• Classification, Characterisation, and Use of Small Wetlands in East Africa 

  Nomé Sakané & Miguel Alvarez & Mathias Becker & Beate Böhme & Collins Handa & Hellen W. Kamiri & Matthias Langensiepen & Gunter Menz & Salome Misana & Neema G. Mogha & Bodo Maria Möseler & Emiliana J. Mwita & Helida A. Oyieke & Mark T. van Wijk (2012-08-20)

  Small wetlands in Kenya and Tanzania cover about 12 million ha and are increasingly converted for agricultural production. There is a need to provide guidelines for their future protection or use, requiring their systematic ...
• Do Mixed-Species Legume Fallows Provide Long-Term Maize Yield Benefi t Compared with Monoculture Legume Fallows? 

  James K. Ndufa, * Stanley M. Gathumbi, Hellen W. Kamiri, Ken E. Giller, and Georg Cadisch (2009-11-01)

  Th e deliberate planting of fast-growing N2–fi xing legume monoculture species in rotation with cereal crops can be an important source of N for soil fertility replenishment. We hypothesized that mixed-species fallows ...
• Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry 

  Kibet Sitienei , 1,2 Hellen W. Kamiri,3 Gilbert M. Nduru,1 and David M. Kamau4 (2018-10-01)

  Kenya’s tea industry depends predominantly on imported compound NPK fertilizers to replenish nutrients removed through plucking. 'ese fertilizers cannot be easily manipulated for specific soils and tea clones. 'ey also ...
• Evaluating the effect of plant population densities and nitrogen application on the leaf area index of maize in a reclaimed wetland in Kenya 

  Catherine Waithira NJUGUNA, 1 Hellen Wangechi KAMIRI, 2 John Robert OKALEBO,1 Wilson NGETICH,1 Syphilline KEBENEY1 (2016-10-30)

  Maize is the main staple food in Kenya with over 90% of Kenyans relying on it. While the annual national consumption is increasing, the production of this crop has been on the decline in the last two decades. Maize ...
• Evaluation of mineral nutrition and growth of Eucalyptus saligna seedlings raised on organic–enriched nursery potting media 

  Ashiono F.1*, Kamiri H.W.2, and Kinyanjui M.3 (2019-03-01)

  Forest soil is the convectional growth media used in raising seedlings in tree nurseries in Kenya. Poor growth media in tree nursery establishment has been reported as the major cause of poor seedling establishment in the ...
• Assessment of Tomato Farming Systems and Rainfall Variability Related Implications in Semi-Arid Regions of Central Kenya 

  Joseph M. Karienye1* , Tom Ouna1 , Hellen Kamiri2 (2019-10-06)

  The future of African agriculture depends on the outcome of climate and specifically on rainfall variability. In arid and semi-arid areas, the impacts of rainfall variability can be adverse especially where the main farming ...
• Factors Influencing Banana Farmers Adaptation Strategies to Climate Variability in Meru County Kenya 

  Kibet Sitienei 1, 3,4, Hellen W. Kamiri2, Gilbert M. Nduru1, David M. Kamau3, Wilson K. Nyabundi4, Maureen Morogo5 (2019-01-01)

  Food production among rural farmers globally has been threatened by climate variability impacts leading to food scarcity. Small holder farmers face challenges in the choice of appropriate adaptive mechanisms when responding ...
• Effects of Blended Fertilizers on Yields of Mature Clonal Tea grown in Kenyan Highlands 

  Kibet Sitienei 1, 3,4, Hellen W. Kamiri2, Gilbert M. Nduru1, David M. Kamau3, Wilson K. Nyabundi4, Maureen Morogo5 (1-01-20)

  Fertilizer requirement for tea production is high since the pluckable portions are succulent shoots, which contain the largest percentage of nutrients. Kenya’s tea industry depends predominantly on imported compound NPK ...
• Is Soil Fertility the Cause or the Effect of Land Invasion by Prosopis? 

  Mathias Becker1 Kai Behn1 Gereon Heller1, 3 Hellen W. Kamiri1,2 (2024-10-14)

  Background: For 20 years, Prosopis juliflora is aggressively spreading throughout the “Njemps Flats” in Kenya, where it changes vegetation cover and affects pastoral livelihoods. Its invasion dynamics is related to shallow ...
• EFFECTS OF BLENDED FERTILIZERS ON YIELDS OF MATURE TEA CLONES TRFK 6/8 AND BBK 35 GROWN IN KENYAN HIGHLANDS 

  Kibet Sitieneia, c, d*, Hellen W. Kamiri b , Gilbert M. Nduru a , David M. Kamau c , Wilson K. Nyabundid and Maureen Morogoe (2018-10-02)

  Kenya’s tea industry depends predominantly on imported NPK fertilizers to replenish nutrients removed through plucking. In this respect, two blended fertilizers containing NPKS 25:5:5:4+9Ca+2.6Mg and NPKS 23:5:5:4+10Ca+3Mg ...
• Farmers’ Management Practices of Potato Bacterial Wilt and Its Implications in Disease Prevalence in Kenya 

  Samuel Musah, Rael Birithia, Hellen Kamiri, Esther Kahariri (2025-01-30)

  The widespread occurrence of potato bacterial wilt significantly contributes to the reduced potato yields in Kenya. Implementing effective management strategies for this disease usually necessitates understanding the ...
• Evaluation of farming systems effects on spatial and temporal variability of soil moisture, organic carbon and bulk density in rain-fed lowlands of Laikipia County, Kenya 

  D. M. Kinyumu H. W. Kamiri P. W. Mathenge (AJOL, 2023-11-06)

  A study to determine the effects of farming systems on spatial and temporal variability of soil bulk density, soil organic carbon and soil moisture was carried out in lowland areas of Laikipia during 2019 and 2020 cropping ...
• Assessment of soil carbon and pH under forest stands and adjacent farmlands in a micro-tropical forest in Machakos County 

  J. Nderitu H. Kamiri F. Namu (2022-10-01)

  This study evaluated the soil total organic carbon (TOC) and pH within Iveti forest, Machakos Kenya and the adjacent farmlands to determine variability among forest stands and adjacent agricultural fields. A total of 39 ...
• ECOSYSTEMS BASED ADAPTATIONS TO CLIMATE CHANGE ON THE WESTERN SLOPES OF MT KENYA FOREST ECOSYSTEMS KENYA 

  David Karienye 1 , Hellen Kamiri 2 Gilbert Nduru 2 (Springer, Netherlands, 2007-01-01)

  Conversion of natural wetlands to cropped land can have significant impacts on the transformation of soil aggregates and associated nutrients, including soil phosphorus (P). However, little is known about the changes in P ...
• Organic and Mineral Input Management to Enhance Crop Productivity in Central Kenya 

  P. Chivenge, * B. Vanlauwe, R. Gentile, H. Wangechi, D. Mugendi, C. van Kessel, and J. Six (2005-01-01)

  Organic resources (ORs) are important nutrient inputs in tropical agriculture. Combined with mineral fertilizers, they form the backbone of integrated soil fertility management. Th is study was conducted to determine the ...
• Plant Communities Changes in Relation to Land Uses and Soil Properties in Malinda Wetland, Tanzania 

  Neema Mogha1, Collins Handa2 , Miguel Alvarez3 , Bodo Möseler3 , Hellen Kamiri4 (2023-01-01)

  In East Africa, demographic growth, inter-generational inheritance of land, increasing land scarcity in the highland areas, degradation of upland soils and inter-annual rain variability is increasing cropping pressure on ...
• INFLUENCEOF WATER STRESS ON GROWTH AND YIELD.COMPONENTS OF SELECTED PIGEONPEA GENOTYPES 

  CHEBOI, JULIANA,PAUL,GEORGE,CHEMININGW'A ,N KIMURTO,,MOSENDA,GANGARAO (AUSTRALIAN JOURNAL OF CROP SCIENCE, 2024-12-07)

  Drought and high temperature mostly influence growth and development of pigeonpea, resulting in forced maturity. Though these stresses have a drastic impact on reducing productivity of pigeonpea, limited efforts have been ...
• EXPLOITING THE POTENTIAL OF AUXINS AND TRANS‑CINNAMIC ACID FOR IN VITRO ROOTING OF MELIA VOLKENSII GÜRKE CLONES 

  Dushimimana, Constantin,Titus,Margaret,GeorgeMagomere,Hutchinson,Chemining’wa (The Society for In Vitro Biology 2025, 2025-02-05)

  The aim of this study was to optimize the in vitro propagation and rooting of elite Melia volkensii Gürke clones. The effects of auxins, trans-cinnamic acid, and silver thiosulfate (STS) were assessed. The genotype response ...
• SYMBIOTIC NITROGEN-FIXATION AND YIELD OF SOYBEAN INOCULATED WITH ACID-TOLERANT RHIZOBIA STRAINS FOLLOWING SOIL AMENDMENTS UNDER LOW SOIL PH CONDITIONS OF RWANDA 

  NZEYIMANA, FELIX,RICHARD,FREDRICK,GEORGEONWONGA,AYUKE,CHEMINING’WA (DOI, 2025-01-10)

  Abstract Soil acidity is a limiting factor in legume system during plant growth and microsymbionts process. The aim of this work was to identify and document acid tolerant rhizobium strains and their response to soybean ...
• EARLY MARRIAGE INFLUENCE ON HIV/AIDS PREVALENCE IN TURKANA CENTRAL SUB-COUNTY 

  Alimlim, Rebecca,Peter, NashonEdome, Mwirigi (Scientific Research Publishing, 2025-02-23)

  HIV/AIDS remains a major global public health challenge, with sub-Saharan Africa bearing the highest burden. Young people between the ages of 16 and 30 are among the most vulnerable, and despite extensive efforts by ...

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