​Impact of Paddy and Coffee Husk as the Bio Compost and its Effect on the Growth and Yield of Black Gram [Vigna mungo (L.) Hepper]

Abstract

The recent developments of urban areas change the climate in the ecosystem and decreasing the arable land became the pressurized problems for all the producers of the present world. Moreover organic agriculture optimizes the application of biocomposts to improve soil fertility and productivity while minimizing the environmental implications and also it is necessary for sustainable agriculture. The study was conducted at St Josephs College for Women (A), Visakhapatnam andhra Pradesh. Agro-industrial wastes of Paddy and Coffee husk were collected and were used for the biocomposting process using Pleurotus eous, P.florida, Trichoderma asperelloides and Eisenia fetida. The vermicompost was used for the growth of black gram with 6 treatments. The plant was analyzed for root length, shoot length, number of leaves, number of nodules, fresh weight and dry weight at different stages (20,40 and 60 DAS). On 90th day the yield parameters like number of pods/plant, number of seeds/plant, length of the pod, weight of the seeds/pod, fresh weight and dry weight of the pod were analyzed. The experimental study results revealed that the treatment 6 (Pre decomposed Coffee husk, Consortium of Pleurotus eous, P.florida, Trichoderma asperelloides and Eisenia fetida) has shown a significant increase in root length (7.9,12.2 and 16.5 cm), shoot length (11.8, 25.8 and 30.7 cm), number of leaves(19.0,37.0 and 41.0) number of nodules(10.0,30.0 and 17.0), fresh weight (2.77,7.37 and 15.39 g) and dry weight (0.52,3.67 and 5.73 g) of the plant on 20 DAS, 40 DAS and 60 DAS and the yield parameters also showed the increase in number of pods/plant (39), number of seeds/plant (5), length of the pod (5.6 cm), weight of the seeds /pod (2.384 g), fresh weight of the pod (2.95 g) and dry weight (1.195 g) on 90th Day of black gram when in comparison with the control. It is to conclude that treatment 6 can be a better manure to enhance the growth and yield of plants and also it can be a great help for the farmers.