Effective Utilization of Stabilized Spent Wash Bio-Compost for Tomato Crop and Comparison of its Yield with Commercial Composts
2022
A. S. Byakodi | B. T. Suresh Babu
India is an agro-based country and in the year 2020, about 1082 lakh hectares of agricultural land have been planted, in turn, consuming 3161 lakh tonnes of fertilizer annually. However, excessive fertilizer usage has a negative impact on the soil quality and is evident by the fact that the crop response ratio has decreased from 12.1 in the 1960s to 5.0 in the 2010s. Hence, organic compost can be used as an alternative to fertilizer, reducing its negative impact on soil quality. The present study is a part of a larger investigation and its scope is confined to the utilization of bio-composts for the growth of tomato crops. Additionally, a comparison of these bio-composts was carried out with commercial composts through assessment of yield and number of fruits. Seeds were sown on prepared land, germination was observed on the 7th day, and saplings were produced on the 30th day. The dosage of each compost was fixed at 60ml per plant and was applied on the 31st and 51st days of the study period. Commercial composts produced yields of 673 ± 32.01, 830 ± 32.19 and 1560 ± 77.62 g respectively, with 54 ± 4.16, 81 ± 11.50, and 104 ± 13.50 fruits. All the bio-composts outperformed control and commercial composts in terms of yield. With 140 ± 11.50 fruits, BC5 produced a maximum yield of 2938 ± 93.72 g, which is 723 % higher than the control. Hence, it is concluded that the use of bio-compost is more effective than commercial composts and provides a much higher yield. Further studies need to be conducted to evaluate the quality of yield obtained by various bioassay tests.
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