Onyango JW, Kheng LH, Miriti JM, Sijali IV. Use of aquacrop model to predict maize yields under depleted rainfall and elevated temperature in a semi-arid environment in Kenya. Paper presented at the 10th Kenya meteorological society conference held between 20th and 23rd September 2011 at Mombasa Beach Hotel.

Wamari JO, Kheng LH, Miriti JM, Sijali IV and Esilaba AO. Calibration of aquacrop model and its use in prediction of maize yields under depleted rainfall and elevated temperature in a semi-arid environment. Paper presented at the 26th Soil science society of East Africa conference held from 21 - 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Muya EM, Radiro PM, Kahiga PM, Obanyi S and Ngutu M. Translating the Kalacha irrigation design into efficient system for improved productivity of saline-sodic soils in Kenya arid and semi-arid lands. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Muya EM, Obanyi S, Radiro PM, Kahiga PM, Bulle H, Ngutu M, Kuria S and Okoti M. The potentials for investment in mountain and oasis areas of Kenya arid and semi-arid lands for improved productivity of saline-sodic soils. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Muya EM, Radiro PM, Kahiga PM, Obanyi S and Ngutu M. The Roadmap to sustainable Agriculture in Mountain and Oasis areas of Kenya Arid and Semi-Arid Lands; Potential for Investment. Paper presented at the KASAL end of programme conference and Exhibition, KARI Headquarters, 9-11th August, 2011.

Kibunja CN, Irambu EM, Maina FW, Gicheru PT, Heesman H and Van Beek C. 2011. Spatial variability of soil organic matter across farmers’ fields and its effect on maize productivity in different agro-ecological zones. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Kathuku AN, Esilaba AO, Kibunja CN, Kamoni PT, Maingi PM, Okoth P. 2011. Is Integrated Soil Fertility Management Information available to End Users in Kenya? A review. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Kibunja CN. 2011. Project experience in action research. pp. 6-8. In FW Maina, CN Kibunja, D Onduru, E Irambu, PT Gicheru, H Heesman and C van Beek (eds). Stakeholders’ perspective in managing efficient nutrient supply: Proceedings of ENSET stakeholders’ workshop held in Embu, Kenya, 14 - 15th September 2011, pp.6 - 8.

Kibunja CN, Mwaura FB and Mugendi DN. 2011. Long-term land management effects on soil microbial diversity and soil properties in a maize-bean rotation at Kabete, Kenya. 117 – 125.  In Mugendi DN, Okoba B, Maina FW, Macharia PN, Kibunja C, Gicheru PT, Kironchi G and Mucheru M. 2011. eds. Improved Livelihoods through Applied Soil Science. Proceedings of the 21st Soil Science Society of East Africa Annual Conference on, 26 - 30th November, 2007, Embu, Kenya. Published by Soil Science Society of East Africa, KARI.

Makokha SN and Kamoni PT. Factor relationships in soil degradation: A case study of Gucha District, Kenya. Poster presented at the VicRes Biennial forum 9-13th October, 2011 at Muyonyo Speke Resort, Uganda.

Makokha SN and Kamoni PT. Factor relationships in soil degradation: A case study of Gucha District, Kenya. Paper presented at the VicRes NRM Workshop, 30th October - 2nd November, 2011 at Methodist Guest House, Lavington, Nairobi.

Kamoni PT and Makokha SN. Effect of organic manures and inorganic fertilizers on maize yields in Sameta and Ogembo Divisions, Gucha District, Kenya. Paper presented at the VicRes NRM Workshop, 30th October - 2nd November, 2011 at Methodist Guest house, Lavington, Nairobi.

Muya EM, Radiro PM, Kahiga P, Obanyi S and Ngutu M. Translating the Kalacha irrigation design into efficient system for improved productivity of saline-sodic soils in Kenya arid and semi-arid lands. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Muya EM, Obanyi S, Radiro PM, Kahiga PM, Bulle H, Ngutu M and Kuria S. The potentials for investments in Mountains and Oasis areas of Kenya arid and semi-arid lands. Paper presented at the 26th Soil science society of East Africa conference held in from 21 – 24 November 2011 at Source of the Nile Hotel, Jinja, Uganda.

Nyamai M, Mati BM, Home PG, Ondogo B, Wanjogu R and Thuranira EG. Towards improving crop and water productivity in basin rice cultivation in the Mwea Irrigation Scheme of Kenya: A role for system of rice intensification (SRI). Paper presented at the 6th JKUAT Scientific, Technological and Industrialization Conference held on 16th – 18th November, 2011 held at JKUAT, Juja.

Kinyua ZM, Bararyenya A, Schulte-Geldermann E, Obura BO, Kashaija IN, Tindimubona S, Opio F, Oyena D, Rwomushana I, Muriithi WM, Kinoti J, Namugga P, Kimoone G, Inamahoro M, Niko N, and Ndayihanzamaso P. 2011. Overcoming seed potato quality constraints to tackle food insecurity and poverty in eastern and central Africa in the 21st Century. Paper presented during the 1st ASARECA General Assembly, 14-16 December 2011; Entebbe, Uganda.

Muriithi CW, Kinyua ZM, Kimani AW, Kinoti J and Kariuki JM. 2011. Nativo SC300, a product for controlling rice blast disease in Kenya. A paper presented at Egerton University International Conference, 21-23 Sept 2011.

Kinyua ZM, Ochieng JAW and Wasilwa LA. 2011. The Crop Health Programme in KARI. A poster prepared for a workshop to align and refine crop health research and services; October 26 -28, 2011; KARI NARL Kabete, Nairobi, Kenya.

Otipa MJ, Waiganjo M,  Ateka E,  Mamati E, Miano D, Amata  R, Wasilwa L, Mureithi J,   Erbaugh M and Qui F. 2011. Importance of virus diagnosis in Passion fruit production systems. Paper presented at HAK conference at Pwani University on 6-9 December 2011. 

Otipa MJ, Ateka E, Miano D, Mamati E, Amata R, Waiganjo M, Mureithi JM, Erbaugh, M, Zhang X and Qui F. Factors contributing to high incidences of passion fruit virus in passion fruit production systems in Kenya. Paper presented at the African Crop Science Congress, Maputo, Mozambique 10-14 October, 2011.

Otipa MJ,  Ateka J, Mamati E, Miano D, Amata R, Waiganjo M,  Wasilwa L, Mureithi J,  Erbaugh M and Qui F. Passion fruit viruses: Current Status in production systems in Kenya. Paper presented at JKUAT Conference in 16 - 18 November 2011. Wasilwa,L.,  Ngugi G, Chege J, Kwambai T, Omari F, Masinde A, Rashid M, Otipa M, Amata R, and Nyamongo D. 2011. Commercialization of underutilized/indigenous Fruit in Kenya from Research to the market place. Poster  presented on 8th  August 2011during Dr Jill Biden’s visit KARI-Kabete.

Wasilwa L, Ngugi G, Chege J, Kwambai T, Omari F, Masinde A, Gatambia E, Rashid M. Otipa M, Amata, R. Chegeh B. Nyamongo D and Wasilwa V. Commercialization of Guava in Kenya from research to the market place. Poster presented during Dr Jill Biden’s visit KARI-Kabete on 8th August 2011.