Soil fertility decline is a big issue in the Agriculture of Ethiopia. The depletion of soil fertility is the main problem to sustain agricultural production and productivity in many countries. Soils in Ethiopian have low levels of plant nutrients due to their removal by erosion and leaching by high rainfall. One of the major constraints for crop production in Ethiopia is improper nutrient management. Organic fertilizer improves physical and biological activities of soil but they have comparatively low in nutrient content, so larger quantity is required for plant growth. However, inorganic fertilizer is usually immediately and fast containing all necessary nutrients that are directly accessible for plants, but the continuous use of inorganic fertilizers alone causes soil organic matter: degradation, soil acidity, and environmental pollution.
So the integrated nutrient management system is an alternative system for the sustainable and cost-effective management of soil fertility by combined apply of inorganic with organic materials resulting in rising soil fertility and productivity without affecting the environment. In this review the improvement of soil fertility and crops production (Girma Chala and Gebreyes Gurmu, 2018) Conducted an experiment on Organic and Inorganic Fertilizer Application and its Effect on Yield of Wheat and Soil Chemical Properties of Nitisols the research finding output at Holetta Agricultural Research Center in 2014 to 2015 these results of soil analysis after harvesting revealed that application of organic fertilizer improved soil pH, OC, total N and available P, the highest wheat grain and biomass yield (6698 kg/ha and 19417 kg/ha respectively) were obtained from the application of 50% VC and 50% N and P followed by full dose of recommended rate N and P from inorganic fertilizer resulting in 6241 kg/ha grain and 18917 kg/ha biomass yields respectively.
The objective of this review has assessed the effects of integrated organic and inorganic fertilizers on soil fertility and productivity. The study revealed that the appropriate application of organic with inorganic fertilizers increases productivity without negative effect on yield quality and improves soil fertility than the values obtained by organic or inorganic fertilizers separately.
Table of Contents
1. INTRODUCTION
2. TO REVIEW THE EFFECT OF INTEGRATED USE OF ORGANIC AND INORGANIC FERTILIZERS
2.1. Soil Fertility and Crop Productivity
2.2. Fertilizer
2.2.1. Organic fertilizer
2.2.1.1. Advantages of Organic Fertilizer
2.2.1.2 Organic matter
2.2.1.2 Manure
2.2.1.3. Compost
2.2.1.4. Crop residue
2.2.1.5. Household Waste and Farmyards
2.2.1.6. Disadvantages of Organic Fertilizer
2.3. Inorganic Fertilizer
2.3.1 Advantages of Inorganic Fertilizer
2.3.2 Disadvantages of Inorganic Fertilizer
2.4. The Effect of Integrated Organic and Inorganic Fertilizer on Productivity and Soil Fertility
2.4.1. Integrated Organic and Inorganic Nutrient Management
2.4.2. Effect of Integrated Organic Fertilizer and Inorganic Fertilizer on Soil Fertility.
2.4.3. Experimental Results on the Effect of Integrated Organic Fertilizer and Inorganic Fertilizer on Crop Productivity
2.4.3.1 Maize
2.4.3.2. Rice
2.4.3.3 Wheat
2.4.3.4. Tomato
2.4.3.5. Teff
3. SUMMARY AND CONCLUSION
4. REFERENCE
Objectives and Topics
This review explores the critical role of integrated nutrient management (INM) in addressing soil fertility decline and enhancing crop productivity in Ethiopia. It investigates the synergistic effects of combining organic amendments, such as compost and manure, with inorganic fertilizers to sustain soil health, improve nutrient use efficiency, and ensure long-term agricultural sustainability amidst rising fertilizer costs and environmental concerns.
- Advantages and disadvantages of sole organic and inorganic fertilizer applications.
- Impact of integrated nutrient management on soil physical, chemical, and biological properties.
- Crop-specific responses (maize, rice, wheat, tomato, teff) to combined fertilizer applications.
- Economic and environmental benefits of balanced nutrient strategies for smallholder farmers.
Excerpt from the Book
2.2.1. Organic fertilizer
Organic fertilizers have the following advantages to improve soil fertility: increasing organic matter in soil which improves the soil structure, creating more air space and water retention within the soil and enhances soil nitrogen content, enhanced nutrient availability, releasing nutrients at a slower and more consistent rate, improves nutrient mobilization and Protect the soil against rain and wind erosion (Akhtar, MJ., et al., 2009; Lal, R., 2006; Matsumoto, T. and Yamano, T., 2009; Nyalemegbe, K.K et al., 2009 and Han, S.H et al., 2016) Organic fertilizer enhances soil biological activity and the colonization of mycorrhiza. That enhances mutuality association between fungi and higher plants. Organic fertilizer increase root growth due to enhanced soil structure, promoting soil aggregates, enhances cation exchange capacity (Lal, R., 2006). Organic fertilizer acts as a buffering agent against undesirable soil pH fluctuations (Basel, N and Sami, M., 2014) and (Olaniyi, J.O. and Ajibola, A., 2008).
Summary of Chapters
1. INTRODUCTION: Discusses the challenges of declining soil fertility in Ethiopia and the necessity of shifting toward integrated nutrient management to ensure sustainable agricultural production.
2. TO REVIEW THE EFFECT OF INTEGRATED USE OF ORGANIC AND INORGANIC FERTILIZERS: Provides a comprehensive analysis of soil fertility definitions, the properties of various fertilizers, and specific experimental results concerning the integrated use of organic and inorganic inputs on soil health and crop yields.
3. SUMMARY AND CONCLUSION: Synthesizes the review findings, emphasizing that integrated soil fertility management is a superior strategy for enhancing long-term soil productivity and crop yield while minimizing environmental impact.
4. REFERENCE: Contains the exhaustive list of literature and scientific sources cited throughout the review.
Keywords
Soil fertility, Organic Fertilizer, Inorganic Fertilizer, Integrated Nutrient Management, Crop productivity, Ethiopia, Soil organic matter, Nutrient use efficiency, Sustainable agriculture, Farmyard manure, Compost, Crop residue, Soil physical properties, Soil chemical properties, Nutrient depletion.
Frequently Asked Questions
What is the core focus of this review?
The review examines the importance of implementing integrated nutrient management (INM) in Ethiopia to overcome soil fertility challenges and sustain agricultural productivity.
What are the primary themes discussed?
The text focuses on the role of organic amendments, the risks of continuous inorganic fertilizer use, and the synergistic advantages of combining both types for long-term soil health.
What is the primary objective of this research?
The goal is to assess existing scientific studies to determine how the integrated use of organic and inorganic fertilizers can improve soil fertility and increase crop yields in Ethiopian agricultural systems.
Which scientific methods are primarily analyzed?
The work presents a literature review and synthesis of various experimental trials conducted in Ethiopia and elsewhere, evaluating soil physical and chemical parameters, such as pH, organic carbon content, and nutrient availability.
What is covered in the main body of the text?
The main chapters detail the characteristics of organic and inorganic fertilizers, their individual impacts on soil properties, and specific case studies across different crops like maize, wheat, rice, tomato, and teff.
Which keywords best characterize this work?
Key concepts include soil fertility, integrated nutrient management, sustainable agriculture, organic carbon, and the specific application of compost and mineral fertilizers.
Why is sole reliance on inorganic fertilizers problematic according to the text?
Continuous use of inorganic fertilizers alone leads to soil acidity, degradation of soil organic matter, environmental pollution, and loss of soil aggregation, ultimately reducing long-term fertilizer efficiency.
How does the integrated approach affect crop yields?
The review shows that combined applications generally lead to higher grain and biomass yields compared to using organic or inorganic fertilizers alone, as the organic components improve soil structure and nutrient holding capacity while inorganic sources provide immediate nutrient availability.
- Arbeit zitieren
- Mintesinot D. (Autor:in), 2019, The Integrated Use of Organic and Inorganic Fertilizers on Production and Soil Fertility in Ethiopia, München, GRIN Verlag, https://www.grin.com/document/506911
