Student Research Reports
Effects of Terminalia catappa and Hopea odorata Leaves on Soil Quality and Petraeovitex wolfei Growth
Organization(s):Wichienmatu
Country:Thailand
Student(s):Mr. Kritipong sukkai
Ms. Pimchanok Chitkaew
Ms. Veerawan Rampoon
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Mrs. Khwanjai Kanchanasrimek
Ms. Naeriya Tonkrongchan
Ms. Chularat Singkaew
Report Type(s):Virtual Science Symposium Report
Protocols:Soil Fertility, Soil Moisture - SMAP Block Pattern, Soil pH
Presentation Poster:
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Language(s):English
Date Submitted:2026-01-28
Soil Quality Study on Terminalia catappa Fertilizer and Hopea odorata Leaf Fertilizer Affecting the
Growth of Petraeovitex wolfei ,the objectives of the study were to study the soil quality that affects the
growth of golden garland trees in the area where Terminalia catappa fertilizer and Hopea odorata leaf
fertilizer were added in Wichian Matu School, 2.) to study the growth of Petraeovitex wolfei in the
fertilized areas of Terminalia catappa leaves and Hopea odorata leaves in Wichian Matu School and 3.) to
study the relationship between the growth of the Petraeovitex wolfei tree and the fertilizer area of
Terminalia catappa leaves and the fertilizer of the leaf in Wichian Matu School. Soil quality and the
growth of Petraeovitex wolfei was found that the acidity of the base in the soil Soil moisture, soil
nutrients, height of Petraeovitex wolfei Number of leaves of the Petraeovitex wolfei at Wichienmatu
School that there is a difference. It was found that the soil in the pots using Terminalia catappa fertilizer
has an acidity base value in the soil. Soil moisture, soil nutrients, height of Petraeovitex wolfei The
number of leaves of the Petraeovitex wolfei is more than the soil in the pot that uses the leaf fertilizer.
Keywords
Soil quality Terminalia catappa fertilizer, Hopea odorata leaf fertilizer