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Fighting Poverty in Sub-Saharan Africa: The Multiple Roles of Legumes in Integrated Soil Fertility Management

  • Andre Bationo
  • Boaz Waswa
  • Jeremiah M. Okeyo
  • Fredah Maina
  • Job Kihara
  • Uzo Mokwunye

Table of contents

  1. Front Matter
    Pages i-viii
  2. S. M. Nandwa, A. Bationo, S. N. Obanyi, I. M. Rao, N. Sanginga, B. Vanlauwe
    Pages 47-66
  3. N. K. Karanja, J. M. Kimenju, A. O. Esilaba, J. Jefwa, F. Ayuke
    Pages 67-83
  4. D. N. Mugendi, B. S. Waswa, M. W. Mucheru-Muna, J. M. Kimetu
    Pages 85-116
  5. A. Bationo, J. Kimetu, B. Vanlauwe, M. Bagayoko, S. Koala, A. U. Mokwunye
    Pages 117-150
  6. D. N. Mugendi, B. S. Waswa, M. W. Mucheru-Muna, J. M. Kimetu, C. Palm
    Pages 151-173
  7. J. Jansa, A. Bationo, E. Frossard, I. M. Rao
    Pages 201-240
  8. Back Matter
    Pages 243-246

About this book

Introduction

Inclusion of legumes in cropping systems can play an increasingly important role to maintain soil fertility and sustain crop production. Legumes are an important source of nutrition to both humans and livestock by providing the much needed protein, minerals, fiber and vitamins. The sale of legumes seed, leaves and fiber generates income for the marginalized communities especially women in the dryland areas. Cultivation of legumes is essential for the regeneration of nutrient-deficient soils. Legumes can be incorporated into cropping systems as green manure, intercropped or rotated with cereals and as leguminous shrubs in improved fallow systems. By biologically fixing nitrogen (BNF) in the soil, legumes provide a relatively low-cost method of replacing otherwise expensive inorganic nitrogen in the soil. Legumes also improve other soil physical properties, provide ground cover and reduce soil erosion, increase soil organic matter, cation exchange capacity, microbial activity and lowers soil temperature and suppress weeds and pests. All these beneficial effects result in enhanced soil fertility and boosts subsequent cereal crop yields. Legumes therefore play an important role of improving the livelihoods of smallholder farmers around the world. 

Despite the above benefits, production of legumes in SSA is hampered by a number of constraints. Most soils in SSA are deficient in key nutrients especially phosphorus that is essential for proper legume establishment. Other limitations include low soil pH, high salinity, drought and flooding. Legume production is also hindered by new diseases, pests, and weeds, which farmers need to learn how to control if the full benefits of legumes are to be gained. Beyond the abiotic factors are issues of access to inputs (improved seed and fertilizers), markets and access to relevant production information. This book presents a synthesis of research work on legumes and draws attention to the importance of legumes in integrated soil fertility management (ISFM) and poverty alleviation in SSA.

Keywords

Biological Nitrogen Fixation (BNF) Integrated Soil Fertility management (ISFM) Legume-based Cropping Systems Plant Nutrition Sub Saharan Africa (SSA)

Editors and affiliations

  • Andre Bationo
    • 1
  • Boaz Waswa
    • 2
  • Jeremiah M. Okeyo
    • 3
  • Fredah Maina
    • 4
  • Job Kihara
    • 5
  • Uzo Mokwunye
    • 6
  1. 1., Soil Health ProgramAlliance for a Green Revolution in AfricAccraGhana
  2. 2.Inst. International Centre for Trop, Agriculture (TSBF-CIAT)Tropical Soil Biology & FertilityNairobiKenya
  3. 3.Inst. International Centre for Trop, Agriculture (TSBF-CIAT)Tropical Soil Biology & FertilityNairobiKenya
  4. 4., Socio-economics and BiometricsKenya Agricultural Research InstituteNairobiKenya
  5. 5.Inst. International Centre for Tropical, Agriculture (TSBF-CIAT)Tropical Soil Biology & FertilityNairobiKenya
  6. 6.Mokwunye ConsultingAccraGhana

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