Background: Agroindustrial by-products of cocoa shell and jack fruit peels generally considered as organic waste have almost no economic value and create a big problem in disposal time. A significant amount of biocomposted cocoa shell and jack fruit peel waste is used as organic manure that enhances growth in Vigna unguiculata (L.) Walp. Methods: This research work was conducted in the period of 2019 in the Department of Botany, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu (India). A large amount of cocoa shell and jack fruit peel waste was used for the biocompost preparation using Pleurotus eous, Pleurotus florida spawns and Eudrilus eugeniae. After 90 days, biocompost were taken and sieved used as manure for plant study. Eight different treatments were carried out for the cultivation of Cowpea. Plant samples at various stages (25, 35 and 45 DAS) were analyzed for shoot and root length, number of leaves, flowers, nodules /plant, fresh weight and dry weight of plant. On 65th day yield parameters like number of pods/plant, length of the pod, number of seeds/pod, weight of seeds/pods, pod fresh weight and pod dry weight were analyzed. Result: The experimental results showed that the application T8 (Raw jackfruit peel + 10 g Pleurotus eous + 10 g Pleurotus florida + Eudrilus eugeniae 5 t/ha-1) recorded maximum root (20.63 cm, 32.73 cm and 39.23 cm), shoot length (70.73 cm, 167.50 cm and 175.83 cm), number of leaves/plant (26.46 cm, 33.53 cm and 37.50 cm), number of flowers/plant (12), number of nodules (14, 21.20 and 11.34), fresh weight (10.076 g, 12.146 g and 14.047 g) and dry weight (1.744 g, 1.854 g and 2.827 g) are closely followed by T4 (Raw cocoa shell+ 10 g Pleurotus eous + 10 g Pleurotus florida + Eudrilus eugeniae 5 t/ha-1). A significant increase in the yield parameters such as number of pods/plant (21), length of pod (16.50 cm), number of seeds/pod (20), weight of seed/pod (1.68 g), fresh weight (5.711 g) and dry weight of pod (2.398 g) was observed in treatment T8 as compared to the other treatments (T1, T2, T3, T5, T6 and T7) and control respectively.

Background: The present work was to evaluate biocomposted cocoa shell and jack fruit peel wastes and their effect on the vegetative development and yield parameters of Vigna unguiculata subsp. sesquipedalis L. Var. NS-620 (Cowpea). Methods: The experiments were conducted in the Department of Botany, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, during 2019.The experiments consists of various treatments of biocompost. Different growth stages of the plant sample were analysed for root length, shoot length, number of leaves, number of nodules, number of flowers, plant fresh weight and dry weight on 25, 50 and 75 DAS. The yield parameters of cowpea such as number of pods per plant, length of pod, number of seeds per pod, weight of seeds per pods, pod fresh and dry weight were analysed on 90 DAS. Result: The experimental result showed that T8 (Raw Jack fruit peel+10 g Pleurotus eous+10 g Pleurotus florida+Eudrilus eugeniae 5 t/ha-1) and T4 (Raw Cocoa shell+10 g Pleurotus eous+10 g Pleurotus florida+Eudrilus eugeniae 5 t/ha-1) treatment significantly increased the vegetative growth in root length, shoot length, number of leaves/plant, number of nodules, fresh weight and dry weight on 25 to 75 DAS and number of flowers on 45 DAS. Maximum increase in the yield parameters was observed in number of pods/plant, length of pod, number of seeds/pod, weight of seed/pod, fresh weight and dry weight of pod in Vigna unguiculata subsp. sesquipedalis L. as compared to other treatments and control. The main objective of the study was to develop high yielding and healthy vegetable crops with the help of biocomposted agroindustrial waste without damaging the environment.