K
Keston Njira
Researcher at University of Agriculture, Faisalabad
Publications - 16
Citations - 193
Keston Njira is an academic researcher from University of Agriculture, Faisalabad. The author has contributed to research in topics: Cropping system & Intercropping. The author has an hindex of 7, co-authored 14 publications receiving 108 citations. Previous affiliations of Keston Njira include Sokoine University of Agriculture.
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Journal ArticleDOI
Rice Grain Cadmium Concentrations in the Global Supply-Chain
Zhengyu Shi,Manus Carey,Caroline Meharg,Paul N. Williams,Antonio J. Signes-Pastor,Eridha Ayu Triwardhani,Febbyandi Isnanda Pandiangan,Katrina Campbell,Christopher T. Elliott,Enerst M. Marwa,Xiao Jiujin,Júlia Gomes Farias,Fernando Teixeira Nicoloso,P. Mangala C.S. De Silva,Ying Lu,Gareth J. Norton,Eureka Adomako,Andy J. Green,Eduardo Moreno-Jiménez,Yong-Guan Zhu,Ángel A. Carbonell-Barrachina,Parvez I. Haris,Youssef F. Lawgali,Alessia Sommella,Massimo Pigna,Catherine Brabet,Didier Montet,Keston Njira,Michael J. Watts,Mahmud Hossain,M. Rafiqul Islam,Yasna Tapia,Carla Oporto,Andrew A. Meharg +33 more
TL;DR: The concentrations of cadmium in the global polished (white), market rice supply chain were assessed in 2270 samples, purchased from retailers across 32 countries, encompassing 6 continents as mentioned in this paper.
Journal ArticleDOI
Global Sourcing of Low-Inorganic Arsenic Rice Grain
Manus Carey,Caroline Meharg,Paul N. Williams,Enerst M. Marwa,Xiao Jiujin,Xiao Jiujin,Júlia Gomes Farias,Júlia Gomes Farias,P. Mangala C.S. De Silva,Antonio J. Signes-Pastor,Ying Lu,Fernando Teixeira Nicoloso,Laurie Savage,Katrina Campbell,Christopher T. Elliott,Eureka Adomako,Andy J. Green,Eduardo Moreno-Jiménez,Ángel A. Carbonell-Barrachina,Eridha Ayu Triwardhani,Febbyandi Isnanda Pandiangan,Parvez I. Haris,Youssef F. Lawgali,Alessia Sommella,Massimo Pigna,Catherine Brabet,Didier Montet,Keston Njira,Michael J. Watts,Andrew A. Meharg +29 more
TL;DR: In this article, the authors surveyed polished white rice across representative regions of rice production globally for arsenic speciation, and found that inorganic arsenic dominated when grain sum of species was < 100μg/kg, with DMA dominating at higher concentrations.
Journal ArticleDOI
A review of effects of nutrient elements on crop quality.
Keston Njira,J Nabwami +1 more
TL;DR: It can be concluded that crop quality is a very important area to consider advancing and putting up resources for research since it has a huge bearing on human health and socioeconomic effect on farmers through its influence on marketability of crops and crop products.
Journal ArticleDOI
Biological nitrogen fixation in sole and doubled-up legume cropping systems on the sandy soils of Kasungu, Central Malawi
TL;DR: In this article, the effects of the sole cropped and doubled-up legume systems (legume-legume intercrop) on biological nitrogen fixation on the Ultisols of Kasungu district, Central Malawi were evaluated.
Soil management practices that improve soil health: Elucidating their implications on biological indicators REVIEW PAPER
Keston Njira,Janet Nabwami +1 more
TL;DR: In this article, a review of some soil management practices that improve soil health by taking into account their effects on the biological indicators is presented, which are mainly dominated by various soil biota, their activities and influences or functions.