eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2024-07-01 21 2 645 654 10.13005/bbra/3253 51494 article Tanvi Taneja 1 Indu Sharma 2 Bikram Jit Singh 3 Amarjeet Singh 4 Mukesh Kumar 1 Raj Singh 1 Department of Bio-Sciences and Technology, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, Haryana, India Department of Biotechnology, NIMS Institute of Allied Medical Science and Technology, NIMS University Rajasthan, Jaipur, Rajasthan, India Department of Mechanical Engineering, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala (Haryana), India Department of Agriculture Engineering, SCRIET, CCS University, Meerut, India Composting is the natural process of transforming organic wastes, such as leaves and food scraps, into fertile manure that can enrich the soil with humus, helpful bacteria, and critical plant nutrients, thus enhancing soil fertility and structure. India's soil today is low in organic matter and nutrients, particularly micronutrients. Compost includes 2% nitrogen, 0.5–1.0% phosphorus, around 2% potassium, and trace amounts of all critical micronutrients. Biodegradable weeds, including Parthenium hysterophorus, Solanum nigrum, Calotropis procera, and Trianthema portulacastrum, were degraded using the Bangalore pit compost method.  The fresh vegetation of Parthenium, Solanum, Calotropis and Trianthema for making compost were collected from nearby localities of Mullana village from November, 2022 to April 2023. As a result, applying compost to soil increases organic matter and enhances soil fertility, restoring minerals and organic matter lost during harvesting. It also enhances the chemical, physical, and biological qualities of the soil, increasing crop output. Compost increases the soil's water holding capacity, which reduces crop water requirements and irrigation frequency. The nitrogen, phosphorus, potassium, and carbon-to-nitrogen ratios of the compost were measured every 20 days for up to 100 days. The results demonstrate that compost has a high calcium, nitrogen, phosphorus and potassium content but a lower carbon and nitrogen ratio. https://www.biotech-asia.org/vol21no2/composting-as-a-sustainable-option-for-converting-undesirable-weeds-like-parthenium-hysterophorus-solanum-nigrum-calotropis-procera-and-trianthema-portulacastrum-into-organic-manure/ Biodegradable Weeds; Compost; Humus; Micronutrient; NPK pit