THE POTENTIAL OF POMELO (CITRUS MAXIMA) PEELS
AS AN ALTERNATIVE FERTILIZER
OF TOMATO PLANTS
ANGELO BERGANIO
JUSTINDALE GUNDRAN
APRIL FRANCESCA LUA
ARINGAY NATIONAL HIGH SCHOOL
POBLACION, ARINGAY, LA UNION
RESEACRH CAPSTONE
SCIENCE, TECHNOLOGY, ENGINEERING AND MATHEMATICS
MARCH 2019
APPROVAL SHEET
This research study entitled “THE POTENTIAL OF POMELO
(Citrus maxima) PEELS AS AN ALTERNATIVE FERTILIZER OF TOMATO
PLANTS”, prepared and submitted by APRIL FRANCESCA LUA,
ANGELO BERGANIO AND JUSTINDALE GUNDRAN, in partial
fulfillment of the requirements in RESEARCH CAPSTONE, has
been examined and is hereby recommended for oral
examination.
MARIZA G. MAPALO
Adviser
RESEARCH READING COMMITTEE
LUCITO F. FERRER
Chairman
JOVELYN D. AYANG-ANG BRIAN F. CAÑERO
Member Member
MELANIE B.BERNALDEZ AURIE AMOR T. QUIÑONES
Member Member
Approved by the Committee on Oral Examination on
February 26, 2018 with a grade of _______%.
LUCITO F. FERRER
Chairman
JOVELYN D. AYANG-ANG BRIAN F. CAÑERO
Member Member
MELANIE B.BERNALDEZ AURIE AMOR T. QUIÑONES
Member Member
Accepted in partial fulfimment of the requirements in
RESEARCH CAPSTONE for SCIENCE, TECHNOLOGY, ENGINEERING AND
MATHEMATICS, ARINGAY NATIONAL HIGH SCHOOL - SENIOR HIGH
SCHOOL, SCHOOL YEAR 2018-2019.
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TABLE OF CONTENTS
TITLE PAGE . . . . . . . . . . . . . . . . . . . . . . i
APPROVAL SHEET . . . . . . . . . . . . . . . . . . . . ii
ACKNOWLEDGEMENTS . . . . . . . . . . . . . . . . . . . viii
DEDICATION . . . . . . . . . . . . . . . . . . . . . . ix
LIST OF TABLES . . . . . . . . . . . . . . . . . . . . v
LIST OF FIGURES . . . . . . . . . . . . . . . . . . .. vi
ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . x
CHAPTER
1 INTRODUCTION
Situational Analysis . . . . . . . . . . . . 1
Framework of the Study . . . . . . . . . . . 4
Objectives of the Study . . . . . . . . . .
Null Hypothesis . . . . . . . . . . . . . . 6
Significance of the Study . . . . . . . . .
Scope and Limitation . . . . . . . . . .. . 7
Time and Location . . . . . . . . . . . . .7
Definition of Terms . . . . . . .. . . . . .7
2 METHODOLOGY
Materials . . . . . . . . . . . . . . . . . .10
iii
Research Design . . . . . . . . . . . . . . .10
Collection and Preparation of
Plant Material . . . . . . . . . . . . . . .11
Preparation of Pomelo (C. maxima) peels . . .11
Preparation of Soil and Plant . . . . . . . .11
Soil and Plant test . . . . . . . . . . . . .12
Application of the Test Substance (Plant) . .12
Data Gathered . . . . . . . . . . . . . . . .12
Data Analysis . . . . . . . . . . . . . . . .13
3 RESULTS AND DISCUSSION . . . . . . . . . . . . . .14
4 SUMMARY, CONCLUSIONS AND RECOMMENDATION
Summary . . . . . . . . . . . . . . . . . . .18
Conclusions . . . . . . . . . . . . . . . . .20
Recommendations . . . . . . . . . . . . . . .20
LITERATURE CITED . . . . . . . . . . . . . . . . . . .21
APPENDICES
A Computation of T-value between the significant
difference of commercial fertilizer
(Harvester)and alternative fertilizer
(Pomelo peels) . . . . . . . . . . . . . .. .23
B Pictures . . . . . . . . . . . . . . . . . ..24
iv
CURRICULUM VITAE . . . . . . . . . . . . . . . .. . . .26
LIST OF TABLES
TABLE no.
1 Length of stem of tomato plant
in every week in various treatments . . . . .14
2 Length of the stem of tomato plant
after three weeks in various treatments . .. 15
3 Significant difference between Commercial
fertilizer and Alternative fertilizer
(Pomelo peels)in terms of length
of stem of Tomato plants . . . . . . . . . .16
v
LIST OF FIGURES
FIGURE no.
1 Conceptual paradigm showing the Independent and
Dependent variables of the study . . . . . . .5
2 Length of the stem of Tomato plants
after three weeks in various treatments .... 15
vi
ACKNOWLEDGEMENT
To the beloved subject teacher in Research CAPSTONE,
Mrs. Mariza Mapalo, for her guidance and support to our
ideas during the work of the study. The critique made by
Mrs. Mapalo in the study did help the study to be fully-
built and concrete.
To the ever-supporting adviser of STEM-12 Newton, Mrs.
Aurie Amor Quiñones, for also guiding the researchers in the
study especially in the computation of the data and for
advices on improving our research successfuly.
To the classmates, especially to Ms. Bethee Mae Balanag
for lending the researchers her knowledge in computing the
significant difference of the study. Without her help, the
researchers might not be able to finish the study.
To the ever supporting principal, Dr. Adela C. Libunao,
for encouraging the students in doing their best in her best
way. Also, for the hardworking assistant principal, Mrs.
Sylvia Milan, for giving supportive comments during the
experimentation.
vii
To their family, for the unwavering support, patience
and understanding during the exhausting, difficult times
that this research was conducted and written.
AFL, AB and JD
To
You
Who
Love
To investigate, explore and discover,
This written work
Is
For
You
viii
ABSTRACT
Most plants needed the three macronutrients namely:
phosphorus, nitrogen and potassium. According to [ CITATION
Moo13 \l 1033 ] of Michigan State University, a medium-sized
pomelo contains 1315 milligrams of potassium, 37% of daily
value. One component needed to make a good fertilizer.
The main purpose of the study is to formulate the
potential of pomelo (citrus maxima) peels in fertilizing
the soil and increasing the growth process of the plants.
Clean pomelo (C. maxima) peels were gathered from the
plant. The peels of pomelo were washed under clean, running
water. Afterwards, the diced peels were transferred to a
clean container. These treatments were administered every
seven (7) days for each treatment.
The data revealed that the pomelo peels gained the highest
mean signifying that it is an effective fertilizer to tomato
plants. IN the study, there is no significant difference among
the treatments which means that they are equally effective as
fertilizers.
Keywords: Citrus maxima, Peels, Tomato plants, and Fertilizer.
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