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Search: au=Owuor, P.O.
Found: 73 Record 1-73

Periodical articleKebeney, S.J.; Kamau, D.M.; Othieno, C.O.; Ng'etich, W.K.; Owuor, P.O. (2010)
Changes in soil chemical properties and leaf nutrients content in tea due to nitrogen fertilizer rates and application intervals
Tea. Volume 31 #1. July. p. 22-37.

Periodical articleBore, J.K.; Masinde, P.W.; Kahangi, E.M.; Ng'etich, W.K.; Owuor, P.O. (2009)
Effects of water stress on growth and water relations of young grafted tea
Tea. Volume 30 #2. December. p. 11-23.

Periodical articleKamau, D.M.; Oenema, O.; Spiertz, H.; Owuor, P.O. (2009)
Changes in soil properties following conversion of forests into changes intensively managed camellia sinensis L. plantations along a chronosequence
Tea. Volume 30 #1. July. p. 42-53.

Periodical articleKamau, D.M.; Wanyoko, J.K.; Owuor, P.O. (2005)
Mature leaf nutrient levels as a diagnostic tool for making fertilizer recommendations in mature tea: the case of Clone BBK 35
Tea. Volume 26 #2. December. p. 57-69.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (2004)
Long term effects of rates and types of nitrogenous fertilizers in high yielding clone AHP S 5/10 Tea on; II). available soil Sulphur
Tea. Volume 25 #2. December. p. 32-37.

Periodical articleKavoi, M.M.; Oluoch-Kosura, Wallis; Owuor, P.O.; Siele, D.K. (2003)
Gender Analysis of Economic Efficiency in Smallholder Tea Production in Kenya
Abstract presentEastern Africa Journal of Rural Development. Volume 19 #1. p. 33-40.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K. (2002)
See this publicationMinimum tea hectarage hypothesis: the case of smallholder tea sub-sector in Kenya
Journal of Agriculture Science and Technology. Volume 4 #1. p. 1-14.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K. (2002)
Socio-economic factors influencing productivity levels of tea in Kenya: a probit analysis of smallholder sub-sector
Tea. Volume 23 #2. December. p. 72-80.

Periodical articleObanda, M.; Owuor, P.O.; Wekesa, H. (2002)
The influence of clone and plucking standards on the formation of black tea chemical and sensory parameters
Tea. Volume 23 #2. December. p. 81-90.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K.; Oluoch-Kosura, W. (2001)
See this publicationA test for relative efficiency in the smallholder tea sub-sector in Kenya
Journal of Agriculture Science and Technology. Volume 3 #1. p. 22-29.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K.; Oluoch-Kosura, W. (2001)
See this publicationA measure of economic rationality in the smallholder tea sub-sector in Kenya
Journal of Agriculture Science and Technology. Volume 3 #1. p. 10-21.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Policy factors influencing smallholder tea production in Kenya. Pt. 2. A socio-economic analysis of smallholder farmers
Tea. Volume 22 #2. December. p. 117-124.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Policy factors influencing smallholder tea production in Kenya. Pt. 1. A socio-economic analysis of extension staff
Tea. Volume 22 #2. December. p. 110-116.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Economic efficiency analysis of factory farm clusters in smallholder tea production in Kenya: a case study of Nyamira District
Tea. Volume 22 #2. December. p. 103-109.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Socio-economic analysis of chemical inputs in the smallholder tea subsector in Kenya: a qualitative study on extension service knowledge and farm adoption levels
Tea. Volume 22 #2. December. p. 94-102.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Differentiation of small and micro tea farms in the smallholder tea sub-sector in Kenya: a study of relative efficiency
Tea. Volume 22 #1. July. p. 56-69.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Relative efficiency of the smallholder tea farms factory clusters in Nyambene District, Kenya
Tea. Volume 22 #1. July. p. 51-55.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2001)
Economic efficiency in smallholder tea production in Kenya: the case of Kirinyaga, Nyambene, Nandi and Nyamira districts
Tea. Volume 22 #1. July. p. 38-50.

Periodical articleSudoi, V.; Wanyoko, J.K.; Owuor, P.O.; Langat, J.K. (2001)
Prospects for NPK 25:5:5:5 fertilizer as a component of Brevipalpus phoenicis geijskes (Acari; Tenuipalpidae) mite pest management
Tea. Volume 22 #1. July. p. 13-19.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (2000)
Split application of nitrogen fertilizer rates in two tea cultivars grown in the Eastern and Western highlands of Kenya. Pt. 1. Confirmatory results on yield effects
Tea. Volume 21 #2. December. p. 76-85.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K.; Oyugi, L.A. (2000)
Factors impeding tea production in smallholder sub-sector of the Kenya tea industry. Pt. 3. Economic assessment of the enterprise
Tea. Volume 21 #1. July. p. 42-46.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K.; Kilungo, J.K. (2000)
Factors impeding tea production in smallholder sub-sector of the Kenya tea industry. Pt. 2. Allocative efficiency of farm inputs
Tea. Volume 21 #1. July. p. 35-41.

Periodical articleKavoi, M.M.; Owuor, P.O.; Siele, D.K.; Kilungo, J.K. (2000)
Factors impeding tea production in smallholder sub-sector of the Kenya tea industry. Pt. 1. Green leaf supply
Tea. Volume 21 #1. July. p. 28-34.

Periodical articleOthieno, C.O.; Owuor, P.O.; Wanyoko, J.K. (2000)
Changes in some chemical characteristics of soils under old moribund tea and effect of rehabilitation of the soil
Tea. Volume 21 #2. December. p. 86-91.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2000)
Factors impeding tea production in smallholder sub-sector of the Kenya tea industry: an assessment of farmers awareness and adoption levels of technologies
Tea. Volume 21 #2. December. p. 111-122.

Periodical articleOwuor, P.O.; Kavoi, M.M.; Siele, D.K. (2000)
Factors impeding tea production in smallholder sub-sector of the Kenya tea industry: an assessment of extension staff awareness of existing technologies
Tea. Volume 21 #2. December. p. 101-110.

Periodical articleOwuor, P.O.; Otieno, W.; Othieno, C.O. (2000)
Inhibition of seed germination and radicle growth of lettuce by water extracts of tea leaves
Tea. Volume 21 #2. December. p. 62-65.

Periodical articleOwuor, P.O.; Obanda, M. (2000)
Towards establishment of shelf life of black teas
Tea. Volume 21 #1. July. p. 9-14.

Periodical articleWanyoko, J.K.; Taerum, A.S.; Owuor, P.O. (2000)
Chlorophyll meter use on field grown tea. Pt. 1. The optimum leaf age and measuring positions on a leaf blade
Tea. Volume 21 #2. December. p. 66-70.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (1999)
Effects of rates and ratios of nitrogen and potash fertilisers on seedling tea at Kericho. Pt. 3. Leaf nitrogen and potassium contents
Tea. Volume 20 #1. July. p. 37-47.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (1999)
Effects of rates and ratios of nitrogen and potash fertilisers on seedling tea at Kericho. Pt. 2. Yields
Tea. Volume 20 #1. July. p. 30-36.

Periodical articleOwuor, P.O.; Obanda, M.; McLean, G.; Kisinyo, P.O. (1999)
Fermentability variations of popular clones from Nandi Hills, Kenya
Tea. Volume 20 #1. July. p. 5-11.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (1998)
Effects of rates and ratios of nitrogen and potash fertilizers on seedling tea at Kericho: Pt. 1. Soil pH, soil available calcium, magnesium and extractable manganese
Tea. Volume 19 #2. December. p. 84-91.

Periodical articleKamau, D.M.; Owuor, P.O.; Wanyoko, J.K. (1998)
Economic analysis of nitrogen fertilizers in different tea cultivars east and west of the Rift Valley
Tea. Volume 19 #1. July. p. 27-37.

Periodical articleObanda, M.; Owuor, P.O.; Kamanu, J.N. (1998)
Effects of wither duration and fermentation aeration on black tea quality characteristics of tea produced in a commercial factory
Tea. Volume 19 #2. December. p. 97-106.

Periodical articleOmori, M.; Kato, M.; Tamura, T.; Takada, T.; Owuor, P.O.; Obanda, M. (1998)
Production of CTC Gabaron black tea by modifying withering conditions
Tea. Volume 19 #2. December. p. 92-96.

Periodical articleOwuor, P.O.; Obanda, M. (1998)
The use of chemical parameters as criteria for selecting for quality in clonal black tea in Kenya: achievements, problems and prospects: review
Tea. Volume 19 #1. July. p. 49-58.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Obanda, M.; Othieno, C.O. (1998)
Potash and phosphorus fertilizers on black tea quality in the western Kenya highlands
Tea. Volume 19 #1. July. p. 43-48.

Periodical articleSeurei, P.; Wachira, F.N.; Obanda, M.; Owuor, P.O. (1998)
Breeding and clonal selection: preliminary results from a recent trial
Tea. Volume 19 #2. December. p. 71-76.

Periodical articleObanda, M.; Owuor, P.O. (1997)
Advances in the understanding of the formation on non-volatile quality constituents during black tea fermentation process
Tea. Volume 18 #2. December. p. 194-204.

Periodical articleObanda, M.; Owuor, P.O.; Bore, J.K.A. (1997)
Effects of moisture loss and temperature of leaf during withering on black tea quality parameters
Tea. Volume 18 #1. July. p. 45-50.

Periodical articleOthieno, C.O.; Wanyoko, J.K.; Owuor, P.O.; Lang'at, J.K. (1997)
Effects of and rates of rock phosphate and triple super phosphate fertilizers on soil and leaf nutrient contents and yields of clonal replanted tea in Kericho, Kenya
Tea. Volume 18 #1. July. p. 32-41.

Periodical articleOwuor, P.O.; Obanda, M. (1997)
Advances in withering technologies and future strategies to cope with high tea production in Kenya
Tea. Volume 18 #2. December. p. 184-193.

Periodical articleOwuor, P.O. (1997)
Fertilizer use in tea: the case of nitrogen
Tea. Volume 18 #2. December. p. 132-143.

Periodical articleOwuor, P.O.; Obanda, M. (1997)
Effects of leaf handling on plain black tea quality parameters
Tea. Volume 18 #1. July. p. 51-55.

Periodical articleObanda, M.; Owuor, P.O.; Taylor, S.J. (1996)
Chemical composition of some Kenyan black teas and their probable benefits to human health
Tea. Volume 17 #1. July. p. 20-26.

Periodical articleOwuor, P.O. (1996)
Development of reliable quality parameters for black tea and their application to quality improvement in Kenya
Tea. Volume 17 #2. December. p. 82-90.

Periodical articleOwuor, P.O.; Wanyoko, J.K. (1996)
Rationalization of nitrogen fertilizer use in tea production
Tea. Volume 17 #2. December. p. 53-59.

Periodical articleOwuor, P.O. (1996)
Problems of replanting tea or other crops on old tea lands: possible role of allelochemicals: a review
Tea. Volume 17 #1. July. p. 34-40.

Periodical articleOwuor, P.O.; Obanda, M.; Wanyoko, J.K. (1995)
Quality response of low yielding tea to rates and splitting nitrogen fertilizer application in the eastern and western Kenya Highlands
Tea. Volume 16 #2. December. p. 124-128.

Periodical articleDogo, Y.W.; Owuor, P.O.; Wanyoko, J.K.; Othieno, C.O. (1994)
High rates of nitrogen on tea at high altitudes: Pt. 7. The effects of rates and frequency of applications on soil chemical properties in Mount Kenya area
Tea. Volume 15 #1. July. p. 17-26.

Periodical articleObanda, M.; Owuor, P.O. (1994)
Effects of wither and plucking methods on biochemical and chemical parameters of selected Kenyan tea
Discovery and Innovation. Volume 6 #2. June. p. 190-197.

Periodical articleOwuor, P.O.; Obanda, M.; Othieno, C.O. (1994)
Effects of rates and ratios of nitrogenous and potash fertilizers on tea in the eastern highlands of Kenya: Pt. 3. Quality and value
Tea. Volume 15 #1. July. p. 42-49.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O.; M'Imwere, Z.K. (1994)
High rates of nitrogen on tea at high altitudes: Pt. 6. Yield response to rates and splitting application of NPKS 25:5:5:5 fertilizer and economic analysis of the application to clonal tea in eastern Kenya highlands
Tea. Volume 15 #1. July. p. 8-16.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O. (1993)
Effects of rates and ratios of nitrogenous and potash fertilizers on tea in the eastern highlands of Kenya: Pt. 2. Leaf nutrient contents
Tea. Volume 14 #2. December. p. 78-88.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O.; Sudoi, V. (1993)
Effects of rates and ratios of nitrogenous and potash fertilizers on tea in the Eastern Highlands of Kenya: Pt. 1. Yields
Tea. Volume 14 #2. December. p. 73-77.

Periodical articleOwuor, P.O.; Obanda, M.; Othieno, C.O. (1993)
Quality performance of a few selected smallholder tea factories
Tea. Volume 14 #1. July. p. 31-43.

Periodical articleOwuor, P.O.; Obanda, M. (1992)
Influence of fermentation conditions and duration on the quality of black tea
Tea. Volume 13 #2. December. p. 120-128.

Periodical articleOwuor, P.O. (1992)
High rates of nitrogen fertilizers on tea at high altitude: Pt. 6. Changes in clonal black tea quality due to time of the year, rates and splitting nitrogen application
Tea. Volume 13 #1. July. p. 36-43.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O. (1992)
High rates of nitrogen fertilizer on tea at high altitude: Pt. 5. Yield response of high yielding clonal tea to rates and splitting of nitrogen application
Tea. Volume 13 #1. July. p. 28-35.

Periodical articleWanyoko, J.K.; Owuor, P.O.; Othieno, C.O. (1992)
Ammonium and magnesium sulphates fertilizers on moribund tea. Pt. 2. Effects on soil chemical properties and plant leaf nutrient uptake
Tea. Volume 13 #2. December. p. 91-99.

Periodical articleOnsando, J.M.; Owuor, P.O.; Obanda, M. (1991)
Fungoidal taints in some tea factories in Kenya: what is the causitive agent?
Tea. Volume 12 #2. December. p. 104-108.

Periodical articleOwuor, P.O.; Nordlander, J.E. (1991)
Stereochemistry of solvolytic substitutions of 1-methylcyclohexyl 2,4-dinitrophenolate in binary hydroxylic solvent systems
African Journal of Science and Technology. Series B, Science. Volume 5 #1. January. p. 11-15.

Periodical articleOwuor, P.O.; Nordlander, J.E. (1991)
Stereochemistry of solvolytic substitutions of 1-methylcyclohexyl-3,5-dinitrophenolate in single hydroxylic solvent systems
African Journal of Science and Technology. Series B, Science. Volume 5 #1. January. p. 1-8.

Periodical articleOwuor, P.O.; Othieno, C.O.; Wanyoko, J.K. (1991)
High rates of nitrogen fertilizer on tea at high altitude area: Pt. 4. Yield response of seedling tea to rates and frequency of a nitrogen application
Tea. Volume 12 #2. December. p. 70-77.

Periodical articleOnsando, J.M.; Owuor, P.O. (1990)
The toxicity of polyhydroxyy phenols and other related compounds on growth of hypoxylon serpens (Pers. ex Fr.) KICKX, in vitro
Tea. Volume 11 #2. December. p. 104-108.

Periodical articleOwuor, P.O.; Orchard, J.E. (1990)
Changes in quality and chemical composition of black tea due to degree of physical wither, condition and duration of fermentation
Tea. Volume 11 #2. December. p. 109-117.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O. (1990)
High rates of nitrogen on tea: Pt.2. Monthly changes in mature leaf nitrogen, phosphorus, and potassium contents
Tea. Volume 11 #2. December. p. 90-95.

Periodical articleOwuor, P.O.; Wanyoko, J.K.; Othieno, C.O. (1990)
High rates of nitrogen on tea: Pt.1. Response and distribution of yields of clonal tea
Tea. Volume 11 #2. December. p. 78-89.

Periodical articleOwuor, P.O.; Orchard, J.E. (1990)
Changes in the plain tea quality parameters, individual theaflavins composition and tasters' evaluation of black tea due to extent of two-stage wither, fermentation time, and time of plucking
Tea. Volume 11 #1. July. p. 29-33.

Periodical articleOwuor, P.O. (1990)
Variations of tea quality parameters: response of commercial black tea to the time of the year at Nyambeni Hills: preliminary results
Tea. Volume 11 #1. July. p. 5-7.

Periodical articleWanyoko, J.K.; Owuor, P.O.; Othieno, C.O. (1990)
High rates of nitrogen on tea: Pt.3. Monthly changes on mature leaf calcium, magnesium, manganese and aluminium contents
Tea. Volume 11 #2. December. p. 96-100.

Periodical articleOwuor, P.O.; Njuguna, C.K.; Othieno, C.O. (1989)
Nitrate reductase activity as a selection criterion on tea
East African Agricultural and Forestry Journal. Volume 55 #1-2. July-October. p. 37-40.

Search: au=Owuor, P.O.
Found: 73 Record 1-73

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