Soil Nutrient Balance at Different Spatial Scales: Examining Soil Fertility Management and Sustainability of Mixed Farming Systems in Ethiopia
eBook - PDF

Soil Nutrient Balance at Different Spatial Scales: Examining Soil Fertility Management and Sustainability of Mixed Farming Systems in Ethiopia

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  1. 142 pages
  2. English
  3. PDF
  4. Available on iOS & Android
eBook - PDF

Soil Nutrient Balance at Different Spatial Scales: Examining Soil Fertility Management and Sustainability of Mixed Farming Systems in Ethiopia

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About this book

Soil nutrient balances are used as indicators of sustainability: from the sum of nutrient inputs and outputs it is possible to define agroecosystems as accrediting, balanced or impoverished. The value of such approaches increases if nutrient balances are related to nutrient stocks in order to estimate the fraction used per cropping cycle to offset potentially negative balances. This thesis reports the results of nutrient balances and soil fertility management studies at different spatial scales (i.e. national, state, farming system/watershed, farm and field). The overall goal was to examine soil fertility management and sustainability of smallholders' mixed farming systems in Ethiopia (at different spatial scales) using nutrient balances as an indicator.NĂ€hrstoff-Bilanzen werden benutzt als Indikatoren der Nachhaltigkeit von Agroökosystemen: Auf Grund der Bilanz von EintrĂ€gen und AustrĂ€gen von NĂ€hrstoffen können Agroökosysteme als anreichernd, ausgeglichen oder verarmend gegliedert werden. Der Wert dieses Ansatzes lĂ€sst sich verbessern, wenn die Bilanzen zu den BodenvorrĂ€ten in Beziehung gesetzt werden, also der Anteil des Bodenvorrats, der zur Kompensation negativer Bilanzen pro Anbauzyklus erforderlich ist, bestimmt werden kann. Die vorliegende Dissertation berichtet ĂŒber Ergebnisse von NĂ€hrstoff-Bilanzen in unterschiedlichen rĂ€umlichen Skalen (Staat, LĂ€nder, Wassereinzugsgebiet, Farm, Feld). Das ĂŒbergeordnete Ziel war es, das Bodenfruchtbarkeits Management und die Nachhaltigkeit von gemischten Anbausystemen von Kleinbauern in Äthiopien (in unterschiedlichen Raumskalen) mit Hilfe der NĂ€hrstoffbilanzen als Indikator zu bewerten.

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Information

Publisher
Cuvillier Verlag
Year
2005
Print ISBN
9783865375339
eBook ISBN
9783736915336
Edition
1

Table of contents

  1. Contents
  2. List of Figures Page
  3. List of Tables Page
  4. List of Abbreviations and Symbols
  5. I Introduction