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Search: au=Owuor, P.O. | ||||||||
Found: 73 | Record 1-73 |
Kebeney, 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. |
Bore, 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. |
Kamau, 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. |
Kamau, 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. |
Kamau, 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. |
Kavoi, M.M.; Oluoch-Kosura, Wallis; Owuor, P.O.; Siele, D.K. (2003) | |
Gender Analysis of Economic Efficiency in Smallholder Tea Production in Kenya | |
Eastern Africa Journal of Rural Development. Volume 19 #1. p. 33-40. |
Kavoi, M.M.; Owuor, P.O.; Siele, D.K. (2002) | |
Minimum tea hectarage hypothesis: the case of smallholder tea sub-sector in Kenya | |
Journal of Agriculture Science and Technology. Volume 4 #1. p. 1-14. |
Kavoi, 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. |
Obanda, 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. |
Kavoi, M.M.; Owuor, P.O.; Siele, D.K.; Oluoch-Kosura, W. (2001) | |
A test for relative efficiency in the smallholder tea sub-sector in Kenya | |
Journal of Agriculture Science and Technology. Volume 3 #1. p. 22-29. |
Kavoi, M.M.; Owuor, P.O.; Siele, D.K.; Oluoch-Kosura, W. (2001) | |
A measure of economic rationality in the smallholder tea sub-sector in Kenya | |
Journal of Agriculture Science and Technology. Volume 3 #1. p. 10-21. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Sudoi, 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. |
Kamau, 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. |
Kavoi, 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. |
Kavoi, 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. |
Kavoi, 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. |
Othieno, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, P.O.; Obanda, M. (2000) | |
Towards establishment of shelf life of black teas | |
Tea. Volume 21 #1. July. p. 9-14. |
Wanyoko, 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. |
Kamau, 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. |
Kamau, 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. |
Owuor, 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. |
Kamau, 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. |
Kamau, 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. |
Obanda, 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. |
Omori, 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. |
Owuor, 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. |
Owuor, 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. |
Seurei, 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. |
Obanda, 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. |
Obanda, 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. |
Othieno, 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. |
Owuor, 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. |
Owuor, P.O. (1997) | |
Fertilizer use in tea: the case of nitrogen | |
Tea. Volume 18 #2. December. p. 132-143. |
Owuor, P.O.; Obanda, M. (1997) | |
Effects of leaf handling on plain black tea quality parameters | |
Tea. Volume 18 #1. July. p. 51-55. |
Obanda, 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. |
Owuor, 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. |
Owuor, P.O.; Wanyoko, J.K. (1996) | |
Rationalization of nitrogen fertilizer use in tea production | |
Tea. Volume 17 #2. December. p. 53-59. |
Owuor, 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. |
Owuor, 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. |
Dogo, 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. |
Obanda, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Wanyoko, 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. |
Onsando, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Onsando, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Owuor, 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. |
Wanyoko, 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. |
Owuor, 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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