EFFECTS OF DUMPSITE SOILS ON MAIZE YIELD IN PORT HARCOURT, RIVERS STATE
Abstract
This study examined the effect of dumpsite soils on maize yeild in Port Harcourt, Rivers State. Dump site soil samples were collected from three locations (Njemanze, Mileone flyover and Chinda) and the control soil from Rivers State University. The soil samples were analysed for N, P, K, Mg and Zn. Results of the soil analysis showed high nutrient concentrations in the dumpsite soils than the control except for poatassium. The results also showed that there were slight differences in the nutrient profile of the dumpsite soils with nutrient analysis of total nitrogen (1.17±0.003, 0.92±0.006, 0.54±0.003 and 0.08±0.001), phosphorus (10,11±0.08, 9.31±0.06, 9.58±0.03 and 1.32±0.005), magnesium (60.541±1.67, 67.384±3,89, 113.307±5.09 and 22.311±0.23), potassium (3702.236±6.03, 3345.778±3.90, 5770.125±9.34 and 7501.789±11.56) and zinc (142.303±3.04, 2837.142±12.45, 163.141±2.06 and 38.903±1.11) for Njemanze, Mileone flyover, Chinda and control respectively. Yield assessment revealed highest and lowest weight and length of cob for Chindah and Njemanze respectively. Mileone flyover recorded highest width of cob (4.0) while lowest width (3.6) was observed for Njemanze. Generally, the nutrient levels in the dumpsite soils were high and resulted to higher yield of maize. The use of dumpsite soils portends a greater agricultural yield for maize growth and should be encouraged but care should be taken to avoid soils that are heavy metal impacted as this is detrimental to health.
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References
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