Rapid Advancement on Integrated Application of Sawdust Ash Manure and Urea Fertilizer on Soil Chemical Properties and Sesame (Sesamum Indicum L.) Performance

Анотація

One of the solutions to food insecurity and malnutrition in Sub-Saharan Africa is to promote local crops, encourage the use of locally source materials as amendment, improve their traditional system of production, and so diversify subsistence crop. Despite the increasing demand and price of sesame in the world market, its productivity is declining from 8 to 3q/ha in most part of the planting region of Africa. The major reasons are the lack of knowledge and skill in land preparation and agronomic practices, weather uncertainties, pest outbreak and above all the use of fertilizer. Integrated application of organic and inorganic nutrients sources rather than total dependence on any of the sources is expected to ensure reduction in expenditure on chemical fertilizers, a more balanced plant nutrition and control of soil acidity. Due to increasing number of saw milling industries, sawdust is being daily generated and burnt. There is urgent need to study the use of sawdust ash waste for soil improvement and as fertilizer and liming material. Hence, the objective of this review tend to evaluate the effect of combined application of Sawdust ash and its combined application with Urea fertilizer on the growth and yield of sesame plant nutrients composition and sesame nutritional quality. Crops have become so expensive to grow that nutrient deficiencies should not be allowed to limit the yields. With management practices such as continuous cropping and reduce fallow periods, the soil can hardly support cropping. The need therefore, arises for production practices that will ensure high yield. The integrated application of organic and inorganic nutrient sources rather than total dependence on any of the sources is expected to ensure reduction in expenditure on chemical fertilizers, a more balanced plant nutrition and control of soil acidity. Since sawdust ash is a waste which poses environmental concern, its combined use with chemical fertilizer in crop production will assist in environmental sanitation.