Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Capillary Movement of Water in Two Agricultural Soils Incorporated with Inorganic Fertilizer after Load ApplicationPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: 2017 ASABE Annual International Meeting 1700482.(doi:10.13031/aim.201700482)Authors: John O. Ohu, Eli E. Mamman Keywords: Sandy and Clay loam Soils, Moisture content, Capillary rise, Compaction, Hammer blows Abstract. The capillary movement of water in two agricultural soils incorporated with inorganic fertilizer (NPK) before load application was studied in the Department of Agricultural and Environmental Resources Engineering, University of Maiduguri in Borno State of Nigeria. The two soils were sandy loam and sandy clay loam collected from the University of Maiduguri Research Farm and near Coca-Cola Bottling Company both in Maiduguri. The samples were collected from the top 20 cm of the soil profile. The soils were air dried and ground to pass through a 2 mm sieve mesh size. The inorganic matter content (NPK) was incorporated into the soils at 2%, 4%, 6% and 8% on percentage dry mass basis. The moisture contents of the soils were raised to 12% and the soils with their initial moisture contents were taken as control. The soil-inorganic fertilizer mixtures were placed in soil cores with heights of 30mm, 60mm, 90mm, 120mm and 150mm and then subjected to static pressure of Proctor hammer blows of 15. The capillary rise for each of the compacted soils was determined. Results showed that the addition of inorganic fertilizer (NPK) increased the time for capillary rise with increase in the percentage of inorganic fertilizer added to the soils. (Download PDF) (Export to EndNotes)
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