Suci (2024). Effect of the combination tanks biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More and chicken manure on availability of nutrients and yields of Purple Eggplant. International Journal of Recycling of Organic Waste in Agriculture. https://doi.org/10.57647/ijrowa-vjsm-0w96

Alluvial soil presents unique challenges for agriculture, including low nutrient levels (nitrogen, phosphorus, potassium) and high aluminum and iron content. This study explores a solution using biochar derived from palm oil tank waste and chicken manure to enhance soil fertility and boost eggplant yield.

Biochar was produced by pyrolyzing tank waste and chicken manure at 400°C for four hours. The biochar was sieved and analyzed for key properties, including pHpH is a measure of how acidic or alkaline a substance is. A pH of 7 is neutral, while lower pH values indicate acidity and higher values indicate alkalinity. Biochars are normally alkaline and can influence soil pH, often increasing it, which can be beneficial More, organic carbon, and nutrient content. A mixture of tank biochar, chicken manure biochar, and NPK fertilizer (at 75% of the recommended dose) was tested for its effects on soil quality and purple eggplant production.

The results were promising. The combination of biochar and chicken manure significantly improved soil nutrient availability—nitrogen increased by 73.68%, phosphorus by 35.36%, and potassium by 92.78% compared to untreated soil. Eggplant yields also rose markedly, with first harvest yields reaching 90% higher than the control group and second harvests achieving 16.50% higher yields.

This approach not only improved soil pH and organic content but also demonstrated the potential for biochar to serve as an effective organic fertilizer. The porous, sturdy structure of palm oil tank biochar, when enriched with chicken manure and NPK fertilizer, offers a sustainable solution to enhance alluvial soil fertility and promote higher crop yields, making it a valuable tool for sustainable agriculture.