Properties of vermichar derived from agricultural waste and its potential supplement for lowland rice
Paper Details
Properties of vermichar derived from agricultural waste and its potential supplement for lowland rice
Abstract
This study evaluates the nutrient composition of vermichar and its impact on soil properties and rice crop productivity. Vermichar, a biochar produced from organic waste and vermicompost, demonstrates a nutrient profile with 11.86% organic matter, 0.59% nitrogen, 4.41% phosphorus, 0.45% potassium, and a combined NPK value of 5.33%, suggesting its potential as an effective soil amendment. The application of vermichar at 10 bags per hectare significantly influenced soil pH, increasing it to 7.69 from the control’s 6.15, indicating its strong alkalinizing effect. Additionally, vermichar application enhanced soil organic matter, nitrogen, phosphorus, and potassium levels compared to the control, though less effectively than NPK fertilizers. The study also examined the effects on rice growth and yield parameters. Vermichar application improved plant height, number of tillers, panicle length, and grain filling, but these benefits were less pronounced compared to combined treatments of NPK fertilizers and vermichar. The highest plant height, tiller number, and panicle length were observed with treatments combining NPK and vermichar, underscoring the synergistic effects of integrated nutrient management. These findings highlight the potential of vermichar to improve soil health and crop productivity, particularly when used alongside traditional fertilizers. Vermichar represents a sustainable agricultural practice, enhancing soil fertility and promoting better crop yields. Further research is recommended to optimize application rates and combinations for various crops and soil types.
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Rommel U. Sacramento (2024), Properties of vermichar derived from agricultural waste and its potential supplement for lowland rice; IJAAR, V24, N6, June, P1-14
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