ABSTRACT
The objective of this study was to evaluate the effect
of wood ash, (WA) coconut ash (CA) and rice husk ash (RHA)on the soil
physicochemical properties and dry matter. The experiment was laid out in
randomized complete block design with the four treatment replicated five times.
The treatment includes control (O), wood ash coconut ash and rice husk ash
(RHA). Maize variety Oba super II hybrid was used as test crop for the
experiment and was planted at the rate of two seeds per hole.
The result showed
increased soil pH in ash amended plots relative to the control. Similarly the
exchangeable bases (Ca, Mg, Na, K) had higher levels in ash amended plots
compared to the control. Result of the study also showed higher Tp, Om, total N
and Available P values in ash amended soil. Tp improvement in soil properties
led to higher shoot and grain yield in ash amended soil. Ash improves soil
physical and chemical properties and crop yield.
EFFECT OF
ASH FROM DIFFERENT SOURCES ON PHYSICO-CHEMICAL PROPERTIES AND SHOOT DRY MATTER
OF MAIZE
A RESEARCH PROJECT SUBMITTED TO THE
DEPARTMENT OF SOIL AND ENVIRONMENT MANAGEMENT FACULTY OF AGRICULTURE AND NATURAL
RESOURCE MANAGEMENT
IN PARTIAL FULFILLMENT OF THE REQUIREMENT
FOR THE AWARD OF BACHELOR OF SCIENCE (B. AGRIC)
TABLE OF CONTENTS
Title
Page……………………………………………………….. i
Certification page………………………………………………. ii
Dedication……………………………………………………… iii
Acknowledgement…………………………………………….. iv
Abstract………………………………………………………… v
Table of contents…………………………………………….. vi
CHAPTER ONE
1.0
INTRODUCTION………………………………………. 1
1.1 The Specific Objectives of The Study ………………….. 2
CHAPTER TWO
2.0 LITERATURE
REVIEW
2.1 Importance of Ash In Agricultural Production…………….. 3
2.3 The Use of Ash As Fertilizer………………………………. 6
2.5 Chemical Characteristics of Soil Amended With ASH.. 7
2.6 Effect of the soil amended with Ash on maize
grain
yield………………………………………………….. 9
2.7 Ash As A Liming Agents …………………………………. 10
2.8 Effect Of Ash Application On Soil………………………… 11
2.9 Enhanced Soil Microbial Activity………………………… 12
2.10 Sources Of Ash …………………………………………… 13
2.11 Effect Of Rice Husk Ash On Chemical Properties…….. 14
CHAPTER
THREE
3.0 MATERIALS AND METHODS
3.1 The Study Site ………………………………………. 15
3.2 Land preparation……………………………………… 15
3.3 Treatment …………………………………………….. 16
3.4 Experiment design and maize planting…………… 16
3.4.1 Sources
of the Material……………………………… 17
3.1.1 Agronomic Data ……………………………………… 18
3.6 Soil Sampling…………………………………………. 18
3.7 Physical Soil Properties …………………………….. 18
3.8 Soil Chemical Properties …………………………… 19
3.9 Data Analysis…………………………………………. 19
CHAPTER FOUR
4.1 RESULTS AND DISCUSSION
4.0 Effect of treatments on some soil
physical………….
Properties…………………………………………….. 20
4.1.1 Dispersion Ratio………………………………………..24
4.2 Hydraulic Conductivity……………………………….. 24
4.1.2 Bulk Density……………………………………………25
4.1.3 Total Porosity………………………………………… 25
4.3.1 .1Soil pH of Water………………………………….. 27
4.3.2 Organic matter………………………………………… 27
4.2.4 Total Nitrogen………………………………………. 28
4.2.5 Available Phosphorus………………………………. 28
4.3 Effect of Treatments on Soil exchangeable
Cations………………………………………………. 29
4.4 Effect of different ash on plant
height and shoot dry matter
Plant Height…………………………………………… 33
CHAPTER FIVE
5.0 Conclusion and Recommendation………………… 35
5.1 Recommendation
…………………………………… 35
REFERENCE………………………………………. 36
APPENDIX I
APPENDIX I I
APPENDIX I II
APPENDIX I v
APPENDIX vI
APPENDIX II
LIST OF TABLE
Table
1 Initial on soil properties………………….. 21
Table 2 Shows nutrient composition of
treatments….. 23
Table
2: Nutrient composition of
treatment …………….. 23
Table
4: Effect of treatments on some
soil physical properties..26
Table 5 : Effect of treatments on pH, om, n and
available p …. 29
Table
6.1 Effects of treatments on soil
chemical…………………31
Table
5 Effects of ash on plant height
and shoot root ………34
Table 5.1 Shows
effect of treatments on plant and shoot dry weight shows effect of treatments
on plant weight land shortly weight…………………………………………………….34
LIST OF FIGURE
Layout
of Field……………………………………………….. 17
EFFECT OF
ASH FROM DIFFERENT SOURCES ON PHYSICO-CHEMICAL PROPERTIES AND SHOOT DRY MATTER
OF MAIZE
DEPARTMENT OF SOIL AND ENVIRONMENT
MANAGEMENT FACULTY OF AGRICULTURE AND NATURAL RESOURCE MANAGEMENT