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COMPARATIVE STUDY ON THE GROWTH AND YIELD OF GROUNDNUT UNDER SEWAGE WATER AND POULTRY MANURE TREATMENT.
ABSTRACT
Meta-analysis is a statistical technique used to analyze large datasets containing results from numerous individual studies. It appears to be a promising approach. This study aimed to conduct a meta-analytic assessment to elucidate the influence of poultry litter (PL) application on crop yield, plant nutrient uptake, and soil fertility as compared to inorganic fertilizer (IF).
natural log of the response ratio was used as effect size (ES) to express differences in the effects of PL and IF. The variances of estimated effects were estimated using within-study and between study variation and were used to calculate a weighting factor. A random-effects model was used to test if the ES was significantly different from zero (α= 0.05). Crop yield was slightly less
when evaluating PL additions during the 1st or 2nd year of application, while significant increases were observed with long-term PL application. Poultry litter influenced plant nutrient uptake with a slightly negative effect being observed for N uptake, but significant positive effects for P and K uptake. Positive effects on soil fertility were also observed with PL significantly increasing CEC, pH and concentration of soil C, P, K, Ca, and Mg compared to IF. Overall, PL can be used as an alternative nutrient source to enhance crop yield, increase plant nutrient uptake, and improve soil fertility.
TABLE OF CONTENT:
CHAPTER ONE
INTRODUCTION
1.1 Background of the Study
1.2 Statement of the Research Problem
1.3 Objectives of the Study
1.4 Significance of the Study
1.5 Research Questions
1.6 Research Hypothesis
1.7 Conceptual and Operational Definition
1.8 Assumptions
1.9 Limitations of the Study
CHAPTER TWO
LITERATURE REVIEW
2.1 Sources of Literature
2.2 The Review
2.3 Summary of Literature Review
CHAPTER THREE
RESEARCH METHODOLOGY
3.1 Research Method
3.2 Research Design
3.3 Research Sample
3.4 Measuring Instrument
3.5 Data Collection
3.6 Data Analysis
3.7 Expected Result
CHAPTER FOUR
DATA ANALYSIS AND RESULTS
4.1 Data Analysis
4.2 Results
4.3 Discussion
CHAPTER FIVE
SUMMARY AND RECOMMENDATIONS
5.1 Summary
5.2 Recommendations for Further Study
References
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