Referred Journals

Thomas K. Matonyei1, Beatriz A. Barros, RobertaG. N.Guimaraes, Evans O. Ouma, Reuben K. Cheprot, Leandro C.Apolinário, Dickson O. Ligeyo, Marcella B. R. Costa,  Beatrice A.Were, Peter O. Kisinyo, Augustino O. Onkware, Roberto W. Noda, Samuel O. Gudu, Jurandir V. Magalhaes & Claudia T.Guimaraes (2020). Aluminum tolerance mechanisms in Kenyan maize germplasm are independent from the citrate transporter ZmMATE1. Scientific Report 10, 7320 (2020). https://doi.org/10.1038/s41598-020-64107-z

P. O. Kisinyo, P.A. Opala and S. O. Gudu (2019). Response of Sorghum (Sorghum bicolor (L.) Munch) to organic and inorganic fertilizers on Kenyan lower midlands acid soil. International Journal of Plant and Soil Science. 28(1): 1-8. ISSN: 2320-7035. DOI: 10.9734/IJPSS/2019/v28i130099.

Edwin Kiprono Rotich and Peter Oloo Kisinyo (2018). Influence of Cropping System and Residue Management on Selected Soil Chemical Properties. Advances in Research. Vo. 13(4) 1-8. ISSN: 2348-0394, NLM DOI: 101666096.

Matonyei, T. K.,  Sirmah P.K.,  Sitienei A.J.,Ouma, E.O, Ligeyo, D. O., Cheprot, R.K., Maritim K., Were,  B. A., Kisinyo, P. O., Gudu, S.O., Magalhaes J.V., Guimaraes, C.T. and Kochian L.V. (2017). THE EXPRESSION OF ZmMATE1 GENE AT SEMINAL ROOT TIP DOES NOT EXPLAIN ALUMINUM TOXICITY TOLERANCE IN A KENYAN  MAIZE BREEDING LINE. International Journal of Scientific Research and Innovative Technology ISSN: 2313-3759 Vol. 4 No. 3,  2017

Kisinyo Peter Oloo and Palapala Valerie Adema (2016). Maize Response to Micro Dose Inorganic Inputs on an Acid Smallholder Farm in Kenyan Lower Midland. Journal of Agricultural Science and Food Technology. Vol. 2(8), 125-132. 

Kisinyo P.O. (2016). Effect of lime and phosphorus fertilizer on soil chemistry and maize seedlings performance on Kenyan acid soils.    Sky Journal of Agricultural Research. Vol. 5(6): 097 – 106.

Nyamolo M. A., Palapala V. A. and Kisinyo P. O. (2016). Effect of Water logging on physio-chemical characteristics in maize.  Sky Journal of Agricultural Research. Vol. 5(6): 129-138

Kisinyo Peter Oloo (2016). Tobacco Cultivation Effects on Soil Fertility and Heavy Metals Concentration on Smallholder Farms in Western Kenya. Journal of Agricultural Science and Food Technology Vol. 2 (5): 75-79. ISSN: 2465-7522. http://pearlresearchjournals.org/journals/jasft/index.html

Kisinyo Peter Oloo (2016). Phosphate Fertilizer Sources and Use in Africa: Challenges and Opportunities.  Advances in Research 7(4): 1-9. DOI: 10.9734/AIR/2016/26171.

Kisinyo Peter Oloo (2016). Long term effects of lime and phosphorus application on maize productivity in an acid soil of Uasin Gishu County, Kenya. Sky Journal of Agricultural Research. Vol. 5(3): 048 – 055.  http://www.skyjournals.org/SJAR ISSN 2315-8751 ©2016 Sky Journals

Kisinyo Peter Oloo (2016). Maize Response to Organic and Inorganic Soil Amendments Grown Under Tropical Acidic Soil of Kenya. Journal of Agricultural Science and Food Technology Vol. 2 (3):35-40. ISSN: 2465-7522. http://pearlresearchjournals.org/journals/jasft/index.html

Ksinyo, P.A. Opala, S.O. Gudu and C.O. Othieno (2015). Micro-Dosing of Inorganic Inputs on Maize Production on an Acid Soil in Kenya: An Agronomic and Economic Evaluation.  American Journal of Experimental Agriculture, Vol. 9(3): 1-9. ISSN: 2231-0606. DOI: 10.9734/AJEA/2015/17984.

Peter Asbon Opala, Peter Oloo Kisinyo and Robert Orangi Nyambati (2015). Effects of Tithonia diversifolia, farmyard manure and urea, and phosphate fertiliser application methods on maize yieldsin western Kenya. Journal of Agriculture and Rural Development in the Tropics and Subtropics. 116 (1): 1-9. urn:nbn:de:hebis:34-2015011347180 ISSN: 2363-6033

P. O. Kisinyo, P.A Opala, S.O. Gudu, V. Palapala,  C.O. Othieno and E. Ouma (2015). Micro Dosing of Lime, Phosphorus and Nitrogen Fertilizers Effects on Maize Performance on an Acid Soil in Kenya. Sustainable Agriculture Research Vol. 4 (2): 21-30. Doi:10.5539/sar.v4n2p21. ISSN 1927-050X E-ISSN 1927-0518.

O. Kodiago, A. O. Onkware, S. O. Gudu, V. A. Palapala and P. O. Kisinyo (2015). Response of Leucaena leucocephala (Lam.) De Wit (Leucaena) Provenances to Aluminium in Potted Soil Experiment. International Journal of Plant and Soil Science. Vol. 7(2): 91-101. DOI: 10.9734/IJPSS/2015/14704

Kisinyo P. O., Opala P. A., Gudu S. O., Othieno C. O., Okalebo J. R., Palapala V. and Otinga A. N. (2014). Recent advances towards understanding and managing Kenyan acid soils for improved crop production.   African Journal of Agricultural Research, Vol.9 (31): 2397-2408. DOI:10.5897/AJAR2013.8359.

P. O.  Kisinyo, C. O. Othieno,  S.O. Gudu, J.R. Okalebo, P.A. Opala,  W.K. Ng’etich R.O. Nyambati, E.O. Ouma, J. J. Agalo, S.J. Kebeney, E. J.  Too, J.A, Kisinyo and W.R. Opile (2014). Immediate and Residual Effects of Lime and Phosphorus Fertilizer on Soil Acidity and Maize Production in Western Kenya. Experimental Agriculture, Vol.  50 (1): 128–143, Doi: 10.1017/S0014479713000318.

Emilly Jepkosgesi Too, Beatrice Ang’iyo Were, Augustino Osoro Onkware, Justin Hadson Ringo, Peter Kisinyo, Anders S. Carlsson, Evans Ouma Mulata Galeta and Samuel Gudu (2014). Response of selected sorghum (Sorghum bicolor L. Moench) germplasm to aluminium stress.  African Journal of Agricultural Research, Vol. 9(21): 1651- 1662, DOI: 10.5897/AJAR213.779.

D.O. Ligeyo, E. Ouma, S.Gudu, P. O. Kisinyo, T. Matonyei, J.R. Okalebo and C.O. Othieno (2014). Response of maize top cross hybrids to low phosphorus acid soils in Western Kenya. East. African Agriculture and Forestry. Journal. Vol. 80 (1), 25-30.

P. A. Opala, R. O. Nyambati and P. O. Kisinyo (2014). Response of Maize to Organic and Inorganic Sources of Nutrients in Acid Soils of Kenya. American Journal of Experimental Agriculture, 4(6): 713-723.

E. K. Rotich, J. R. Okalebo, W. K. Ng’etich,  C.O. Othieno and P. O. Kisinyo (2013). Effect of crop management system and residue on soil chemical changes (pH, soil N, organic carbon and available soil P) on ferralsols in western Kenya. African Journal of Education, Science and Technology. Nov/Dec, Vol. 1(3): 231-242. 

P. O. Kisinyo, C. O. Othieno, S.O. Gudu, J. R. Okalebo, P. A. Opala, J. K Maghanga, W. K. Ng’etich, J. J. Agalo, R.W. Opile, J. A. Kisinyo & B. O. Ogola (2013).  Phosphorus Sorption and Lime Requirements of Maize Growing Acids Soil of Kenya. Sustainable Agriculture Research. Vol. 2(2): 116-123. doi:10.5539/sar.v2n2p116 URL: http://dx.doi.org/10.5539/sar.v2n2p116.

Ouma Evans, Ligeyo Dickson, Matonyei Thomas, Were Beatrice, Agalo Joyce, Too Emily, Onkware Augustino, Gudu Samuel, Kisinyo Peter and Philip Nyangueso (2013). Enhancing maize grain yield in acid soils of western Kenya using aluminium tolerant germplasm. Journal of Agricultural Science and Technology, Vol. 3: 33-46

Justin Maghanga, John Kituyi, Kisinyo Peter Oloo and Wilson Ng’etich (2013). Impact of nitrogen fertilizer applications on surface water nitrate levels within a Kenyan tea plantation. Journal of Chemistry. Vol. 2013: 1- 4.  Article 196516. http://dx.doi/10.1155/2013/196516.

P. O. Kisinyo, S.O. Gudu, C.O. Othieno, J.R. Okalebo, P.A. Opala, J.K. Maghanga, J.J. Agalo, W.K. Ng’etich, J.A. Kisinyo, R.J. Osiyo,  A.O, Nekesa, E.T. Makatiani, D.W. Odee and B.O. Ogola (2012).  Effects of lime, phosphorus and rhizobia on Sesbania sesban performance in a western Kenyan acid soil. African Journal of Agricultural Research Vol. 7(18): 2800-2809, DOI: 10.5897/AJAR11.1450

Maghanga K. Justin, Kituyi L.  John, Segor K.  Fred and Kisinyo O. Peter. (2012). Comparison of soil phosphorous extraction by Olsen and double acid methods in acid soils of Western Kenya. East African Journal of Pure and Applied Science Vol. 2 (1): 1-5.

Ouma Evans, Ligeyo Dickson, Matonyei Thomas, Were Beatrice, Agalo Joyce, Too Emily, Onkware Augustino, Gudu Samuel, Kisinyo Peter, Okalebo John and Othieno Caleb (2012). Development of maize single cross hybrids for tolerance to low phosphorus. African Journal of Plant Science Vol. 6(14), pp. 394-402, http://www.academicjournals.org/AJPS. DOI: 0.5897/AJPS12.134.

P.O. Kisinyo, W.K. Ng’etich, C.O. Othieno, J.R. Okalebo and W.R. Opile, (2011). Phosphorus depletion – should the ACP countries be concerned? What are the current issues for future research and policy? http://knowledge.cta.int/en/Dossiers/S-T-Issues-in-Perspective/Phosphorus-depletion/Articles/. Published online June 2011.

P. A. Opala J. R. Okalebo C. O. Othieno, P. Kisinyo (2010). Effect of organic and inorganic phosphorus sources on maize yields in an acid soil in western Kenya. Nutr Cycl Agroecosyst, 86:317 -329, DOI 10.1007/s10705-009-9294-3.

Kisinyo Peter, Gudu Samuel, Othieno Caleb, Okalebo John, Ochuodho Julius, Agalo Joyce, Ng’etich Wilson, Opala Peter,  Maghanga Justin, Osiyo Richard and Ligeyo Dickson (2009). Residual effects of lime and phosphorus application on soil and maize (Zea mays L.) performance in a Kenyan highlands acid soil.  Journal of Agriculture, Pure and Applied Science and Technology, 3: 1-10.

S.O. Gudu, P. O. Kisinyo, E.T. Makatiani, D.W. Odee, J.F.O. Esegu, S.A.O. Shamchama, C.O. Othieno, J.R. Okalebo, R.J. Osiyo and J. O. Owuoche (2009). Screening of sesbania for tolerance to aluminum toxicity and symbiotic effectiveness with acid tolerant rhizobia strains in Western Kenya acid soil. Expl. Agric., 45:417-427 (doi: 10.1017/S0014479709990044).

P.A. Opala, C.O. Othieno J.R. Okalebo, and P.O. Kisinyo (2009). Effects of combining organic materials with inorganic phosphorus sources on maize yield and financial benefits in western Kenya. Expl. Agric., 46; 23-34 (doi: 10.1017/S0014479709990457).

Okinda P. O., Obanda M., McLean G. and Kisinyo P. O.  (1999). Fermentability variations of popular clones from Nandi Hills, Kenya.  Tea vol. 20(1), 5-11.

Book Chapters

Nyamai, Daniel Odinde, Obonyo Collins Otieno, Aucha, James and Kisinyo, Peter Oloo (2017). Policy Framework and Public-Private Partnerships for Agribusiness Development in Africa. In: John A.F. Obiri, Marie-Francoise Driver, Jonathan C. Onyekwelu, Joseph G. Akpoko, Brinda Ramasawmy, Aissetou Drame-Yaye. Agribusiness in Africa – A contextualized manual for tertiary institutions and development practioners. ANAFE, Nairobi-Kenya, pp 154-173

B. Ahamadou, P. O. Kisinyo, P. A. Opala, G.A. Damot, I.I. Mudita and D. Nyadanu (2017). Managing Risks Associated with Soil Degradation for Sustainable Crop Production in Africa. In: John A.F. Obiri, Marie-Francoise Driver, Jonathan C. Onyekwelu, Joseph G. Akpoko, Brinda Ramasawmy, Aissetou Drame-Yaye. Agricultural Risk Management in Africa – A contextualized manual for tertiary institutions and development practioners. ANAFE, Nairobi-Kenya, pp 64-93.

Okalebo, J. R., C. O. Othieno, S. O. Gudu, P. L. Woomer, N. K. Karanja, C. Serrem, H. K. Maritim, N. Sanginga, A. Bationo, R. M. Muasya, A. O. Esilaba, A. Adesina, P. O. Kisinyo, A. O. Nekesa, M. N. Thuita and B. Waswa. (2011). The Africa Green Revolution and the Role of Partnerships. In: Bationo, A., B. Waswa, J. M. Okeyo, F. Maina, J. Kihara (Eds) Innovations as key to Revolution: Exploring the Scientific Facts. Springer +Business Media. pp 71-82.

Okalebo, J. R., C. O. Othieno, S. O. Gudu, P. L. Woomer, N. K. Karanja, C. Serrem, H. K. Maritim, N. Sanginga, A. Bationo, R. M. Muasya, A. O. Esilaba, A. Adesina, P. O. Kisinyo, A. O. Nekesa, M. N. Thuita and B. Waswa. (2011). The Africa Green Revolution and the Role of Partnerships. In: Bationo, A., B. Waswa, J. m. Okeyo, F. Maina, J. Kihara (Eds) Innovations as key to Revolution: Exploring the Scientific Facts. Springer +Business Media. pp 71-82.

Serem A.K., Martim H.K, Kipsat M., Kisinyo P.  and Nyangueso P. (2007). Market integration and conduct analysis: An application of cattle markets in Uasin Gishu District, Kenya. In: Bationo., Waswa B., Kihara J. and Kimetu J. Advances in Soil Fertility Management in Sub-Saharan Africa: Challenges and Opportunities, pp 1013-1018.

CONFERENCE PROCEEDINGS

Kisinyo Peter Oloo, Palapala Valerie Ademba and Opala Peter Asbsorn (2016). Effects of micro dose inorganic farm inputs on maize performance on a western Kenya acid soil. 3rd International Interdisciplinary Conference (IIC) on Innovative Research for Sustainable Development. 7-9th September, 2016. University of Eldoret, Kenya. Pp. 147-152.

Ojala, D.O., Nyangweso P.M., Mudaki J.S., Zablon Evusa, Chacha, J., Kisinyo P. and Kiano E.K. (2014).  Socio Economic Factors Influencing Smallholder Maize Farming In Migori County, Kenya, 10th Moi University Annual International Conference, Moi University,  Kenya. 23rd – 27th September, 2014, pp. 226 – 239. ISBN: 9966-854-77-0

A musala G., Nyangweso P.M, Gudu S., Mose J.I, Inyanje L., Onkware A., Ochuodho J., Ouma E., Kisinyo P., MugalavaiV., Okalebo J.R, Othieno C. O, Were B.A. (2012).  Adoption of Drought Tolerant Sorghum in Western Kenya, The 8th African Farm Management Association Congress, Nairobi, Kenya, 25 – 29th November, 2012, pp. 87 – 97.

Gudu S, Ouma E., Kisinyo P.O., Agalo J., Onkware A.,and Were B.A. (2012). Enhancing maize grain yield in acid soils using aluminium tolerant germplasm. In: V.R. Ramakrishna Parama, A. Sathish, C.A. Srinivasamurthy, K. Sudhir, S.C. Kotur, Leon V. Kochian and N.B. Prakash (Eds). 8th International Symposium on Plant-Soil Interactions at Low pH. University of Agricultural Sciences, GKVK, Bengaluru, India, 18th – 22nd October, 2012, pp 94-95.

Gudu, S., Onkware Osoro, A., Were Angiyo, B., Too Jepkosgei, E., Ochuodho Onyango, J., Okalebo, J.R., Othieno Obiero, C. and Kisinyo Oloo, P.  (2012). Improvement of sorghum for tolerance to stress and increased production and utilisation in Kenya. Proceedings of the Third RUFORUM Biennial Regional Conference, Entebbe, Uganda. 24 – 28th September 2012, 1369-1373. (ISSN: 1993-8462).

Pamela A. Obura, Darrell G. Schulze, Robert Okalebo, Caleb Othieno, Peter Kisinyo,  Cliff Johnston and Kirin Rana (2010). Similarities and differences in the Chemistry and mineralogy of some acid soils from maize growing regions of Kenya, Uganda, Tanzania, and Brazil.  Australian Clay Minerals Conference August 2010. Brisbane, Australia.

Okalebo, J. R., Othieno, C. O., Gudu, S., Ochuodho, J., Mbakaya, D., Ngetich, W., Serem, C., Kisinyo, P. O., Nekesa, A. O., Njoroge, R., Kebeney, S., Amar, B. and Maghanga, J. (2010). Towards Food Security: Insight to Current Activities to Restore Soil Fertility in Western Kenya.  Proceedings of the 6th Annual international  Moi  University Conference, 7- 11th September, 2010, pp. 37 -52

Omenyo, V. O., Kisinyo, P. O. and Maghanga, J. K. (2010). Effect of Lime and Phosphorous Application on Soil Properties and Early Growth of Soybean in Acid Soils of Uasin Gishu District, Kenya. Proceedings of the 6th Annual international Moi University Conference, 7- 11th September, 2010, pp. 54-63.

Kebeney, S. J., Okalebo, J. R., Othieno, C. O., Ng‘etich, W. K., Serrem, C. K., Kisinyo, P. 0. and Langat, B. K. ( 2010). Soya Bean (Glycine max L.) Response to Two Sources of Phosphorus on Acidic Soils of Kapsabet, Kenya. Proceedings of the 6th Annual international  Moi  University Conference, 7- 11th September, 2010, pp. 80-89

Chepng‘eno, W., Langat, B. K., Kisinyo, P., Ngéno, V. K. and Kebenei, J. S. (2010). Marketing Channels for Smallholder Tea Leaf in Nandi North District in a Post Liberalization. Proceedings of the 6th Annual international  Moi  University Conference, 7- 11th September, 2010, pp. 201-207

J.R. Okalebo, A.O. Nekesa, K.W.Ndungu, C.O. Othieno, B.Jama, M. Tayeb Mrabet, D. Mbakaya, S.O. Gudu, P. O. Kisinyo, M. Bekunda, W. Ngetich, A. Ekwamu, C. Serrem, and A.O. Osundwa, ( 2009). Working with smallholder farmers in western Kenya to mitigate soil fertility depletion: A new practicaland collaborative approach. Presented at the 9th African Crop Science Conference, 28 Sept, – 1 Oct, 2009. Cape Town, South Africa.

J.R. Okalebo, P.L Woomer, C.O. Othieno,  S.O. Gudu, A.O. Nekesa, P. O Kisinyo, W. Ngetich, C. Serem, D. Lesueur, P. Pypers, B. Vanlauwe, R. Merckx, J. Bashir, D. Mbakaya , B. Amar, A. Ekwamu, M. Bekunda M.A. Osundwa and J. Ojiem, 2009. Some current efforts to raise maize and legume yields through expanded fertilizer and agricultural lime applications on acid soils of western Kenya. Presented at the 26th Conference of Soil Sci. Soc. of East Africa, 7-11th Dec, 2009, Arusha, Tanzania.

D.O. Ligeyo , S. Gudu , O.M. Odongo, P.O. Kisinyo, J.R. Okalebo and C.O. Othieno, 2008.  A Review of Maize Breeding for Acid and Low Phosphrus Soils in Kenya.  Proceedings of the Conference on Crop Production in Acid Soils, Sirikwa Hotel, Eldoret, Kenya, June 29th – 4th July 2008.

J.R. Okalebo, S.O. Gudu, C.O. Othieno, P.O. Kisinyo, D.O. Ligeyo, P.A. Obura, J.Agalo, A.O. Nekesa, A. Onkware, G. Dangasuk, J. Ochuodho, R.M. Muasya and B. Were, 2008. Challenges towards the Success of African Green Revolution with Reference to East Africa Evolution.  Proceedings of the Conference on Crop Production in Acid Soils, Sirikwa Hotel, Eldoret, Kenya, June 29th – 4th July 2008.

Kisinyo P.O., Gudu S.O., Othieno C.O., Okalebo J.R., Ochuodho J, Agalo  J. and Ligeyo D.O. 2008. Residual Effect on Lime and Phosphorus Application on Soil and Maize Performance in Acid Soils of The Rift Valley Highlands of Kenya.  Proceedings of the Conference on Crop Production in Acid Soils, Sirikwa Hotel, Eldoret, Kenya, June 29th – 4th July 2008.

Kipsat M.J.,  Maritim H.K., Korir M.K., Serem A.K., Nyangueso, Okalebo J. R., Kisinyo P.O and Oyasi., 2007. The effect of soil conservation on optimum cropping patterns in Kericho District, Kenya. Proceedings of the 16th International Farm Management Association. Environment – Global Resource, 223 – 231.

P.O. Kisinyo, C.O. Othieno, J. R, Okalebo, P. Opala, R.J. Osiyo, M. Kipsat. A. Serem and J.K. Maghanga 2006.  Combined use of organic and inorganic fertilizers to replenish nitrogen and phosphorus in smallholder farmers in tropical Africa.  Proceedings of the 23rd Soil Science Society of East Africa. Masaka Uganda 20th – 24th November 2006. pp 17-21

Osiyo R.J., Okalebo J. R, Othieno C.O., Kisinyo P.O.  and Opala P., 2006. Potential for restoring nitrogen: Role of tillage and crop residues incorporation in smallholder farming systems.  Proceedings of the 23rd Soil Science Society of East Africa. Masaka Uganda 20th – 24th November 2006. pp 37-42.

Osiyo R.J., Okalebo J. R, Othieno C.O, Kisinyo P.O.  and Opala P., 2006. Effects of organic materials on Mijingu phosphate rock in acid soil of western Kenya. Proceedings of the 23rd Soil Science Society of East Africa. Masaka Uganda 20th – 24th November 2006. pp 43-45

International Symposium on Phosphorus Dynamics in Soil Plant Continuum. Uberlandia, Brazil (14  –19th May 2006), pp 157-158.Gudu S., Okalebo J. R., Othieno C.O., Obura P.A., Ligeyo, D.O., Santana D.P., Schulze D., and Kisinyo P.O.,  2006. Maize response to phosphorus and lime on maize on marginal fertility soils of Western Kenya. Proceedings of the 3rd International Symposium on Phosphorus Dynamics in Soil Plant Continuum. Uberlandia, Brazil (14 –19th May 2006), pp 157-158.

Kisinyo P.O., Othieno C.O, Okalebo J.R., Kipsat M.J., Serem A.K. and Obiero D.O., 2005. Effects of lime and phosphorus application on early growth of leucaena in acid soils. Proceedings of the 7th African Crop Science Conference, Vol. 7:1233-1236.

Okalebo J. R., Othieno C.O., Maritim H.K., Iruria D.M., Kipsat M.J., Kisinyo P.O., Kimenye L., Mukwana E.J., Bationo A., Ekwamu A., Njoroge R.K., Thuita M., Nekesa A. O. and Ruto E.C,   2005. Management of soil fertility in western Kenya: experience working with smallholder farmers. The 7th African Crop Science Conference Proceedings, Vol. 7: 1210-1224.

Omunyin E.M., Shibonje D.A., Okalebo J.R. and Kisinyo P., 2005.  Effects of grass ash on black aphids and yields nigh shade. The 7th African Crop Science Conference Proceedings, Vol. 7(1), 371-376.

Kipsat M.J.,  Maritim H.K., ., Serem A.K., Korir M.K., Nyangueso P.M., Iruria D.K., Okalebo J. R., , Kisinyo P.O., Omollo P.O. and Anjichi V.E., 2005. Technical efficiency in smallholder maize production in Uasin Gishu District, Kenya .The 7th African Crop Science Conference Proceedings, Vol. 7: 979-981.

Kisinyo, P. O. and Othieno C. O., 2003.  The role of arbuscular mycorrhiza in phosphorus acquisition in tropical agriculture – A review. The 6th African Crop Science Conference Proceedings, Vol. 6, 416-423.

Kisinyo, P. O. and Okalebo J.R., 2003.  A review of laboratory methods used to extract soil available phosphorus. Proceedings of the 21st Conference of the Soil Science Society of East Africa, Eldoret Kenya Uganda (1st –5th Dec. 2003), pp 333-41.

Kisinyo P. O. and Othieno C. O., 2002.  The role of food legumes in biological nitrogen fixation in smallholder farms in tropical Africa. Proceedings of the 20th Conference of the Soil Science Society of East Africa, Mable, Uganda, 2nd – 6th Dec. 2002, pp 153-158.