The distribution and utilization of agrogeological resources in Nigeria are discussed. These are rocks and minerals applied in agriculture. They occur in a wide variety of environments that range in age from Pre-Cambrian to Recent. The resources may be utilized to solve problems of pH, texture and structure of rocks. Limestone, dolomite and any base-rich materials like carbonatites, as well as basic and ultra basic silicate rocks could be used to correct acidity in soils. The adverse effects of soil alkalinity may be tackled by the application of suphides, for example pyrite and marcasite. Texture can be modified by adding geological materials to the soil that have contrasting grain size. Solid structure may be improved upon by providing a good nutrient base and by encouraging a buildup of organic matter. The resources could also provide essential plant nutrients which include nitrogen, phosphorus, potassium, calcium, magnesium, copper, manganese, iron, molybdenum, sulphur and boron.
Key words: Agriculture, geology, agrominerals, nutrients
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