices under the emerging monocultural practice of maize cultivation on soil erosion and soil nutrient loss within the Ikpoba river basin, southwestern Nigeria. Runoff plots were constructed and data for five different tillage practices (ridging across slope, tied ridges, ridges parallel to slope, no tillage and mound) on the runoff plots were collected during the growing season between March and July 1994. The results show that these tillage practices have potential for generating high soil loss values. The magnitude of soil nutrient loss is equally high. No tillage is the least harmful, followed by ridges parallel to slope, mound, ridges across slope, and tied ridges. Bibliogr., sum.