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The study and comparison of soil quality and abandoned shrimp pond soil used for oil palm cultivation in HatSamran District, Trang Province.

Organization(s):Wichienmatu
Country:Thailand
Student(s):Ms. Chanidapa chupheng Ms. Juthamart Noonueng Ms. Nattanicha Somjing
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Educator(s):Thamonwan Bunchuay
Contributors:Ms. Orapin Noonum MS.Naeriya Tonkrongchan
Report Type(s):International Virtual Science Symposium Report
Protocols:Soil Fertility, Soil Moisture - Gravimetric, Soil pH, Soil Temperature
Presentation Poster: View Document
Language(s):English
Date Submitted:03/05/2025
How it works 1. Preparatory stage : Set up a study issue. Select the topic you want to study. ,Research Gather knowledge and theories related to the work. ,Determine the purpose of the study. ,Random sampling points are set in the area of the study area. 2. Procedure : Make operational planning. ,Survey the area to be carried out. 3.Soil quality measurement is carried out according to the GLOBE methodology as follows: The study route was divided into two points: soil where oil palm is grown and soil in abandoned shrimp fields where oil palm is grown. In the area of Haad Samran District, Trang Province 3.1 Soil pH Measurement with pH Meter : Using a pilot wood, the soil is drilled into it.14 By measuring the soil at several points. ,Bring pH meter Insert into the hole of the pilot stick., Record Results 3.2 Soil Temperature Measurement : Calibrate the thermometer. To ensure accurate readings. ,Determine the point where the soil temperature will be measured.,Use ground pilot steel. ,Insert the soil thermometer in the pilot slot . ,Wait 2 minutes. Temperature readings 1st time, 2 bruises, recorded results. 3.3Measuring soil color using a soil color comparison book. ,Take a grain of soil from each layer of soil and observe whether the soil is moist, dry, or wet. If dryness, make slices. ,The bead is divided into two parts, standing so that the sunlight shines through the shoulder to the soil color calibration book and soil sample that is being measured. ,Record the clay color value. 3.4Soil Adhesion Measurement :Remove the soil grains from the topsoil. If the soil is dry, moisten the soil layer using a spray of water, and then pull out the soil grains to observe the soil adhesion (repeat this for all layers of soil). ,Hold the soil between your thumb and index finger and gently squeeze the soil until it breaks. ,Record the characteristics of one of the samples. 3.5Measuring soil fertility N P K Test Kit :Soil fertility measurement takes dry and sifted soil. 20 g. , Tested in N P K Measurement Test Kit. . ,Record Results 3.6 Measuring soil moisture using a moisture meter :Use a pilot steel to drill down to the designated measurement point. ,Put the soil moisture meter in, wait 2 minutes, then record the result. 3.7Soil salinity measurement using a Salinity Meter : Take soil from all designated measurement point areas and put it in the beaker. ,Add water to the beaker in a 1:1 ratio. , Take a Salinity Meter to dip it to measure salinity. ,Wait for the value to freeze and save the result. Send information GLOBE Data Entry.
A Study and Comparison of Soil Quality and Abandoned Shrimp Pond Soil Used for Oil Palm Cultivation in Hat Samran District, Trang Province, During December 2024 - January 2025 The objective of this study is to examine and compare the quality of normal soil and abandoned shrimp pond soil used for oil palm cultivation in Hat Samran District, Trang Province. Soil quality measurements were taken once a month, including pH, soil color, soil adhesion, soil fertility (measuring N, P, and K values), soil temperature, moisture content, and salinity. The study found that the soil in the abandoned shrimp ponds exhibited variability in nutrient content and salinity. The soil in the abandoned shrimp ponds had higher moisture content compared to normal soil. In contrast, normal soil was of better quality than the abandoned shrimp pond soil, with a pH ranging from 5.37 to 6.37, which is mildly acidic to neutral. This ph range is suitable for oil palm cultivation and aligns with research from the Surat Thani Oil Palm Research Center in 1972, that the ideal pH range for oil palm cultivation is between 5.0 and 6.0. Soil fertility elements include nitrogen (N), which supports leaf and stem growth, enhances greenness, and facilitates photosynthesis; phosphorus (P), to help in root development and overall plant growth, contributing to seed and flower production; and potassium (K), It helps regulate water usage in plants, supports photosynthesis, and contributes to sugar production in plants.


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