Browsing Journal Articles by Author "Othieno, Caleb"
Now showing items 1-8 of 8
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Development of maize single cross hybrids for tolerance to low phosphorus
Gudu, Samuel; Kisinyo, Peter; Ouma, Evans Ochieng; Ligeyo, Dickson; Matonyei, Thomas; Were, Beatrice Ang’iyo; Agalo, Joyce; Too, Emily; Onkware, Augustino; Okalebo, John; Othieno, Caleb (2015-08-21)Low available phosphorus (P) is one of the major hindrances to maize (Zea mays L.) productivity in acid soils. The objectives of this study were to: (1) develop P-efficient maize inbred lines, (2) develop single cross ... -
Effect of organic and inorganic phosphorus sources on maize yields in an acid soil in western Kenya
Kisinyo, Peter; Opala, P. A.; Okalebo, Æ J. R.; Othieno, Caleb (Research Gate, 2009-06-20)Maize production in western Kenya is commonly limited by P deficiencies and aluminum phytotoxicity. Due to high costs of imported fertilizers and lime, focus is now shifting to solutions that utilize local resources. We ... -
Effects of combining organic materials with inorganic phosphorus sources on maize yield and financial benefits in western Kenya
Opala, P. A.; Othieno, Caleb; Kisinyo, Peter (Cambridge University Press, 2009-10-09) -
Effects of lime, phosphorus and rhizobia on Sesbania sesban performance in a Western Kenyan acid soil
Kisinyo, Peter; Othieno, Caleb; Gudu, Samuel; Okalebo, J. R.; Opala, P. A.; Maghanga, J. K.; Agalo, Jerry; Ng'etich, W. K.; Kisinyo, Joyce; Osiyo, R. J.; Nekesa, A. O.; Makatiani, E. T.; Odee, D. W.; Ogola, B. O. (2015-07-21)Aluminium (Al) toxicity, phosphorus (P) deficiency and low rhizobia populations limit Sesbania (Sesbania sesban) performance in tropical acid soils. The study determined the i) indigenous rhizobia populations that nodulate ... -
Immediate and residual effects of lime and phosphorus fertilizer on soil acidity and maize production in western Kenya
Kisinyo, Peter; Othieno, Caleb; Gudu, Samuel; Okalebo, J. R; Opala, P. A.; Ng'etich, W. K.; Nyambati, R.O.; Ouma, Evans Ochieng; Agalo, Jerry; Kebeney, S.J; Too, E.J; Kisinyo, Joyce; Opile, W.R. (2015-08-21)Soil acidity and phosphorus (P) deficiency are some of the major causes of low maize yields in Kenya. This study determined the immediate and residual effects of lime and P fertilizer on soil pH, exchangeable aluminium ... -
Micro-Dosing of Lime, Phosphorus and Nitrogen Fertilizers Effect on Maize Performance on an Acid Soil in Kenya
Kisinyo, Peter; Gudu, Samuel; Palapala, Valerie; Opala, P. A.; Othieno, Caleb; Ouma, Evans Ochieng (Sustainable Agriculture Research, 2015-03-17)High cost of inorganic fertilizers and lime has precluded their use by smallholder farmers to remedy the problem of soil acidity and infertility in Kenya. To address the problem, we tested a precision technique referred ... -
Phosphorus Sorption and Lime Requirements of Maize Growing Acid Soils of Kenya
Kisinyo, Peter; Othieno, Caleb; Gudu, Samuel; Okalebo, J. R.; Opala, P. A.; Maghanga, J. K.; Ng'etich, W. K.; Agalo, Joyce; Opile, R.W.; Kisinyo, Joyce; Ogola, B. O. (2015-08-21)In Kenya, maize (Zea mays L.) is mainly grown on acid soils in high rainfall areas. These soils are known for low available phosphorus (P), partly due to its sorption by aluminium (Al) and iron oxides. The study ... -
Recent advances towards understanding and managing Kenyan acid soils for improved crop production
Kisinyo, Peter; Palapala, Valerie Adema; Gudu, Samuel; Opala, P. A.; Othieno, Caleb; Okalebo, J.R.; Otinga, A.N. (African Journal of Agricultural Reseach, 2014-06-18)