Browsing by Author "Wamicha, W.N."
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Item Application of the Common Measures concept on Sand Mineralogy of Some Tsavo Soils.(Ministry Of Agriculture, 1979) Wamicha, W.N.This study is a follow-up of the work done by siderius and Wamicha (1978). The main objective was to study the genesis of soil profiles 8.S Reflected by changes in sand Minerology, applying the common Measure concept.Item Detailed Soil Survey of Jomo Kenyatta College of Agriculture and Technology, Juja (Kiambu District)(Ministry of Agriculture, 1978) Muchena, F.N.; Wamicha, W.N.; Njoroge, C.R.N.; Ministry of AgricultureThis report describes the soil conditions of the proposed site for the Jomo Kenyatta College of Agriculture and Technology, Juja, Kiambu District. The detailed soil survey was carried out at the request of the Jomo Kenyatta Agricultural and Technical College Project Implementation Committee through Ministry of Agriculture. The survey area comprises approximately 205.8 hectares. The fieldwork was carried out / the period between 31st May and 14th June 1978, /in a topographical map of the proposed site did not exist at the time of the survey. Therefore a Survey of Kenya cadastral plan on scale 1:10,000 was used as the base map.Item Detailed Soil Survey of the Beef Research Station – Lanet (Nakuru District) 1980(Ministry of Agriculture, 1980) Ministry of Agriculture; Wamicha, W.N.; Gatahi, M.N.; Mungai, D.N.; Ministry of AgricultureThe report describes soil conditions of a part of the Lanet Beef Research Station. A detailed soil survey was carried out at the request of the Officer-in-Charge of the Station. The area surveyed is about 98.5 hectares. The fieldwork was carried out within 14 non-consecutive days in months of September and October 1978. The topographical map at scale 1:5,000 of Wanyonyi et al (1968) was used as a basemap.Item Environmental Impacts of Livestock-Wildlife Ranching in Laikipia District, Kenya(Animal Production Society of Kenya, 2001) Wakhungu, J.W.; Olukoye, G.A.; Wamicha, W.N.; Kinyamario, J.I.; Mwanje, J.I.; Kenyatta University; University of NairobiLivestock and wildlife ranching, either separately or as mixed enterprises are the main economic options in the semi-arid rangelands of Laikipia District. However, environmental impacts of these production systems in the commercial and group ranches are yet to be comprehensively evaluated. In this paper, wild and domestic herbivore biomass vis-a-vis the available vegetation biomass in the rangelands of Laikipia district are quantified. Aspects to consider in the quantification such as dynamics of herbivore biomass and their corresponding dry matter (DM) intake requirements, type of animal and stocking density, distribution and utilisation of vegetation biomass by herbivores in space and time are discussed.Item The major soils of the arid and semi-arid areas of Kenya in relation to soil and water conservation(Kenya Soil Survey, 0000) Mungai, D.M.,; Kenya Soil Survey; Utalii College; Kenya Agricultural Research InstituteIn this paper the arid and semi-arid areas of Kenya are defined in terms of the ratio. The arid and semiarid areas are those areas that have a rainfall over potential evaporation ratio (r/Eo) of less than 40%. These areas cover roughly 4S million hectares or 83% of the~ country. The major soils occurring in this area are described in terms of their susceptibility to erosion and conservation needs, particu1arly on grazing lands. The soils have been classified according to the FAO/Unenso Soil Map of the World Legena FAO, 1974). The paper also describes the various types of soil surveys that the Kenya Soil Survey has carried out in the arid and semi-arid areas of KenyaItem A Preliminary Investigation of the Soil Conditions of the Ithe Wa Gathoni Farm Langata (Nairobi) 1979(Ministry of Agriculture, 1979) Wamicha, W.N.; Gachene, C.K.K.; Ministry of Agriculture; Ministry of AgricultureThis report describes the soil conditions of the Ithe-w8.-Gathoni Farm. A site Evaluation survey was carried out on 18th April, 1979 at the request of the farm owner. The soil investigation was carried out in relation to the suitability of the area for rainfed horticultural crops. The field investigations were carried out using the farm plan (at scale 1:2,500) as the base map. Thirteen auger hole observations and one profile pit were described. Each horizon in the profile pit was sampled for physical end chemical analysis at the National Agricultural Laboratories, Nairobi. A composite topsoil sample was also collected around the profile pit for fertility analysis.Item The Sand Mineralogy of some Tsavo soils 1978(Ministry of Agriculture, 1978) Ministry of Agriculture; Siderius, W.; Wamicha, W.N.; Ministry of AgricultureSand mineralogical investigations 1) seek to find a relation between the soil material and the parent rock, 2) make an assessment of soil genesis, 3) evaluate the fertility of the soil as presented by the primary minerals. To gain insight in the sand mineralogy of some Tsavo soils a total of 33 samples were submitted by W. van Wijngaarden who surveyed the soil and vegetation in the area concerned. Of these 11 were taken from B-horizons, while the remaining 22 are samples from 5 5 soil profiles. The samples were examined by the authors and results will be incorporated in the Reconnaissance Soil Survey Report.Item The Sand Mineralogy of some Tsavo Soils Report, 1978(Ministry of Agriculture, 1978) Ministry of Agriculture; Siderius, W.; Wamicha, W.N.; Ministry of AgricultureSand mineralogical investigations 1) seek to find a relation between the soil material and the parent rock, 2) make an assessment of soil genesis, 3) evaluate the fertility of the soil as presented by the primary minerals. To gain insight in the sand mineralogy of some Tsavo soils a total of 33 samples were submitted by W. van Wijngaarden who surveyed the soil and vegetation in the area concerned. Of these 11 were taken from B-horizons, while the remaining 22 are samples from 5 5 soil profiles. The samples were examined by the authors and results will be incorporated in the Reconnaissance Soil Survey Report.
