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Articles by M.A. Awodun
Total Records ( 6 ) for M.A. Awodun
  M.A. Awodun , M.S. Otaru and S.O. Ojeniyi
  Sawdust ash (SDA) is a waste from wood and sawmilling industries. Effect of SDA combined with urea was investigated in plant height, yield and nutrient content of leaves of maize in two experiments in Okene, in the Guinea Savanna zone of Nigeria. Treatments were a 4 t ha-1 SDA, b) 250 kg ha-1 urea, c) 1 t ha-1 SDA + 187.5 kg ha-1 urea/d, 2 t ha-1 + 125 kg ha-1 urea, e) 3 t ha-1 SDA + 62.5 kg ha-1 urea and f, untreated control. The SDA at 4 t ha-1 increased height of maize insignificantly. The 1 t ha-1 SDA + 187.5 kg ha-1 urea gave highest maize yield and leaf N. Compared with untreated control, DSA, combined application of reduced rates of SDA and urea, the urea alone increased leaf N, P, k, Ca and Mg concentrations. Combined application of SDA and urea is a suitable option for maize cultivation.
  M.A. Awodun
  In order to investigate the suitability of zero and reduced tillage methods for cowpea production under a humid tropical condition, the soil properties and grain yield given by five tillage treatments, namely: zero tillage, manual clearing, ridging once, twice and thrice for three cowpea crops were compared. Compared with ridging, zero tillage and manual clearing increased soil nutrient and moisture status. Zero tillage and manual clearing gave higher soil bulk density and lower values of grain yield. Soil bulk density decreased and grain yield increased with increased frequency of ridging.
  M.A. Awodun
  The study investigated suitability of sawdust ash as nutrient source for cowpea. Six rates of ash: 0, 2, 4, 6, 8 and 10 t ha-1 were applied in two trials and soil and leaf nutrient composition and growth parameters were determined. Sawdust ash treatments applied to soil significantly increased soil and leaf N, P, K, Ca and Mg contents and numbers of pods, pod weight, number of branches, number of leaves and grain yield. Soil nutrient contents increased with the amount of sawdust ash up to 8 t ha-1 before it declined.
  M.A. Awodun
  This study investigated effect of poultry manure treatments and NPK fertilizer on growth, leaf nutrient content and yield components of Telfaria (Telfaria occidentalis Hook F) grown on Akure soil in the rainforest zone of Nigeria. The treatments applied were 0, 2, 4 6 t ha-1 poultry manure and 250 kg ha-1 NPK 15-15-15 fertilizer. Growth and yield parameters such as number of leaves and branches, stem girth, length of internodes were increased by poultry manure treatments. However, NPK fertilizer increase stem girth and number of leaves more than poultry manure. Relative to control, 2, 4, 6 t ha-1 of poultry manure and NPK fertilizer increased number of branches by 6.01, 7.01, 7.23, 7.72 and 6.89%, respectively. The increases in number of leaves were 16.57, 20.17, 20.12, 20.63 and 22.50%. The 6.0 t ha-1 manure is recommended.
  O.A. Ajayi , M.A. Awodun and S.O. Ojeniyi
  Screen house experiments were conducted at Ibadan and Akure Southwest Nigeria to study effect of applications of Cocoa Pod Husk Ash (CPHA) on nutrient uptake by kola (Cola nitida) seedlings. Six levels of CPHA namely 0, 2, 4, 6, 8 and 10 t ha-1 and NPKF fertilizer (NPKF) applied to soil at 200 kg ha-1 were compared as to their effect on growth parameters and nutrient uptake by kola seedlings. CPHA at 2, 4, 6, 8 and 10 t ha-1 and NPKF increased stem girth, number of branches and leaf area. The NPKF gave highest leaf area. The 6 t ha-1 CPHA gave highest values of stem girth and number of branches among CPHA treatments. Application of CPHA increased stem N concentration and uptake of P, K, Mg and Ca. At Ibadan NPKF gave highest stem N and P content, but at Akure applications of CPHA gave higher stem N, P, Mg and Ca status than NPKF.
  M.A. Awodun
  Field trials were carried out at two locations in fairly acidic soils in Southwest Nigeria to test effect of sawdust ash on soil chemical properties, leaf nutrient content and yield of cowpea (Vigna unguiculata Walps). Sawdust ash applied at 2, 4, 6, 8 and 10 t ha-1 significantly increased soil organic matter, pH, N, P, K, Ca and Mg contents relative to 0 t ha-1 sawdust ash. The 4, 6, 8 and 10 t ha-1 sawdust ash increased pod weight and grain yield. The mean increases in grain yield across locations were 17, 63 and 68%, respectively.
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