Management of Excessive Soil H+ Ion Induced Toxicities by Application of Organic Seaweed Amendment Enhances Photosynthesis and Resource Use Efficiencies in Rice (Oryza Sativa)

    January 2024 in “ Environmental Research ”
    Kanagaraj Muthu-Pandian Chanthini, Ganesh-Subbaraja Pavithra, Ponnusamy Murugan, Pauldurai Malarvizhi, Arulsoosairaj Deva-Andrews, Ramakrishnan Ramasubramanian, Narayanan Thulasi-Raman, Guilherme Malafaia, Sengottayan Senthil‐Nathan, Jarosław Proćków
    TLDR Using seaweed-based amendments improves soil quality and boosts rice growth and yield.
    The study evaluates the use of Sargassum wightii seaweed-based biostimulants (BS) as an environmentally friendly solution to manage soil acidification in rice cultivation. BS improved soil pH, structure, and nitrogen availability, enhanced antioxidant enzyme activity, and increased proline accumulation in roots, leading to better root hair growth. It also boosted photosynthetic activities, chlorophyll production by 24.31%, and regulated water use efficiency. Additionally, BS facilitated nitrogen uptake, resulting in a 59% improvement in plant growth and a 52.57% increase in yield. The findings suggest that S. wightii-based amendments can significantly enhance soil quality and rice productivity.
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