Influence of Long-Term Application of Organic and Mineral Fertilizers on Quality of a Savanna Alfisol

Autor:	P. O. Ogunleye, J. O. Ogunwole
Rok vydání:	2005
Předmět:	Topsoil Agronomy Renewable Energy Sustainability and the Environment Soil texture Loam Soil water Alfisol Environmental science Development Agronomy and Crop Science Soil quality Organic fertilizer Bulk density
Zdroj:	Journal of Sustainable Agriculture. 26:5-14
ISSN:	1540-7578 1044-0046
Popis:	The soils of the West African savanna are low in physical and chemical productivity. One conventional method of improving productivity of these soils is through application of organic materials either as a supplement or an alternative to mineral fertilizers. In terms of physical and fertility properties, the agricultural value of this practice is unquestionable. However, its influence on trace and heavy metal accumulation in the soil needs to be determined for the practice to be considered sustainable. This study investigated the occurrence of some trace and heavy metals in the topsoil of an Alfisol under 45 years of application of cowdung (D), nitrogen (N), phosphorus (P) and potassium (K) at Samaru, Nigeria. Results showed soil texture ranging from sandy loam to loam. Higher soil surface bulk density were observed for D, DN, K and NPK treatments, however, the DNPK treatment recorded a lower soil surface bulk density averaging 1.44 Mg m−3. Treatments with cowdung generally recorded a higher satu...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6af6cb30d258147130bec726e7d49c50 https://doi.org/10.1300/j064v26n03_03 Zobrazit plný text záznamu