Browsing by Author "Ketiem, P."
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Item Effect of Tillage, Liming, and Cropping Systems on Maize Yields in Different Agroecological Zones in Kenya(East African Agricultural and Forestry Journal, 2023) Githunguri, C.M.; Esilaba, A.O.; Okoti, M.; Mutuma, E.; Miriti, J.; Nyongesa, D.; Thuranira, E.; Koech, M.; Mutoko, C.; Ndungu, K.; Ooro, P.; Ketiem, P.; Mwangi, H.; Woyengo, V.; Odendo, M.; Ashiono, G.; Kenya Agricultural and Livestock Research Organization(KALRO)Negative effects induced by climate change have contributed to reduced global yields of maize. There is therefore need to endow farmers with innovative and transformative climate smart agriculture technologies to urgently address food insecurity and the realities of climate change in cereal growing regions of Kenya. Technologies have been generated for improved maize and beans production and their impact has not been fully felt. In this study, technologies and innovations on tillage, liming and cropping systems that can improve maize and beans production were evaluated and demonstrated to farmers in different agro-ecological zones in Kenya with the aim of enhancing their adoption. Trials were established at KALRO-Njoro, KALRO-Kakamega, KALRO-Kitale, Baraton University, and Mabanga Agricultural Training Centre, in Nakuru, Kakamega, Trans-Nzoia, Nandi, and Bungoma Counties, respectively. The tillage treatments evaluated included conventional, tied ridges, minimum and zero tillage planted in plots applied with 2 t/ha of lime or without lime. The cropping systems evaluated were maize intercropped with beans or sole cropped maize. A split-split plot design with four replications was used. Results indicated that conventional, tied ridges, and minimum tillage produced higher (P<0.05) yields than the zero tillage with or without lime irrespective of the cropping system in Nakuru, Nandi and Trans-Nzoia Counties. In Nandi, Kakamega and Bungoma Counties, there were no differences (P>0.05) between the four tillage systems.Item Farm-Level Agricultural Resilience and Adaptation to Climate Change Extension Manual(Kenya Agricultural and Livestock Research Organization, 2019-12) Okoti, M.; Esilaba, A.O.; Ketiem, P.; Mangale, N.; Muli, B.M.; Nyongesa, D.; Otipa, M.; Mutisya, D.; Too, A.; Njiru, E.; Muthiani, E.; Finyange, P.; Ndanu, A.; Wasilwa, L.; Kenya Agricultural and Livestock Research OrganizationClimate change and variability is acknowledged as a global phenomenon with potentially far-reaching implications to many economic sectors. It is characterized by increased recurrence of droughts, floods, rainfall variability (pattern, timing and intensity), increased mean surface temperature and famine that threaten millions of people, crops and livestock systems. The developing countries and the poor in society are highly vulnerable to impacts of climate change despite the minimal contribution (less than 10%) to the annual global carbon dioxide emissions. The increasingly observed weather risks threaten the agricultural production systems and food security conditions for majority of population in Kenya. Farmers who largely practice subsistence farming for livelihoods are characterized by degraded soils, small farm sizes, and low crop yields. Therefore, sustaining farmers’ agricultural growth and minimizing climate related shocks is crucial in building farmers and food production system resilience. Agricultural adaptations to climate change need to be resilient to deal with stresses and disturbances. These adaptations can either be technological, institutional or policy interventions to help farmers build resilience to current and future climate related shocks as well as mitigating greenhouse gas (GHG) emissions.
