A Study on Positive Impact of Allelopathic Plant Leaf Ashes on Soil Fertility and its Characterization

Abstract

A method was developed to synthesize an eco-friendly alkaline solution from acidic leaves having an allelopathic effect. The mild alkaline solutionprepared showed significant potential as a sustainable fertilizer for crops due to its rich nutrient composition. Ashes derived from allelopathicplants act as an excellent source of essential plant nutrients and contain elements that enhance soil conditions, thereby promoting better plantgrowth and development. Further, the study was carried out to analyze the presence of key elements, calcium, magnesium, potassium, boron,etc., by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and energy-dispersive X-ray spectroscopy (EDX).The study also examined how the application of allelopathic plant leaf ashes influenced soil pH from neutral (7.48) to highly alkaline (8.60)and salinity variations during the growth of various plant species. According to our findings, incorporating allelopathic plant leaf ashes greatlypromotes plant growth because of the combined effects of elevated pH and nutrient levels, which are analyzed by soil sample analysis.