[1]

Vanlauwe B, Hungria M, Kanampiu F, Giller KE. 2019. The role of legumes in the sustainable intensification of African smallholder agriculture: lessons learnt and challenges for the future. Agriculture, Ecosystems & Environment 284:106583

doi: 10.1016/j.agee.2019.106583
[2]

Hartman GL, West ED, Herman TK. 2011. Crops that feed the World 2. Soybean—worldwide production, use, and constraints caused by pathogens and pests. Food Security 3:5−17

doi: 10.1007/s12571-010-0108-x
[3]

Bashan Y, de-Bashan LE, Prabhu SR, Hernandez JP. 2014. Advances in plant growth-promoting bacterial inoculant technology: formulations and practical perspectives (1998–2013). Plant and Soil 378:1−33

doi: 10.1007/s11104-013-1956-x
[4]

Gupta G, Parihar SS, Ahirwar NK, Snehi SK, Singh V. 2015. Plant Growth Promoting Rhizobacteria (PGPR): Current and future prospects for development of sustainable agriculture. Journal of Microbial & Biochemical Technology 7(2):96−102

doi: 10.4172/1948-5948.1000188
[5]

Thilakarathna MS, Chapagain T, Ghimire B, Pudasaini R, Tamang B, et al. 2019. Evaluating the effectiveness of Rhizobium inoculants and micronutrients as technologies for Nepalese common bean smallholder farmers in the real-world context of highly variable hillside environments and indigenous farming practices. Agriculture 9:20

doi: 10.3390/agriculture9010020
[6]

Thilakarathna MS, Raizada MN. 2017. A meta-analysis of the effectiveness of diverse rhizobia inoculants on soybean traits under field conditions. Soil Biology and Biochemistry 105:177−96

doi: 10.1016/j.soilbio.2016.11.022
[7]

Lorito M, Woo SL. 2015. Trichoderma: A multi-purpose tool for integrated pest management. In Principles of Plant-Microbe Interactions, ed. Lugtenberg B. Cham, Switzerland: Springer. pp. 345−53. https://doi.org/10.1007/978-3-319-08575-3_36

[8]

Wilson RT. 2015. Value chain in Tanzania: A report from the Southern Highlands Food Systems Programme. United State: FAO. www.fao.org/publications

[9]

Santos M. 2019. The State of Soybean in Africa: Soybean Varieties in Sub-Saharan Africa. farmdoc daily (9):155. Department of Agricultural and Consumer Economics, University of Illinois at Urbana-Champaign. pp. 1–4.

[10]

Aloo BN, Mbega ER, Makumba BA. 2021. Sustainable food production systems for climate change mitigation: indigenous rhizobacteria for potato bio-fertilization in Tanzania. In African Handbook of Climate Change Adaptation, eds. Oguge N, Ayal D, Adeleke L, da Silva I. Cham, Switzerland: Springer. pp. 1469–95. https://doi.org/10.1007/978-3-030-45106-6_276

[11]

Nakei MD, Venkataramana PB, Ndakidemi PA. 2022. Soybean-nodulating rhizobia: ecology, characterization, diversity, and growth promoting functions. Frontiers in Sustainable Food Systems 6:824444

doi: 10.3389/fsufs.2022.824444
[12]

Singh B. 2015. Managing fertilizers to enhance soil health. International Fertilizer Association (IFA). pp. 1-23. www.academia.edu/48848315/Managing_fertilizers_to_enhance_soil_health?auto=citations&from=cover_page

[13]

Bennett AJ, Bending GD, Chandler D, Hilton S, Mills P. 2012. Meeting the demand for crop production: the challenge of yield decline in crops grown in short rotations. Biological Reviews 87:52−71

doi: 10.1111/j.1469-185X.2011.00184.x
[14]

Pervaiz ZH, Iqbal J, Zhang Q, Chen D, Wei H, et al. 2020. Continuous cropping alters multiple biotic and abiotic indicators of soil health. Soil Systems 4:59

doi: 10.3390/soilsystems4040059
[15]

Turmel MS, Speratti A, Baudron F, Verhulst N, Govaerts B. 2015. Crop residue management and soil health: a systems analysis. Agricultural Systems 134:6−16

doi: 10.1016/j.agsy.2014.05.009
[16]

Scotti R, Bonanomi G, Scelza R, Zoina A, Rao MA. 2015. Organic amendments as sustainable tool to recovery fertility in intensive agricultural systems. Journal of Soil Science and Plant Nutrition 15(2):333−52

doi: 10.4067/s0718-95162015005000031
[17]

Ngetich FK, Shisanya CA, Mugwe J, Mucheru-Muna M, Mugendi D. 2012. The potential of organic and inorganic nutrient sources in sub-saharan African crop farming systems. In Soil Fertility Improvement and Integrated Nutrient Management - A Global Perspective, ed. Whalen JK. Rijeka, Croatia: InTech. pp. 135−56. https://doi.org/10.5772/28728

[18]

Benbi DK, Singh M, Wanjari RH, Bansal KN, Gupta N, et al. 2015. Targeted yield approach of fertiliser recommendation for sustaining crop yield. Jawaharlal Nehru Krishi Vishw Vidyalaya Research Journal 49(3):347−65

[19]

Bonilla I, Bolaños L. 2009. Mineral nutrition for legume-rhizobia symbiosis: B, Ca, N, P, S, K, Fe, Mo, co, and Ni: A review. In Organic Farming, Pest Control and Remediation of Soil Pollutants, ed. Lichtfouse E. Dordrecht: Springer. pp. 253–74. https://doi.org/10.1007/978-1-4020-9654-9_13

[20]

Arora NK. 2015. Plant microbes symbiosis: Applied facets. 381 pp. https://doi.org/10.1007/978-81-322-2068-8.

[21]

Snapp S, Rahmanian M, Batello C. 2018. Pulse crops for sustainable farms in sub-Saharan Africa. Rome: FAO. https://doi.org/10.18356/6795bfaf-en

[22]

Frelat R, Lopez-Ridaura S, Giller KE, Herrero M, Douxchamps S, et al. 2016. Drivers of household food availability in sub-Saharan Africa based on big data from small farms. Proceedings of the National Academy of Sciences of the United States of America 113:458−63

doi: 10.1073/pnas.1518384112
[23]

Materechera SA. 2010. Utilization and management practices of animal manure for replenishing soil fertility among smallscale crop farmers in semi-arid farming districts of the North West Province, South Africa. Nutrient Cycling in Agroecosystems 87:415−28

doi: 10.1007/s10705-010-9347-7
[24]

Franke AC, van den Brand GJ, Vanlauwe B, Giller KE. 2018. Sustainable intensification through rotations with grain legumes in Sub-Saharan Africa: a review. Agriculture, Ecosystems & Environment 261:172−85

doi: 10.1016/j.agee.2017.09.029
[25]

Mfwango LH, Tripathi SK, Pranuthi G, Dubey SK, Gubey VK. 2018. Application of decision support system for agro technology transfer (DSSAT) to simulate agronomic practices for cultivation of maize in southern highland of Tanzania. Agricultural Sciences 9:910−23

doi: 10.4236/as.2018.97063
[26]

Kacholi DS. 2020. Population structure, harvesting rate and regeneration status of four woody species in Kimboza forest reserve, Morogoro region - Tanzania. Plants and Environment 2:94−100

doi: 10.22271/2582-3744.2020.sep.94
[27]

Motsara MR, Roy KN. 2008. Guide to laboratory establishment for plant nutrient analysis. Rome: Food and Agriculture Organization of the United Nations.

[28]

Nelson DW, Sommers IE. 1996. Organic Carbon in Soils. In Methods of soil analysis, Part 2, Agronomy Monograph 9, eds. Page AL, Miller RH, Keeney DR. Madison, W.I., USA: ASA, SSSA. pp. 570–71.

[29]

Thomas GW. 1996. Exchangeable cations. In Methods of Soil Analysis. Part 11, Agronomy Monograph 9. 3rd Edition. Madison, W.I., USA: ASA, SSSA.

[30]

Bray RH, Kurtz LT. 1945. Determination of total, organic, and available forms of phosphorus in soils. Soil Science 59:39−46

doi: 10.1097/00010694-194501000-00006
[31]

Abrar AA, Letebo TH. 2017. Isolation and characterization of rhizobia from rhizospher and root nodule of cowpea, elephant and lablab plants. International Journal of Novel Research in Interdisciplinary Studies 4(4):1−7

[32]

Somasegaran H, Hoben P. 1994. Handbook for Rhizobia: Methods in Legume-Rhizobium Technology. New York, USA: Springer. https://doi.org/10.1007/978-1-4613-8375-8

[33]

de Paul Obade V, Lal R. 2016. A standardized soil quality index for diverse field conditions. Science of the Total Environment 541:424−34

doi: 10.1016/j.scitotenv.2015.09.096
[34]

Pouladi N, Jafarzadeh AA, Shahbazi F, Ali Ghorbani M, Greve MH. 2020. Assessing the soil quality index as affected by two land use scenarios in Miandoab region. SN Applied Sciences 2:1875

doi: 10.1007/s42452-020-03651-9
[35]

Abdel-Fattah MK, Mohamed ES, Wagdi EM, Shahin SA, Aldosari AA, et al. 2021. Quantitative evaluation of soil quality using principal component analysis: the case study of el-fayoum depression Egypt. Sustainability 13:1824

doi: 10.3390/su13041824
[36]

Msanya BM. 2012. Guide To General Rating of Some Chemical and Physical Soil. Sokoine University of Agriculture, Morogoro, Tanzania.

[37]

Dabessa A, Abebe Z, Bekele S. 2018. Limitations and strategies to enhance biological nitrogen fixation in sub-humid tropics of Western Ethiopia. Journal of Agricultural Biotechnology and Sustainable Development 10:122−31

doi: 10.5897/jabsd2018.0318
[38]

Ndakidemi PA, Semoka JMR. 2006. Soil fertility survey in western usambara mountains, northern Tanzania. Pedosphere 16:237−44

doi: 10.1016/s1002-0160(06)60049-0
[39]

Martinsen V, Alling V, Nurida NL, Mulder J, Hale SE, et al. 2015. pH effects of the addition of three biochars to acidic Indonesian mineral soils. Soil Science and Plant Nutrition 61:821−34

doi: 10.1080/00380768.2015.1052985
[40]

Tian CF, Zhou YJ, Zhang YM, Li QQ, Zhang YZ, et al. 2012. Comparative genomics of rhizobia nodulating soybean suggests extensive recruitment of lineage-specific genes in adaptations. Proceedings of the National Academy of Sciences of the United States of America 109:8629−34

doi: 10.1073/pnas.1120436109
[41]

Aloo B. 2021. Characterization of rhizobacteria and their formulation into biofertilizers for potato (Solanum Tuberosum L.) growth promotion in Tanzania. Doctoral dissertation. Nelson Mandela African Institution of Science and Technology in Arusha, Tanzania. www.nm-aist.ac.tz

[42]

Xu R, Zhao A, Yuan J, Jiang J. 2012. pH buffering capacity of acid soils from tropical and subtropical regions of China as influenced by incorporation of crop straw biochars. Journal of Soils and Sediments 12(4):494−502

doi: 10.1007/s11368-012-0483-3
[43]

Morad Wahba M, Labib MF, Zaghloul A. 2019. Management of calcareous soils in arid region. International Journal of Environmental Pollution & Environmental Modelling 2(5):248−58

[44]

Rani N, Kaur R, Kaur S. 2020. Zinc solubilizing bacteria to augment soil fertility – A comprehensive review. International Journal of Agricultural Sciences and Veterinary Medicine 8(1):38−44

[45]

Senbayram M, Gransee A, Wahle V, Thiel H. 2015. Role of magnesium fertilisers in agriculture: plant–soil continuum. Crop and Pasture Science 66:1219

doi: 10.1071/cp15104
[46]

Qadir M, Schubert S, Oster JD, Sposito G, Minhas PS, et al. 2018. High-magnesium waters and soils: emerging environmental and food security constraints. Science of the Total Environment 642:1108−17

doi: 10.1016/j.scitotenv.2018.06.090
[47]

Rengel Z, Damon PM. 2008. Crops and genotypes differ in efficiency of potassium uptake and use. Physiologia Plantarum 133:624−36

doi: 10.1111/j.1399-3054.2008.01079.x
[48]

Römheld V, Kirkby EA. 2010. Research on potassium in agriculture: needs and prospects. Plant and Soil 335:155−80

doi: 10.1007/s11104-010-0520-1
[49]

Yanni YG, Rizk RY, El-Fattah FKA, Squartini A, Corich V, et al. 2001. The beneficial plant growth-promoting association of Rhizobium leguminosarum bv. trifolii with rice roots. Functional Plant Biology 28:845

doi: 10.1071/pp01069
[50]

Saiyad SA, Jhala YK, Vyas RV. 2015. Comparative efficiency of five potash and phosphate solubilizing bacteria and their key enzymes useful for enhancing and improvement of soil fertility. International Journal of Scientific and Research Publications 5(2):1−6

[51]

Farrar MB, Wallace HM, Xu CY, Joseph S, Dunn PK, et al. 2021. Biochar co-applied with organic amendments increased soil-plant potassium and root biomass but not crop yield. Journal of Soils and Sediments 21:784−98

doi: 10.1007/s11368-020-02846-2
[52]

Wakeel A, Farooq M, Qadir M, Schubert S. 2011. Potassium substitution by sodium in plants. Critical Reviews in Plant Sciences 30:401−13

doi: 10.1080/07352689.2011.587728
[53]

Wakeel A, Rehman HU, Magen H. 2017. Potash use for sustainable crop production in Pakistan: a review. International Journal of Agriculture and Biology 19:381−90

doi: 10.17957/ijab/15.0291
[54]

Mmbaga GW, Mtei KM, Ndakidemi PA. 2014. Extrapolations on the use of Rhizobium inoculants supplemented with phosphorus (P) and potassium (K) on growth and nutrition of legumes. Agricultural Sciences 5(12):1207−26

doi: 10.4236/as.2014.512130
[55]

Abebe Z. 2017. On-farm yield variability and responses of common bean (Phaseolus vulgaris L.) varieties to rhizobium inoculation with inorganic fertilizer rates. Journal of Animal & Plant Sciences 32(2):5120−33

[56]

Malhotra H, Vandana, Sharma S, Pandey R. 2018. Phosphorus nutrition: Plant growth in response to deficiency and excess. In Plant Nutrients and Abiotic Stress Tolerance, eds. Hasanuzzaman M, Fujita M, Oku H, Nahar K, Hawrylak-Nowak B. Singapore: Springer Nature. pp. 171–90. https://doi.org/10.1007/978-981-10-9044-8_7

[57]

Smith FW, Rae AL, Hawkesford MJ. 2000. Molecular mechanisms of phosphate and sulphate transport in plants. Biochimica et Biophysica Acta (BBA) - Biomembranes 1465:236−45

doi: 10.1016/s0005-2736(00)00141-3
[58]

Shukla AK, Tiwari PK. 2016. Micro and secondary nutrients and pollutant elements research in India. Coordinators Report. AICRP on Micro- and Secondary Nutrients and Pollutant Elements in Soils and Plants, Indian Council of Agricultural Research- Indian Institute of Soil Science (ICAR-IISS), Bhopal. pp. 1–196

[59]

Palm CA, Giller KE, Mafongoya PL, Swift MJ. 2001. Management of organic matter in the tropics: translating theory into practice. Nutrient Cycling in Agroecosystems 61:63−75

doi: 10.1023/A:1013318210809
[60]

Mohammadi K, Sohrabi Y, Heidari G, Khalesro S, Mohammad M. 2012. Effective factors on biological nitrogen fixation. African Journal of Agricultural Research 7(12):1782−88

doi: 10.5897/ajarx11.034
[61]

González-Guerrero M, Matthiadis A, Sáez Á, Long TA. 2014. Fixating on metals: new insights into the role of metals in nodulation and symbiotic nitrogen fixation. Frontiers in Plant Science 5:45

doi: 10.3389/fpls.2014.00045
[62]

Shukla AK, Behera SK, Pakhre A, Chaudhari SK. 2018. Micronutrients in soils, plants, animals and Humans. Indian Journal of Fertilisers 14(4):30−54

[63]

Kasper S, Christoffersen B, Soti P, Racelis A. 2019. Abiotic and biotic limitations to nodulation by leguminous cover crops in south texas. Agriculture 9:209

doi: 10.3390/agriculture9100209
[64]

Rubio MC, Becana M, Sato S, James EK, Tabata S, et al. 2007. Characterization of genomic clones and expression analysis of the three types of superoxide dismutases during nodule development in Lotus japonicus. Molecular Plant - Microbe Interactions® 20:262−75

doi: 10.1094/mpmi-20-3-0262
[65]

McLauchlan KK. 2006. Effects of soil texture on soil carbon and nitrogen dynamics after cessation of agriculture. Geoderma 136:289−99

doi: 10.1016/j.geoderma.2006.03.053
[66]

Alotaibi KD, Cambouris AN, St Luce M, Ziadi N, Tremblay N. 2018. Economic optimum nitrogen fertilizer rate and residual soil nitrate as influenced by soil texture in corn production. Agronomy Journal 110:2233−42

doi: 10.2134/agronj2017.10.0583
[67]

Oguntunde PG, Fosu M, Ajayi AE, van de Giesen N. 2004. Effects of charcoal production on maize yield, chemical properties and texture of soil. Biology and Fertility of Soils 39:295−99

doi: 10.1007/s00374-003-0707-1
[68]

Al-Saedi SA, Razaq IB, Ali NA. 2016. Effect of soil textural classes on the biological nitrogen fixation by Bradyrhizobium measured by 15N dilution analysis. Baghdad Science Journal 13:734−44

doi: 10.21123/bsj.13.4.734-744
[69]

Datta A, Nayak D, Smith JU, Sharma PC, Jat HS, et al. 2022. Climate smart agricultural practices improve soil quality through organic carbon enrichment and lower greenhouse gas emissions in farms of bread bowl of India. Soil Research 60:455−69

doi: 10.1071/sr21031
[70]

Li Y, Pan F, Yao H. 2019. Response of symbiotic and asymbiotic nitrogen-fixing microorganisms to nitrogen fertilizer application. Journal of Soils and Sediments 19:1948−58

doi: 10.1007/s11368-018-2192-z
[71]

Shi TQ, Peng H, Zeng SY, Ji RY, Shi K, et al. 2017. Microbial production of plant hormones: opportunities and challenges. Bioengineered 8:124−28

doi: 10.1080/21655979.2016.1212138
[72]

Kirk GJD, Bellamy PH, Lark RM. 2009. Changes in soil pH across England and Wales in response to decreased acid deposition. Global Change Biology 16:3111−19

doi: 10.1111/j.1365-2486.2009.02135.x
[73]

Barthakur IK. 2018. Soil pH as a phenotype determinant in humans: proposing a scientific hypothesis. Open Journal of Soil Science 8:36−46

doi: 10.4236/ojss.2018.81003
[74]

Elkoca E, Kocli T, Gunes A, Turan M. 2015. The symbiotic performance and plant nutrient uptake of certain nationally registered chickpea (Cicer Arietinum L.) cultivars of Turkey. Journal of Plant Nutrition 38:1427−43

doi: 10.1080/01904167.2014.983123
[75]

Mfilinge A, Mtei K, Ndakidemi PA. 2014. Effects of rhizobium inoculation and supplementation with P and K, on growth, leaf chlorophyll content and nitrogen fixation of bush bean varieties. American Journal of Research Communication 2(10):49−87

[76]

Dexter AD, Czyż EA, Gaţe OP. 2007. A method for prediction of soil penetration resistance: In Crop Reactions To Water and Temperature Stresses in Humid, Temperate Climates, Soil and Tillage Research. vol. 93. USA: Williams & Wilkins Co. pp. 412–19. https://doi.org/10.1016/j.still.2006.05.011

[77]

Moscatiello R, Zaccarin M, Ercolin F, Damiani E, Squartini A, et al. 2015. Identification of ferredoxin II as a major calcium binding protein in the nitrogen-fixing symbiotic bacterium Mesorhizobium loti. BMC Microbiology 15:16

doi: 10.1186/s12866-015-0352-5
[78]

Fernández-Sanjurjo MJ, Alvarez-Rodríguez E, Núñez-Delgado A, Fernández-Marcos ML, Romar-Gasalla A. 2014. Nitrogen, phosphorus, potassium, calcium and magnesium release from two compressed fertilizers: column experiments. Solid Earth 5:1351−60

doi: 10.5194/se-5-1351-2014
[79]

Kafeel U, Jahan U, Khan FA. 2022. Role of mineral nutrients in biological nitrogen fixation. In Sustainable Plant Nutrition: Molecular Interventions and Advancements for Crop Improvement, eds. Aftab T, Hakeem KR. vol. 2. UK: Academic Press. pp. 87–106. https://doi.org/10.1016/B978-0-443-18675-2.00004-3