A Sustainable Plant Pot Using Rice Husk Biochar for Improve Water Retention
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This study evaluates the performance of charcoal-based plant pots formulated using rice husk biochar as a sustainable alternative to traditional terracotta pots. Three mixtures with varying charcoal–clay ratios were developed and tested under controlled greenhouse conditions to determine their effects on soil pH stability, moisture retention, plant height, and plant weight. An observational research design was employed, and data were collected weekly over a four-week growth period. Results show that Treatment 2 (150 g charcoal, 40% terracotta clay, 50 g natural adhesive) demonstrated the most stable soil pH range (6.0-7.0), the highest moisture retention, and superior plant growth, producing the tallest plants (20 cm) and the greatest weight (4.0 g). Compared to traditional terracotta pots, charcoal-based pots improved water retention, maintained a more balanced soil environment, and enhanced plant development. These findings highlight the potential of biochar-integrated pots as an environmentally friendly and effective option for gardening and agricultural applications.
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