Cherry Tomato Germination
The process of growing cherry tomato seeds in standard soil depths for a specific duration to encourage germination before transplanting.
Measuring of Agronomic Parameters
The assessment of cherry tomato growth parameters such as plant height, stem girth, number of fruits, and leaf area at regular intervals; ending after six weeks of observation.
Soil Sampling
The collection of soil samples at the beginning and end of the experiment, including composite sampling and destructive sampling for analysis.
Testing of Soil Samples
The separation of soil samples for NPK and pH level testing, water retention testing, and microbiome testing in specific laboratories. All tests will be conducted in the University of the Philippines Los Baños.
Two-Factor Factorial MANOVA
The test that will be used for statistical data through comparison of means and standard deviation
La Salle Botanical Gardens
lahar-laden soil will be collected from this area
Ramgo Seeds
Cherry tomato seeds will be obtained from this distributor
UPLB Museum of Natural History
 The grown desmodium will be sourced from Pampanga and then will be identified in this area
PlantCulture
Rice hull will be acquired from this area
Two barrel metal retort method
Rice hull biochar will be created through pyrolysis using this method
Control Group
lahar-laden soil and cherry tomatoes
Treatment Groups
lahar-laden soil, cherry tomatoes, and desmodium
lahar-laden soil, cherry tomatoes, and rice hull biochar
lahar-laden soil, cherry tomatoes, rice hull biochar, and desmodium
30 Samples and 3 Samples
Amount of samples from each control and treatment group, which results to 120 samples; however for microbiome X samples will be taken which results to 12 samples
The Issues of Lahar-Laden Soil
poor water retention
lacking microbiome
low fertility
The reason for using companion planting desmodium with cherry tomatoes
This study aims to explore if companion planting desmodium with cherry tomatoes will provide new findings or similar results as the aforementioned papers
The 4 Elements of the Research
Lahar-Laden Soil
Cherry Tomatoes
Desmodium
Rice hull biochar
The aim of the use of biochar
The effects of rice hull biochar on a companion plant system of desmodium-cherry tomato.
The Impacts of Desmodium as a Companion Plant for Cherry Tomato and the Application of Rice Hull Biochar on the Soil Quality of Lahar-laden Sandy Soil.
The Title of the Research
The Limits of the Research
testing will be limited to lahar-laden soil
biochar will be the only type of soil ammendment used
rice hull will be the only material for the biochar
companion planting will be the only planting technique utilized
only cherry tomatoes and desmodium will be used for companion planting
The Data expected
increase the agronomic parameter measurements of the cherry tomatoes
increase the abundance of both bacteria and fungi within lahar-laden soil
increase the soil nutrient content of N, P, K in lahar-laden soil
optimize the soil pH in lahar-laden soil
Independent Variables
Companion Planting and Biochar
Dependent Variables
Soil Microbiome
Water Retention
NPK (Nitrogen, Phosphorus, Potassium)
Agronomic Parameters
pH levels
Research Objective
Observe the effects of utilizing rice hull biochar and companion planting desmodium with cherry tomatoes on the water retention, microbiome, fertility, and nutrient uptake
Research Question
How can a desmodium-cherry tomato companion planting system with rice-hull biochar improve the soil quality of lahar-laden soil?
5 Weeks
The amount of time the cherry tomato seeds will be left to germinate
3-5 cm
The standard soil depth for the cherry tomato seeds
Daily
Amount of times the cherry tomato seeds will be watered in order to encourage germination
1.2% and 3 days
Biochar will be evenly mixed with a mass rate of X% on lahar-laden soil and will be left for X days before transplanting
5 leaves
Seedlings with X leaves will be selected for the potted experiment after germination
30 cm
The distance between the grown desmodium and cherry tomato seedlings
20 cm
Before planting samples will be randomly collected from the lahar-laden soil at a depth of X cm
12 weeks and destructive sampling
At X weeks, after planting, X sampling will be done to collect rhizosphere soil samples from the uprooted cherry tomato plants.
Composite Sampling
X sampling will be done
Sterile Bottles
the soil samples will be contained in this
2 weeks
Agronomic parameters of the cherry tomatoes will be measured every X weeks after transplanting.
Plant Height
Stem Girth
Number of fruits
Leaf area
Agronomic parameters will consist of these features
2 mm mesh
Soil Samples will be sieved using this
Randomized Complete Block Design
This will be conducted as a potted experiment through X with one control group and three treatment groups
Adebajo et al., 2020
The pyrolysis via the two-barrel metal retort method came from this source as well as the measuring of the Agronomic Parameters and Cherry Tomato Germination
Harbur et al., 2023
The randomized complete block design with one control group and three treatment groups came from this source
He et al., 2021 & Shi et al., 2020
only cherry tomato seedlings with five leaves will be chosen for the transplant as it signifies the plant’s first set of true leaves, these sources came from these people; as well was the Setting-up of Control and Treatment Groups
Chinakwe et al., 2019
This source is where the process of Cherry Tomato Germination unfolds as well as soil samples being collected in sterile bottles
Angeles & Cinense, 2022
This source established the soil depths of cherry tomato seeds, collection of rhizosphere soil samples, and the use of a 2 mm mesh to sieve collected soil
True Experimental
The research will be carried out as a X research design in order to obtain quantitative data
Order of Methods
Research Design
Material Sourcing
Cherry Tomato Germnation
Setting-up of Control and Treatment Groups
Measuring of Argonomic Parameters
Soil Sampling
Sample Sizes
Testing of Soil Samples
Data Analysis
30 samples and 3 samples
All of the variables will be tested via X amount of samples from each control and treatment group, resulting in 120 samples with the exception of microbiome. The sampling size for microbiome will be X samples randomly selected from the X samples from the control and treatment resulting in a total of 12 samples.
Soil Monitor, UPLB, Agricultural Systems Institute, Institute of Biological Sciences
The types of testing for soil samples