Enriched soil amendments influenced soil fertility, herbage yield and bioactive principle of medicinal plant (Cassia angustifolia Vahl.) grown in two different soils

A - Papers appearing in refereed journals

B, P. K., Basak, B. B., Patel, V. J., Senapati, N., Ramani, V. P., Gajbhiye, N. A. and Kalola, A. D. 2024. Enriched soil amendments influenced soil fertility, herbage yield and bioactive principle of medicinal plant (Cassia angustifolia Vahl.) grown in two different soils. Heliyon. 10 (3), p. e24874. https://doi.org/10.1016/j.heliyon.2024.e24874

AuthorsB, P. K., Basak, B. B., Patel, V. J., Senapati, N., Ramani, V. P., Gajbhiye, N. A. and Kalola, A. D.
Abstract

High cost of chemical fertilizers and poor nutrient content in conventional organic sources (manure, compost, charcoal etc.) can be addressed through development of enriched organic amendments. However, there is a need to evaluate enriched organic amendments as a potential alternative of chemical fertilizers. Therefore, an effort was made to prepare enriched organic amendments through blending distillation waste of aromatic plant biomass (DWB) with naturally available low-grade rock phosphate (RP) and waste mica (WM). Enrich compost (ENC) was produced from DWB in a natural composting process, blended with mineral powder, whereas biochar fortified mineral (BFM) was prepared by blending biochar, derived from DWB through hydrothermal reaction, with mineral powder. The main aims of the present study were to investigate the impacts of ENC and BFM applications on soil properties, and herbage yield and quality of a medicinal herb Senna (Cassia angustifolia Vahl.). The performances of ENC and BFM at two different rates (2.5 and 5 t ha−1) were compared with the application of conventional farmyard manure (FYM, 5 t ha−1) and chemical fertilizers (CF, NPK 60-40-20 kg ha−1) in two different soils in a pot experiment. Both, ENC and EBC improved soil quality and fertility by increasing soil organic carbon, available nutrients, microbial biomass and enzyme activity. The ENC and BFM increased total herbage yields by 21 and 16.3 % compared to FYM. In both soils, the CF treatment produced the maximum dry herbage yields (32.7–37.4 g pot−1), which however were comparable to ENC (31.9–33.7 g pot−1) and BFM (30.7–35.1 g pot−1) treatments. Bioactive compound (sennoside) production in senna was significantly improved by ENC and BFM compared to CF. The present study indicates that ENC and BFM could not only help to overcome the limitation of conventional FYM, but also have the potentials to substitute costly chemical fertilizers, particularly in medicinal plant cultivation.

KeywordsMedicinal herb; Mineral enrichment; Compost; Biochar; Distillation waste biomass
Year of Publication2024
JournalHeliyon
Journal citation10 (3), p. e24874
Digital Object Identifier (DOI)https://doi.org/10.1016/j.heliyon.2024.e24874
Open accessPublished as ‘gold’ (paid) open access
Publisher's version
Output statusPublished
Publication dates
Online20 Jan 2024
Publication process dates
Accepted16 Jan 2024
PublisherElsevier

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