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Johnson M. Semoka
Johnson M. Semoka
Professor at Sokoine University of Agriculture
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Available technologies to replenish soil fertility in East Africa
JR Okalebo, CO Othieno, PL Woomer, NK Karanja, JRM Semoka, ...
Advances in integrated soil fertility management in sub-Saharan Africa …, 2007
2192007
Soil fertility survey in western Usambara Mountains, northern Tanzania
PA Ndakidemi, JMR Semoka
Pedosphere 16 (2), 237-244, 2006
992006
Wheat response to applied nitrogen, sulfur, and phosphorous in three representative areas of the central highlands of Ethiopia-I
A Menna, JMR Semoka, N Amuri, T Mamo
International Journal of Plant & Soil Science 8 (5), 1-11, 2015
542015
Maize yield response and nutrient uptake after micronutrient application on a volcanic soil
JB Lisuma, JMR Semoka, E Semu
Agronomy journal 98 (2), 402-406, 2006
482006
Extrapolating effects of conservation tillage on yield, soil moisture and dry spell mitigation using simulation modelling
ZJ Mkoga, SD Tumbo, N Kihupi, J Semoka
Physics and Chemistry of the Earth, Parts A/B/C 35 (13-14), 686-698, 2010
442010
Can local Minjingu phosphate rock replace superphosphate on acid soils in Tanzania?
C Szilas, JMR Semoka, OK Borggaard
Nutrient Cycling in Agroecosystems 77, 257-268, 2007
422007
The joint effects of information and financing constraints on technology adoption: Evidence from a field experiment in rural Tanzania
AP Harou, M Madajewicz, H Michelson, CA Palm, N Amuri, C Magomba, ...
Journal of Development Economics 155, 102707, 2022
402022
Pedological characterization of some typical soils of Busia County, Western Kenya: Soil morphology, physico-chemical properties, classification and fertility trends
SJ Kebeney, BM Msanya, WK Ng’etich, JMR Semoka, CK Serrem
International Journal of Plant & Soil Science, 2015
402015
Hard Minjingu phosphate rock: an alternative P source for maize production on acid soils in Tanzania
MM Msolla, JMR Semoka, OK Borggaard
Nutrient Cycling in Agroecosystems 72, 299-308, 2005
392005
Soil nutrient adequacy for optimal cassava growth, implications on cyanogenic glucoside production: A case of konzo-affected Mtwara region, Tanzania
MLE Imakumbili, E Semu, JMR Semoka, A Abass, G Mkamilo
PLoS One 14 (5), e0216708, 2019
352019
Effectiveness of Minjingu phosphate rock as a source of phosphorus for maize in some soils of Morogoro, Tanzania
PNS Mnkeni, JMR Semoka, J Buganga
The Zimbabwe Journal of Agricultural Research (Zimbabwe) 29 (1), 1991
341991
Soil test calibration studies for formulation of phosphorus fertilizer recommendations for maize in Morogoro district, Tanzania. I. evaluation of soil test methods
DA Ussiri, PNS Mnkeni, AF MacKenzie, JMR Semoka
Communications in soil science and plant analysis 29 (17-18), 2801-2813, 1998
281998
Agrogeology in East Africa: the Tanzania-Canada project
W Chesworth, P Van Straaten, JMR Semoka
Journal of African Earth Sciences (and the Middle East) 9 (2), 357-362, 1989
251989
Introductory soil science
AP Uriyo
(No Title), 1979
241979
Pedological characterization and classification of some typical soils in three agro-ecological settings of South-Eastern Tanzania
JJ Tenga, BM Msanya, JM Semoka, E Semu, SB Mwongo
IJSER, 2018
222018
Pedological characterization of some typical alluvial soils of Kilombero District, Tanzania
AM Kalala, BM Msanya, NA Amuri, JM Semoka
American Journal of Agriculture and Forestry, 2017
222017
Participatory assessment of soil degradation in the uplands of southwestern Tanzania: implications for sustainable agriculture and rural livelihoods
ZJU Malley, JMR Semoka, JA Kamasho, CV Kabungo
The International Journal of Sustainable Development and World Ecology 13 (3 …, 2006
222006
Genotypic variation for tolerance to low soil phosphorous in common bean under controlled screen house conditions
A Namayanja, J Semoka, R Buruchara, S Nchimbi, M Waswa
Agricultural sciences 2014, 2014
212014
Establishment of an agronomic database for Minjingu phosphate rock and examples of its potential use
C Szilas, JMR Semoka, OK Borggaard
Nutrient cycling in agroecosystems 78, 225-237, 2007
202007
Effectiveness of Tanzanian phosphate rocks of igneous and sedimentary origin as sources of phosphorus for maize
JMR Semoka, PNS Mnkeni, HD Ringo
Zimbabwe Journal of Agricultural Research 30 (2), 127-136, 1992
191992
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Artikelen 1–20