Effect of Sawah Technology on Soil Physical and Chemical Properties of NERICA Rice Field in the South-East of Nigeria

C. N. Edu, S. I. Oluka and S. O. Obiya
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C. N. Edu: Department of Agricultural and Bioresource Engineering, Ebonyi State University, PMB 053 Abakaliki, Nigeria.
S. I. Oluka: Department of Agricultural and Bioresource Engineering, Enugu State University of Science and Technology. PMB 01660, Enugu, Nigeria.
S. O. Obiya: Department Computer and Data Science, The National University of Science and Technology MISIS, Moscow, Russia.

International Journal of Research and Innovation in Social Science, 2025, vol. 9, issue 5, 2303-2314

Abstract: Effect of sawah technology on soil physical and chemical properties of rice field in the South-East of Nigeria was carried out. Field experiments were conducted during rainy season in two different locations Ishieke in Ebonyi local government area of Ebonyi State (N 06° 22.704, E008 02.501’) and the second location at Imeoha Nkerefi, Nkanu East local government area of Enugu State (N 06° 04.991, E007 42.072’) all in the south-east of Nigeria. Six New rice for Africa (NERICA) rice varieties which include Sipi692033, WITA 4, NERICA 34, NERICA 1, NERICA 7 and NERICA 19 were used for the study. Two Sawah fields measured 0.3ha each were designed by constructing major bond at the perimeter of the rice field while peripheral bonding was done to get six basins. Another field in the same area was mapped out of the same measurement 0.3ha without bond known as non-sawah field. Samples were collected from both sawah and non-sawah field. Pre and post soil test were performed in the department of Soil Science, Ebonyi State University (EBSU), Abakaliki. The study revealed that before planting, the soil pH of sawah field was 6.2 while after planting it was 6.5, Phosphorus content in sawah field was 65% while after planting it was 75%, Nitrogen content in sawah field was 0.11% while after planting it was 14%, Organic matter content in sawah field was 1.73% while after planting it was 2.22%. Hence, the results show that all values of the mean and standard deviation of the twelve average samples of the soil chemical and physical characteristics are significantly (P>0.05) different

Date: 2025
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