Vol. 9, Special Issue 4, Part C (2023)

Abstract
Parthenium hysterophorus L. is a plant species which belong to the Asteraceae family. It is commonly known as congress grass. It is an annual herb which easily found in every type of soil. It is mostly found at the roadsides, railway roads, water channels public lawns, forestlands, overgrazed pastures, etc. reduced pasture, and lack of water in soils such as drought condition leads a favourable or ideal situation for their germination and growth. It shows medicinal value namely allopathic, homeopathic as well as traditional. They absorb large amount of nutrients from the soil. So, they are rich in nutrient. IUCN considered this weed plant as one of the 100 most invasive plant species found in world. This invasive plant shows some harmful effect like damaging crops, skin allergy in human and mouth ulcer in animals. The standard methods used for its phytochemical screening and nutrients in it. Qualitative analysis of leaf extract of aqueous Parthenium hysterophorus L. show the presence of protein, alkaloid, steroid, carbohydrates, saponin, chlorophyll, tannin, sterols terpene. The phytoconstituents in parthenium is checked by using its fresh leaves which assessed with different chemical reagents. The nutritional quality of parthenium were utilised for nourishing the other plant after using it as a compost and well mix it within the soil. Then plant absorbs nutrients from this soil which is rich in nutrients like nitrogen, potassium, sulphur, phosphorus mainly and produces better quality of organic manure. It gives better results as compare to the other organic waste. The allelopathy effect was determined by using it as bio- pesticides and spraying their solution on the plant which affected by the pest for 45days.