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Articles by W.A. Molindo
Total Records ( 2 ) for W.A. Molindo
  J.O. Erhabor and W.A. Molindo
  Field studies were carried out in Onisere, Ondo State, located between latitude 6° 41 N and longitude 5° 11 E of South Western Nigeria. The aims were to assess the nutrients potentials of a soil continuously cropped with (cocoyams) Xanthosoma sagittifolia (L). The soil order is Alfisols developed from basement complex rocks and locally classified as Owo series of Ondo associations. The studies investigated the potentials of the soil to retain nutrients. Therefore, using this quality of the soil nutrient retention potential as a bench mark to encourage farmers to grow cocoyam continuously for a reasonable period without applying inorganic fertilizers. Randomly collected soil samples before and after planting during the cropping, seasons were subjected to laboratory analyses. The results showed significant (p = 0.05 ) difference in soil N, P, K, Mg, Ca, Na, OM and pH within the period of continuous cropping. However, yield were not significantly (p = 0.05) different but morphological parameters (leaves numbers, plants heights and stems girths) differ significantly (p = 0.05 ) during the three seasons of continuous cropping. The experiment proved that the nutrients potentials of the soil sustained the continuous growth of cocoyam for a period of three cropping seasons. The potential nutrients retention of this soil was encouraged by its inherent nutrients and characteristics. Therefore, farmers may be advised to grow cocoyam in this soil without being apprehensive of inorganic fertilizer applications.
  W.A. Molindo and O.M. Alile
  Investigations were conducted to evaluate the thermal conductivity of soils of Sedimentary rock origin in two locations namely; Obaretin in Ikpoba/Okha and Idumabi-Irrua in Esan Central Local Government Areas respectively in Edo State, Nigeria. The study was aimed at validating the effects of the thermal regimes of these soils and their relation to soil productivity. The investigation showed that soil conductivity is related to temperature factors such as soil resistance and resistivity that controls the processes involved in the production and plant growth. The investigation showed that soil thermal conductivity is related to temperature and solar radiation factors such as soil resistance and resistivity, that control the processes involved in plant growth and productivity with accompanied macro and micro fauna in soils. Functional activities of plant roots such as absorption of water and nutrients are encouraged at low or high soil thermal conductivity levels. In this study, there were significant (p = 0.05) differences in thermal conductivity in the soils of both locations. Similarly soil resistance and resistivity were significantly different (p = 0.05) in the two locations (Obaretin and Idumabi Irrua) in Ikpoba-Okha and Esan Central Local Government Area, Edo State, Nigeria. This study indicates attributes of temperature changes in soil regimes, reflecting the difference in vegetation obtained in the two locations. Therefore soil productivity and plant growth is influenced by soil thermal conductivity and it’s related factors such as soil resistance and resistivity.
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