Browsing by Author "Truptimayee Suna"

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Assessment of spatiotemporal variability of rainfall and surface wind speed over the eastern coastal agro-ecological zones of India using advanced trend detection approaches
(Springer, 2023) Pradosh Kumar Paramaguru; Kanhu Charan Panda; Truptimayee Suna; Jitendra Rajput
Rainfall and near-surface wind speed are two crucial parameters affecting climate change-induced extreme events. It is essential to perform a trend analysis of these parameters to assess the spatiotemporal variation of these events. Thus, the current study aimed to investigate seasonal rainfall and near-surface wind speed variability over six eastern coastal agro-ecological zones (AEZs) of India (AEZs 3, 7, 8, 11, 12, and 18) over 101 years (1920–2020). Further, the Mann–Kendall (MK), modified Mann–Kendall (MMK), bootstrapped Mann–Kendall (BMK), innovative trend analysis (ITA), and detrended fluctuation analysis (DFA) tests were employed in this study to analyse the trends of rainfall and near-surface wind speed. An increasing trend was noticed in the annual rainfall in the southern AEZs and the zones adjacent to the coastline. In the pre-monsoon season, the AEZs 12 and 18 showed an increasing rainfall trend, whereas the remaining AEZs demonstrated a decreasing trend. Except for AEZ 7, all zones experienced a negative rainfall trend in the post-monsoon season. The results revealed that all AEZs had negative near-surface wind speed trends, which could be attributed to climate change. ITA outperformed the rest of the trend analysis techniques in detecting hidden trends. The DFA test revealed that the trend pattern would continue in the future for 56% of the datasets. This study will assist researchers and policymakers in developing a sustainable water resources management plan by considering the trend patterns of meteorological variables across the agro-ecological regions. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.
Energy Use and Economic Evaluation Under Conservation and Organic Farming
(Springer Nature, 2023) Anandkumar Naorem; M. Jaison; P. Helena Chanu; Abhishek Patel; Truptimayee Suna; Shiva Kumar Udayana; Somasundaram Jayaraman
Organic farming is one of the approaches that can contribute to food and nutritional safety in sustainable agriculture. Organic farming has been reported to be more efficient and effective in lessening of greenhouse gases emissions, soil and water pollution, and also threat of human health as compared to conventional farming production system. Hence the farm level analysis of conventional and organic farming is most required to prompt the farmers and policymakers to prefer the most economical viable farming practices. This chapter aims at upgrading the current state of knowledge on organic-conventional debate and identifying the most efficient system in energy consumption and economic aspect. It is reasonable to assume that organic agriculture uses less energy than conventional methods because it is more comprehensive and thus more sustainable. However, a growing body of literature has been presenting some differences in this regard, providing some illumination of debates. Also, it’s not a new phenomenon to have discussions about the financial implications of buying organic food. Therefore, this chapter compares and contrasts conventional and organic systems in terms of energy use and cost. The purpose of this chapter is to improve our understanding of the organic vs. conventional argument and to determine which system is more cost-effective and energy-efficient. © Springer Nature Singapore Pte Ltd. 2023.
Unravelling the Significance of ACC-Deaminase in Sustainable Arid Soil Management
(Nova Science Publishers, Inc., 2022) Anandkumar Naorem; Abhishek Patel; Shiva Kumar Udayana; M. Ashajyoti; P. Helena; Truptimayee Suna
Drought stress is one of the most key environmental stresses that limit crop productivity, especially in dryland soils. The stress caused by low soil water availability could lead to huge economic losses. Such issues demand a sustainable approach that could either increase the tolerance of the crops to low water stress or increase water availability, which is of high concern during the era of climate change. Mining the beneficial microbes from soils and plants for their multifaceted activities could stimulate crop growth and enhance drought tolerance. The drought stress often results in an increased accumulation of ethylene in the crop, reducing the crop growth and yield. Soil dwelling beneficial microbes could play an imperative role in this regard. These microbes produce an enzyme, ACC-deaminase (1-aminocyclopropane-1-carboxylate deaminase) that are produced in response to the increased load of ethylene in the plant. The main reason for releasing this remarkable enzyme under a stressed environment is to break the ACC (an immediate precursor of ethylene) to ammonia and α-ketobutyrate, which are further utilised as nitrogen sources by the microbes. The conversion of ACC to these by-products lowers the ethylene levels in the plants and reduces drought stress. Therefore, understanding and unravelling the importance of ACC-deaminase producing microbes will benefit crop production in arid and semi-arid regions. © 2022 by Nova Science Publishers, Inc.