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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: View Document
Language(s):English
Date Submitted:2026-01-28
Study sites 1–3 and 4–6 were established. Growth was measured by determining plant height and counting the number of leaves. Soil fertility was assessed using N P and K. values.       Measure soil moisture and pH using a soil meter. Add soil to the same level, water regularly every day, and check soil structure with the CU.   Smartlens.
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



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