CHARACTERIZATION AND MANAGEMENT OF SOILS OF AMANGWU-EDDA, EBONYI STATE FOR SUSTAINABLE RICE PRODUCTION
The study was conducted at Amangwu-Edda in Afikpo-South Local Government Area (LGA) of Ebonyi State,
Nigeria, to characterize the soils of the area and give management options for sustainable rice production. Two
hundred and fifty hectares of land was surveyed using the rigid grid method, based on the differences and
similarities of the morphological properties. Three (3) different mapping units were identified, and soil profile
pits dug and described morphologically, then samples were collected based on horizon differentiation from
bottom to top. The samples were prepared and subjected to routine laboratory analysis for selected physical and
chemical properties. Data generated were analysed using suitable statistical tools. The analytical results showed
that the percent clay had mean values of 26.47% for soil mapping unit 1, 31.80% for soil mapping unit 2, and
25.73% for soil mapping unit 3. The soil pH was strongly acidic (3.8 – 4.9) in all the soil mapping units studied.
The coefficient of variation showed that pH (H O) had low variation in all the soil mapping units, while organic 2
carbon (OC) and total nitrogen (N) had high variation in all the soil mapping units. A low to moderate variation
was recorded for percent sand, silt and clay for the three soil mapping units. Management options for yield
increase and sustainable rice production were suggested for rice growers in the study area.