Udeozo PI, Okeke MU, Okeke HC, Aniobi CC, Okeke OR and Offor EN
Studies were carried out to evaluate the effect of soil fertilizer amendment on the physicochemical properties of two land surfaces (upland and lowland) after rice harvest in Ishiagu, Ivo local government area of Ebonyi State, using standard analytical procedures. For each of the land surfaces, samples D1, D2, D3 and D4 denoted 0, 50, 100 and 150 kg NPK amendments respectively. The obtained data were subjected to one way analysis of variance at 5% confidence level.
The upland soil samples D1- 4 had mean range of pH, organic matter, organic carbon, cation exchange capacity, N, P and clay values after harvest as 6.82- 7.30, 2,581-2.832%, 1,170.1.587%, 8.030 -9.860 Meq/100g, 0.116 – 0.158%, 9.303 -20.331% and 13.071 – 14.730% respectively.
Also, the lowland soil samples D1- 4 had mean range of pH, organic matter, organic carbon, cation exchange capacity, N, P and clay values after harvest as 6.32 - 6.92, 2.607 -2.811%, 1.103 – 1.280%, 9.123 – 9.853 Meq/100g, 0.00 – 0.190%, 9.701 – 12.879% and 17.40 – 20.404% respectively. The mean values of the studied physicochemical parameters of the amended upland and lowland soil samples after harvest were within their respective permissible limits. With the exception of the organic matter content, the other studied physicochemical parameters of the lowland and upland soil samples D1- 4 showed statistical significance.
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