Below is a complete undergraduate thesis proposal framework for the development of BioGrow™ SOILas a soil conditioner and microbial-support formulation for Aquilaria production.

I would frame the study as a product-development and formulation optimization thesis, rather than claiming in advance that the product increases agarwood yield. That makes the research more scientifically defensible.

UNDERGRADUATE THESIS PROPOSAL

Proposed Title

Development and Evaluation of BioGrow™ SOIL: An Organic Soil Conditioner and Microbial-Support Formulation for Improving Soil Properties and Early Growth of Aquilaria spp.

Alternative title

Formulation, Characterization, and Preliminary Agronomic Evaluation of BioGrow™ SOIL for AquilariaPlantation Soil Management

ABSTRACT

This study proposes the development of BioGrow™ SOIL, an organic soil conditioner and microbial-support formulation intended for use in Aquilaria spp. production. The product will combine stabilized organic matter, vermicompost, biochar, humic and fulvic substances, mineral soil-conditioning components, and selected beneficial microorganisms.

The study will focus on formulation development, physicochemical characterization, microbial viability, product stability, and preliminary evaluation of the formulation’s effects on selected soil properties and early Aquilaria growth. Several formulation treatments will be prepared by varying the proportions of the major organic and soil-conditioning components. The formulations will be evaluated based on pH, moisture content, organic matter, organic carbon, N-P-K content, bulk density, water-holding characteristics, and other appropriate soil-quality indicators. Where a microbial component is included, viable microbial counts and contamination screening will also be conducted.

A controlled pot experiment will subsequently evaluate selected formulations using young Aquilaria plants. Plant height, stem diameter, leaf number, biomass, and selected soil parameters will be measured over the experimental period.

Data will be analyzed using appropriate descriptive statistics and analysis of variance. The formulation demonstrating the best combination of physicochemical quality, microbial stability, safety, and plant/soil response will be identified as the prototype BioGrow™ SOIL formulation.

The study is intended to provide a scientific foundation for subsequent formulation optimization, field validation, shelf-life testing, and potential commercial development.

Keywords: BioGrow™ SOIL, Aquilaria, soil conditioner, biochar, vermicompost, humic substances, microbial inoculant, rhizosphere, soil health

CHAPTER 1 INTRODUCTION

1.1 Background of the Study

Agarwood-producing trees of the genus Aquilaria are increasingly cultivated as plantation crops because of the high-value aromatic resin-containing wood associated with agarwood and oud products. Successful plantation establishment, however, depends not only on tree genetics and management but also on the quality and biological condition of the soil supporting the root system.

Soil degradation, low organic matter, poor aggregation, inadequate moisture retention, nutrient imbalance, and reduced biological activity can negatively affect root development and tree establishment. Consequently, soil management is an important component of sustainable Aquilaria production.

Organic amendments and beneficial microorganisms have attracted considerable interest as tools for improving soil biological and physical properties. Research on Bacillus and Trichoderma demonstrates their potential roles in plant growth promotion and plant–microbe interactions, although their performance depends strongly on the host plant, soil environment, formulation, and application conditions. (Frontiers)

BioGrow™ SOIL is therefore conceptualized as a soil-health platform, rather than as a direct agarwood-induction product. The proposed formulation combines organic matter, biochar, humic substances, mineral components, and selected beneficial microorganisms in an effort to provide a more favorable rhizosphere environment.

The Philippine regulatory environment also makes formulation classification important. Existing regulatory guidance distinguishes soil conditioners, organic fertilizers, biofertilizers, microbial inoculants, and other product categories, with corresponding requirements for analysis and product registration. (Fertilizer and Pesticide Authority)

The development of BioGrow™ SOIL will therefore require both scientific formulation optimization and quality-control characterization.

1.2 Statement of the Problem

This study seeks to develop and preliminarily evaluate BioGrow™ SOIL as an organic soil conditioner and microbial-support formulation for Aquilaria spp.

Specifically, it seeks to answer the following questions:

What formulation of BioGrow™ SOIL provides the most suitable combination of organic matter, biochar, humic substances, mineral components, and microbial-support materials?
What are the physicochemical characteristics of the developed formulations in terms of:
- pH;
- moisture content;
- organic matter;
- organic carbon;
- total nitrogen;
- available phosphorus;
- potassium;
- bulk density; and
- water-holding capacity?
Can the selected microbial component maintain acceptable viability during the experimental storage period?
Does application of BioGrow™ SOIL affect selected soil properties?
Does BioGrow™ SOIL influence early growth of Aquilaria seedlings compared with an untreated control?
Which formulation provides the best overall combination of product quality, soil response, and plant-growth response?
Is the selected formulation technically suitable for further product-development and field-validation studies?

1.3 Objectives

General Objective

To develop and preliminarily evaluate BioGrow™ SOIL, an organic soil conditioner and microbial-support formulation intended for Aquilaria spp. production.

Specific Objectives

The study aims to:

formulate different BioGrow™ SOIL prototypes;
characterize the physicochemical properties of each formulation;
determine the organic-matter and nutrient characteristics of the formulations;
evaluate microbial viability where applicable;
evaluate selected soil-quality parameters following product application;
determine the effects of selected formulations on early Aquilaria growth;
identify the most promising formulation based on predefined selection criteria; and
develop preliminary quality-control specifications for future commercial development.

1.4 Hypotheses

Null Hypothesis

There are no significant differences among BioGrow™ SOIL formulations and the untreated control in selected soil properties and early growth parameters of Aquilaria seedlings.

Alternative Hypothesis

At least one BioGrow™ SOIL formulation produces significant differences in selected soil properties and/or early growth parameters of Aquilaria seedlings compared with the untreated control.

1.5 Significance of the Study

Agarwood growers

The study may provide a locally developed soil-management formulation specifically designed around the requirements of Aquilaria cultivation.

Nursery operators

A validated soil-conditioning formulation could potentially improve the consistency of nursery substrate management.

Researchers

The study can provide baseline data for subsequent research on Aquilaria rhizosphere management.

Agricultural product developers

The work establishes a methodology for converting laboratory formulation concepts into a controlled prototype.

Sustainable agriculture

The use of organic matter, biochar, and biological components may contribute to more integrated approaches to soil management.

Future commercial development

The study may serve as a preliminary technical foundation for subsequent pilot-scale manufacturing, stability testing, field trials, and regulatory evaluation.

1.6 Scope and Delimitations

The study will focus on:

development of BioGrow™ SOIL prototypes;
laboratory characterization;
microbial viability where applicable;
controlled pot experimentation;
selected soil parameters;
early growth of Aquilaria seedlings; and
preliminary product-quality assessment.

The study will not attempt to demonstrate:

increased agarwood resin yield;
increased oud-oil yield;
superior agarwood quality;
commercial plantation profitability;
long-term tree performance;
disease-control efficacy; or
commercial-scale manufacturing economics.

These should be subjects of subsequent studies.

CHAPTER 2 REVIEW OF RELATED LITERATURE

2.1 Soil Health and Tree Growth

Soil physical, chemical, and biological characteristics interact to determine the environment in which plant roots develop.

Important properties include:

organic matter;
soil structure;
porosity;
water availability;
pH;
nutrient availability;
microbial activity.

A soil-conditioning product should therefore be evaluated using multiple parameters rather than a single plant-growth measurement.

2.2 Organic Matter

Organic matter contributes to soil structure, nutrient cycling, water retention, and microbial habitat.

Compost and vermicompost may provide both organic carbon and biologically active components.

For BioGrow™ SOIL, organic matter serves as the fundamental structural component of the formulation.

2.3 Biochar

Biochar is a carbon-rich material produced through thermal conversion of biomass under limited oxygen.

Its physical properties can influence:

water retention;
nutrient adsorption;
soil aggregation;
microbial habitat; and
carbon storage.

However, biochar performance varies substantially according to feedstock and production conditions. Consequently, the BioGrow™ SOIL study should characterize the actual biochar used rather than assume uniform behavior.

2.4 Humic and Fulvic Substances

Humic materials may interact with mineral nutrients and soil particles and can influence nutrient availability and soil aggregation.

BioGrow™ SOIL therefore incorporates humic and fulvic fractions as functional components rather than treating them simply as fertilizer nutrients.

2.5 Beneficial Microorganisms

Potential microbial components include selected strains of:

Bacillus spp.; and
Trichoderma spp.

The literature supports considerable interest in these microbial groups for plant growth and soil biological functions, although results are highly dependent on environmental conditions and strain-specific characteristics. (Frontiers)

Therefore, this thesis should test actual viability and formulation compatibility, rather than assuming that the presence of a microorganism automatically produces a beneficial agronomic effect.

2.6 Microbial Formulation Considerations

A microbial soil product requires consideration of:

strain identity;
viability;
carrier compatibility;
moisture;
pH;
storage temperature;
contamination;
shelf life.

Philippine regulatory guidance for microbial inoculants/biological fertilizers includes requirements concerning guaranteed microbial counts, laboratory analysis, samples, pathogen testing, and expiration information. (Fertilizer and Pesticide Authority)

This makes microbial quality control an important component of the proposed study.

2.7 Soil Amendments and Aquilaria

Aquilaria trees require suitable physical and biological soil conditions for establishment and development.

However, a major research gap remains in developing formulations specifically designed for Aquilaria plantation soil management.

BioGrow™ SOIL is proposed to address this gap by combining several soil-conditioning functions into one prototype.

2.8 Conceptual Framework

INPUT

Raw Materials

Compost
Vermicompost
Biochar
Humic substances
Fulvic substances
Mineral components
Zeolite
Microbial carrier
Beneficial microorganisms

↓

PROCESS

Formulation Development

→ Mixing
→ Conditioning
→ Granulation
→ Drying/stabilization
→ Quality testing
→ Microbial viability testing
→ Storage stability evaluation

↓

APPLICATION

BioGrow™ SOIL

↓

SOIL RESPONSE

pH
Organic matter
Moisture
Nutrient availability
Water-holding capacity
Soil structure indicators

↓

PLANT RESPONSE

Height
Stem diameter
Leaf number
Leaf area
Biomass
Root development

↓

OUTPUT

Optimized BioGrow™ SOIL Prototype

↓

FUTURE APPLICATION

Pilot production → field validation → regulatory assessment → commercial development

CHAPTER 3 METHODOLOGY

3.1 Research Design

The study will employ a Research and Development (R&D) design combined with a Completely Randomized Design (CRD) for the controlled plant experiment.

The research will consist of four major phases:

Phase I

Raw-material selection and characterization.

Phase II

Formulation development and laboratory evaluation.

Phase III

Controlled Aquilaria pot experiment.

Phase IV

Optimization and selection of the prototype formulation.

3.2 Proposed Experimental Treatments

A practical undergraduate design is to evaluate four formulations plus a control.

Treatment	Description
T0	Control — no BioGrow™ SOIL
T1	Low organic/microbial formulation
T2	Intermediate formulation
T3	High organic/biochar formulation
T4	Optimized prototype formulation

An alternative is to test three formulation prototypes plus control if laboratory resources are limited.

The exact percentages should be finalized after preliminary compatibility testing rather than treating the previously proposed commercial formulation as experimentally proven.

3.3 Proposed Prototype Formulation

A starting formulation matrix can be constructed around the following target architecture:

Component	Development Range
Mature compost	25–40%
Vermicompost	10–20%
Biochar	10–20%
Humic material	5–10%
Fulvic material	1–5%
Mineral conditioner	5–10%
Zeolite	3–8%
Seaweed-derived component	1–5%
Microbial carrier	3–8%

The balance will be adjusted with a suitable carrier/binder.

This approach is preferable to locking the thesis into a single formulation because the primary research question is which formulation performs best.

3.4 Raw-Material Preparation

All raw materials will be:

obtained from identified sources;
inspected for contamination;
dried or conditioned where necessary;
screened for appropriate particle size;
weighed according to treatment;
characterized before formulation.

Compost and vermicompost should be mature and stable before use.

Biochar should be screened and tested for relevant chemical characteristics and contaminants.

3.5 Formulation Procedure

Step 1 — Raw-material preparation

Each ingredient will be weighed according to the formulation matrix.

Step 2 — Dry blending

Dry components will be mixed until homogeneous.

Step 3 — Organic fraction incorporation

Compost and vermicompost will be incorporated gradually.

Step 4 — Humic/fulvic incorporation

Humic and fulvic materials will be distributed uniformly.

Step 5 — Microbial incorporation

If live microorganisms are used, they should be introduced under conditions designed to minimize loss of viability.

Step 6 — Granulation

The material may be converted into granules using an appropriate laboratory-scale granulation method.

Step 7 — Stabilization

The product will be conditioned to the target moisture range without exposing live microorganisms to conditions that significantly reduce viability.

Step 8 — Packaging

Samples will be placed in labeled, moisture-resistant containers.

3.6 Laboratory Analyses

Each formulation should undergo:

Physical analyses

appearance;
color;
odor;
moisture;
particle size;
bulk density;
flowability.

Chemical analyses

pH;
organic matter;
organic carbon;
total nitrogen;
available phosphorus;
potassium;
C:N ratio.

Biological analyses

Where applicable:

microbial identity;
viable count;
contamination screening;
stability of microbial population.

3.7 Soil Analysis

Before treatment application, soil samples will be collected and analyzed for:

pH;
organic matter;
available N;
available P;
exchangeable/available K where feasible;
moisture;
bulk density;
water-holding capacity.

Post-treatment soil measurements will be compared with baseline measurements.

3.8 Aquilaria Pot Experiment

Uniform young Aquilaria seedlings will be selected.

Seedlings should be as similar as practical in:

age;
height;
stem diameter;
health;
container size.

Each plant will be assigned randomly to an experimental treatment.

Suggested design

5 treatments × 6 replicates = 30 plants

If resources permit:

5 treatments × 10 replicates = 50 plants

A larger number of replicates improves the ability to detect treatment differences.

3.9 Experimental Setup

Each plant will be grown under controlled or standardized conditions.

Environmental variables should be kept as consistent as possible:

light;
irrigation;
pot size;
soil/substrate;
temperature;
pest management;
fertilization.

No additional fertilizer should be introduced unless it is part of the experimental protocol.

3.10 Application

BioGrow™ SOIL will be applied according to the experimental treatment rate.

The product should be applied around the root zone rather than directly against the stem.

The same application procedure will be used for all BioGrow treatments.

3.11 Data Collection

Plant Height

Measured from the soil surface to the highest growing point.

Frequency: weekly or every two weeks.

Stem Diameter

Measured at a predetermined height above the soil surface using a digital caliper.

Leaf Number

The number of fully developed leaves will be recorded.

Leaf Area

If equipment is available, leaf area can be measured using a leaf-area meter or digital image analysis.

Root Parameters

At the conclusion of the experiment:

fresh root weight;
root length;
root volume where feasible;
dry root weight.

Biomass

At harvest:

shoot fresh weight;
root fresh weight;
shoot dry weight;
root dry weight;
total dry biomass.

3.12 Soil Data Collection

Soil samples will be collected at:

T0 — Before treatment

T1 — Mid-experiment

T2 — Final evaluation

Parameters:

pH;
moisture;
organic matter;
available nutrients;
bulk density;
water-holding capacity.

3.13 Microbial Viability Study

If BioGrow™ SOIL contains live microorganisms, samples will be tested at predetermined storage intervals.

Suggested sampling:

Time	Test
Day 0	Baseline viable count
Day 30	Viability
Day 60	Viability
Day 90	Viability

If the undergraduate thesis timeline permits, longer stability monitoring should be continued.

3.14 Product Stability

Samples will be stored under defined conditions.

Parameters monitored:

appearance;
moisture;
pH;
odor;
microbial viability;
caking;
contamination.

The purpose is to determine whether the prototype maintains acceptable quality during the study period.

3.15 Product Safety

Testing should include, where laboratory access permits:

heavy metals;
microbial pathogens;
phytotoxicity;
foreign materials.

This is particularly important because the eventual commercial product will require appropriate quality and regulatory assessment.

3.16 Phytotoxicity Test

Before the main pot experiment, a preliminary phytotoxicity test may be performed.

Seedlings or a suitable indicator plant can be exposed to different product concentrations.

Parameters:

germination;
root growth;
shoot growth;
visible injury.

A formulation producing toxicity should be reformulated before the main experiment.

3.17 Statistical Analysis

Data will be summarized using:

mean;
standard deviation;
coefficient of variation.

For treatment comparison:

One-way Analysis of Variance (ANOVA) will be used where assumptions are satisfied.

If significant differences occur:

Tukey’s HSD or another appropriate post-hoc test will be used.

The level of significance will be:

α = 0.05

If assumptions of normality or homogeneity of variance are violated, appropriate transformations or non-parametric alternatives will be considered.

3.18 Proposed Statistical Model

For a completely randomized design: $Y_{i j} = μ + τ_{i} + ϵ_{i j}$

Where:

$Y_{i j}$ = observed response;
$μ$ = overall mean;
$τ_{i}$ = effect of treatment;
$ϵ_{i j}$ = experimental error.

3.19 Formulation Selection Index

To identify the best prototype, the study can develop a simple BioGrow™ SOIL Performance Index.

Example:

Criterion	Weight
Soil improvement	25%
Plant-growth response	25%
Product physicochemical quality	20%
Microbial viability	15%
Stability	10%
Production practicality	5%
Total	100%

This converts the thesis from merely asking “Which treatment produced the tallest tree?” into a genuine product-development study.

CHAPTER 4 EXPECTED RESULTS

The study is expected to produce:

1. Optimized formulation

One formulation is expected to demonstrate a favorable balance of organic matter, soil-conditioning characteristics, microbial compatibility, and production practicality.

2. Improved soil characteristics

Selected BioGrow™ SOIL treatments may improve some combination of:

soil organic matter;
moisture retention;
nutrient availability;
soil structure indicators.

3. Improved early tree growth

The best formulation may produce higher:

height increment;
stem diameter;
leaf production;
root development;
biomass.

However, these outcomes should remain hypotheses until experimentally demonstrated.

4. Microbial stability

The study is expected to identify whether the selected microbial component remains viable during the experimental storage period.

5. Preliminary product specification

The thesis will establish a scientific basis for:

target moisture;
pH;
organic matter;
N-P-K;
microbial count;
particle size;
storage requirements.

CHAPTER 5 PRODUCT DEVELOPMENT OUTPUT

The major practical output will be a prototype BioGrow™ SOIL technical specification.

Proposed Prototype Specification

Product: BioGrow™ SOIL

Product class: Soil conditioner / microbial-support amendment

Target crop: Aquilaria spp.

Physical form: Granular

Target color: Dark brown to black

Target pH: Approximately 5.5–7.5

Target moisture: ≤15%

Organic matter: ≥40% target

Total N: approximately 2–3% target

P₂O₅: approximately 1.5–2.5% target

K₂O: approximately 2–3% target

Microbial count: To be established according to the validated organism/strain and applicable standard

These are development targets, not final guaranteed analysis.

PROPOSED LABEL CONCEPT

BioGrow™ SOIL

Organic Soil Conditioner & Microbial-Support Formulation

Build the Soil. Support the Roots. Grow the Future.

Designed to support:

Soil organic matter
Root-zone conditions
Nutrient cycling
Moisture management
Beneficial rhizosphere microorganisms

For agricultural use only.

Final label claims should be based on validated test results and the applicable Philippine regulatory classification.

COMMERCIAL DEVELOPMENT PATHWAY

The thesis should deliberately stop at prototype validation, after which commercial development proceeds through:

Laboratory Formulation

↓

Prototype Product

↓

Phytotoxicity Testing

↓

Pot Experiment

↓

Stability Testing

↓

Pilot Manufacturing

↓

Multi-location Field Trial

↓

Regulatory Classification/Registration

↓

Commercial Production

This is particularly important because Philippine requirements differ according to whether a product is classified as a soil conditioner, fertilizer, biofertilizer, microbial inoculant, biostimulant, or another regulated agricultural input. Current FPA materials provide separate requirements for these categories, while organic-fertilizer regulation has also involved the Bureau of Agriculture and Fisheries Standards. (Fertilizer and Pesticide Authority)

The FPA’s current registered-products database also shows that soil conditioners and biofertilizers are already represented as distinct product categories in the Philippine market, providing useful benchmarking information for eventual commercialization. (Fertilizer and Pesticide Authority)

PROPOSED THESIS WORK PLAN

Activity	Month 1	2	3	4	5	6
Literature review	●	●
Raw-material sourcing	●	●
Preliminary formulation		●	●
Laboratory characterization		●	●
Microbial testing			●	●
Pot experiment			●	●	●
Data collection			●	●	●
Statistical analysis					●
Product optimization					●	●
Thesis writing				●	●	●
Final presentation						●

PROPOSED BUDGET

An undergraduate-scale budget can be structured as follows:

Item	Estimated Allocation
Raw materials	₱8,000
Pots/growing materials	₱4,000
Aquilaria seedlings	₱5,000
Soil/substrate	₱2,500
Laboratory chemical analyses	₱10,000
Microbial analyses	₱10,000
NPK/organic-matter analysis	₱8,000
Packaging/formulation materials	₱3,000
Measuring equipment/consumables	₱4,000
Documentation/printing	₱2,500
Contingency	₱6,000
Estimated total	₱63,000

Actual costs should be replaced with quotations from the university laboratory and suppliers.

EXPECTED THESIS DELIVERABLES

At completion, the student should have:

BioGrow™ SOIL prototype formulation
Complete formulation-development methodology
Raw-material specifications
Physicochemical characterization
Microbial viability data, if applicable
Stability observations
Soil-response data
Aquilaria growth data
Statistical analysis
Optimized prototype
Preliminary technical data sheet
Preliminary label specification
Quality-control protocol
Recommendations for field testing
Commercial-development roadmap

Recommended Final Thesis Title

For an undergraduate thesis, I recommend using:

“Development and Preliminary Evaluation of BioGrow™ SOIL: An Organic Soil Conditioner and Microbial-Support Formulation for Improving Soil Properties and Early Growth of Aquilaria spp.”

This title is strong because it does not overclaim commercial efficacy or agarwood-resin production. It clearly establishes three measurable research areas: formulation development, soil properties, and early tree growth.