Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.

Abstract Balanced plant nutrition and optimal micro-climate are critical for achieving higher production sustainably. Substituting mineral fertilizers with organic amendments under water-conserving strategies like mulch can enhance the quality and yield and improve soil health. Therefore, a two-year...

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Main Authors: Diksha Dhiman, Sakshi Vishvamitera, Sidharth Baghla, Sanatsujat Singh, Dinesh Kumar, Ashok Kumar, Ramesh Chauhan
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-83824-3
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author Diksha Dhiman
Sakshi Vishvamitera
Sidharth Baghla
Sanatsujat Singh
Dinesh Kumar
Ashok Kumar
Ramesh Chauhan
author_facet Diksha Dhiman
Sakshi Vishvamitera
Sidharth Baghla
Sanatsujat Singh
Dinesh Kumar
Ashok Kumar
Ramesh Chauhan
author_sort Diksha Dhiman
collection DOAJ
description Abstract Balanced plant nutrition and optimal micro-climate are critical for achieving higher production sustainably. Substituting mineral fertilizers with organic amendments under water-conserving strategies like mulch can enhance the quality and yield and improve soil health. Therefore, a two-year study was conducted to examine the synergistic effects of mulch and reducing inorganic fertilizers and partially substituting organic amendments on essential oil (EO) yield and its composition, and soil properties in Salvia sclarea, an industrially important crop. Two mulching practices (M1: without mulch; M2: with mulch) and five nitrogen (N) management practices [N1: control; N2: 100% recommended dose of N i.e.,120 kg/ha; N3: 25% N through chemical fertilizer (CF) + 75% N through farm yard manure (FYM); N4: 50% N through CF + 50% N through FYM, N5: 75% N through CF + 25% N through FYM] were taken as experimental treatments, with a total of ten treatment combinations in a split-plot design during 2021-22 and 2022-23. The results showed that applying mulch increased the plant height, leaf area index (LAI), and EO yield. Among N management practices, N2 outperformed for all the morpho-physiological and yield parameters studied except stem diameter and produced at par outcomes with N5 in case of flower spike per plant, LAI, chlorophyll a and b, flower spike yield, EO content and yield. Optimum soil temperature and moisture under mulching modulate the nutrient concentration; similarly, N being necessary for photosynthesis, translocation of nutrients, enzymatic activity, and vegetative and reproductive growth, synergistically enhanced the EO yield and altered the composition. The heat map displayed an inconsistent pattern of the treatment combination’s impact on EO components. In soil properties, treatment N5 recorded highest value of available N at 0–0.15 m soil depth; however, at 0.15–0.30 m, N2 registered a higher value and produced at par results with N5. In case of potassium and soil organic carbon, T3 recorded higher value, followed by T4 and T5 at 0–0.15 m. Considering the soil health and without compromising the EO yield much, the present study suggested replacing 25% of recommended chemical N with organic manures under mulch for sustainable and economical production of S. sclarea.
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spelling doaj-art-41d767a8c83840daa6a1c6ec666d043b2025-01-05T12:28:30ZengNature PortfolioScientific Reports2045-23222024-12-0114111410.1038/s41598-024-83824-3Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.Diksha Dhiman0Sakshi Vishvamitera1Sidharth Baghla2Sanatsujat Singh3Dinesh Kumar4Ashok Kumar5Ramesh Chauhan6Agrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyAgrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyAgrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyAgrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyChemical Technology Division, CSIR-Institute of Himalayan Bioresource TechnologyAgrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyAgrotechnology Division, Council of Scientific and Industrial Research - Institute of Himalayan Bioresource TechnologyAbstract Balanced plant nutrition and optimal micro-climate are critical for achieving higher production sustainably. Substituting mineral fertilizers with organic amendments under water-conserving strategies like mulch can enhance the quality and yield and improve soil health. Therefore, a two-year study was conducted to examine the synergistic effects of mulch and reducing inorganic fertilizers and partially substituting organic amendments on essential oil (EO) yield and its composition, and soil properties in Salvia sclarea, an industrially important crop. Two mulching practices (M1: without mulch; M2: with mulch) and five nitrogen (N) management practices [N1: control; N2: 100% recommended dose of N i.e.,120 kg/ha; N3: 25% N through chemical fertilizer (CF) + 75% N through farm yard manure (FYM); N4: 50% N through CF + 50% N through FYM, N5: 75% N through CF + 25% N through FYM] were taken as experimental treatments, with a total of ten treatment combinations in a split-plot design during 2021-22 and 2022-23. The results showed that applying mulch increased the plant height, leaf area index (LAI), and EO yield. Among N management practices, N2 outperformed for all the morpho-physiological and yield parameters studied except stem diameter and produced at par outcomes with N5 in case of flower spike per plant, LAI, chlorophyll a and b, flower spike yield, EO content and yield. Optimum soil temperature and moisture under mulching modulate the nutrient concentration; similarly, N being necessary for photosynthesis, translocation of nutrients, enzymatic activity, and vegetative and reproductive growth, synergistically enhanced the EO yield and altered the composition. The heat map displayed an inconsistent pattern of the treatment combination’s impact on EO components. In soil properties, treatment N5 recorded highest value of available N at 0–0.15 m soil depth; however, at 0.15–0.30 m, N2 registered a higher value and produced at par results with N5. In case of potassium and soil organic carbon, T3 recorded higher value, followed by T4 and T5 at 0–0.15 m. Considering the soil health and without compromising the EO yield much, the present study suggested replacing 25% of recommended chemical N with organic manures under mulch for sustainable and economical production of S. sclarea.https://doi.org/10.1038/s41598-024-83824-3MulchNitrogen managementSalvia sclareaSpike yieldSoil properties
spellingShingle Diksha Dhiman
Sakshi Vishvamitera
Sidharth Baghla
Sanatsujat Singh
Dinesh Kumar
Ashok Kumar
Ramesh Chauhan
Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
Scientific Reports
Mulch
Nitrogen management
Salvia sclarea
Spike yield
Soil properties
title Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
title_full Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
title_fullStr Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
title_full_unstemmed Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
title_short Synergistic effect of mulch and nitrogen management on growth and essential oil yield of Salvia sclarea L.
title_sort synergistic effect of mulch and nitrogen management on growth and essential oil yield of salvia sclarea l
topic Mulch
Nitrogen management
Salvia sclarea
Spike yield
Soil properties
url https://doi.org/10.1038/s41598-024-83824-3
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