Browsing by Author "Kamoni, P.T."
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Item Detailed soil survey of a part of quarantine Farm - National Husbandry Research Station Naivasha Nakuru District(Ministry Of Agriculture, 1988) Kamoni, P.T.Quarantine farm belongs to National animal husbandry research station Naivasha.It measures appromately 48 ha. The survey was carried out after a request by the station Director Mr. Ka.au. The purpose of the survey was to evaluate the suitability of the soils for growing irrigated vegetables. Fieldwork was excuted from 8-12-86 to 19-12-86.Item Kenya Soil Survey Annual Report 2006(Kenya Agricultural Research Institute, 2006) Kenya Agricultural Research Institute; Macharia, P.N; Wanjogu, S.N.; Kamoni, P.T.; Kenya Agricultural Research InstituteThis annual report gives a general overview of the research work and other services accomplished by the section in the year 2006. It is divided into two parts. Part I gives a general overview which covers a summary of the technical work, staff matters, donors financial assistance, collaboration with other programs and institutions, conferences, meetings and workshops attended and publications produced during the year. Part II covers technical and research work executed. This report was prepared through joint effort of the technical staff from all the units and I sincerely convey to them my deepest gratitude. KSS in collaboration with other NARL sections, KARI Centres and other institutions or on it own accomplished or continued with the following research/work during the year. * Provided biophysical data to the GWC project as per the agreed Terms of Reference. * Reconnaissance Soil Survey of River Yala Catchment Integrated * Reconnaissance Soil Survey of River Kibos, Oroba and Nyando Catchments. * Sustainable Land and Environmental Management in the Proposed Kyeemwea Irrigation project, Iuani Location, Kaiti Division, Makueni District. * Sustainable Land Management in Kiambundu Smallholder Irrigation Scheme, Mbeere District. * Sustainable Land Management in Kiarukungu Smallholder Irrigation Scheme, Kirinyaga District. * Sustainable Land Management in Kyeekolo Smallholder Irrigation Scheme, Makueni District. * Sustainable Land Management in Kisioki Smallholder Irrigation Scheme, Kajiado District. * The soils of Oserian farm - Naivasha, Nakuru District. * Soil characteristics, classification, management and land use of selected soils in KenyaItem Potassium Nutrient Status and Management in Kenyan Soils for Increased Productivity(East African Agricultural and Forestry Journal, 2022) Kathuku-Gitonga, A.N.; Esilaba, A.O.; Mangale, N.; Wasilwa, L.; Okoti, M.; Nyongesa, D.; Kamoni, P.T.; Waruru, B.K.; Muya, E.M.; Thuranira, E.; Mutisya, D.; African Plant Nutrition Institute (APNI) ; Kenya Agricultural and Livestock Research Organization (KALRO), Kabete & KatumaniNitrogen, phosphorus and potassium are regarded as the main basic nutrients necessary for plant growth and production and their functions are interrelated. Potassium is necessary for regulation of plant cells, for the production of proteins and enzymes. It improves crop's disease and pests' resistance, and it increases crop yield and plays a significant role in enhancing crop quality. Potassium deficiency inhibits protein production even when nitrogen is abundant. The objective of the study was to determine status of potassium in selected Kenyan soils and responses to applied potassium fertilizers. Studies were carried out in Kenya through laboratory soil analysis, meta-data analysis and fertilizer response studies. Soils were collected in the trial sites and analyzed using wet chemistry method. For meta-analysis, published materials were collected, collated, digitized and harmonized. Benefit cost ratios were calculated for each technology to ascertain its profitability. The soil analysis results showed that potassium, nitrogen, organic carbon and zinc were deficient. The meta-analysis results showed that, limited research studies had been conducted on potassium in Eastern, Coast and Rift Valley regions of Kenya. The most economical potassium responses were recorded under application of 60 kg K/ha, although the yields were not profitable. However, the fertilizer response studies showed increased crop yields on addition of potassium fertilizer up to 40 kg K/ha. Hence lower rates of potassium (less than or equal to 40 kg K/ha) are recommended to offset and maintain adequate potassium levels in the soil for optimal crop production and income. Nevertheless, soil analysis is key before any fertilizers are added to soils.
