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Browsing by Author "Chetan Kumar Jangir"

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    PublicationBook Chapter
    Conventional, genomics, and post-genomics era of pulses breeding: Current status and future prospects
    (Elsevier, 2022) Seema Sheoran; Thribhuvan R; Manisha Saini; Vinita Ramtekey; Sandeep Kumar; Ram Swaroop Meena; Arnab Banerjee; Chetan Kumar Jangir
    Among food grains, pulses are the main sources of proteins, minerals and vitamins for a large section of the population. They play an important role in global food security through providing nutritious food, animal feed, source of income and various employment opportunities. Pulses are mainly cultivated by small and marginal farmers with poor resources and minimal inputs under rainfed conditions. In addition, through traditional breeding, just a few pulses genotypes have been recurrently used as parents in breeding programs for the production of new cultivars, hence, they have narrowed down their genetic base and not gained full potential of production. Therefore, to increase the speed of genetic gain in pulses, novel genomics and post-genomics tools have been extensively utilised by the plant breeders in integration with the new breeding strategies like marker-assisted selection (MAS), marker-assisted recurrent selection (MARS), speed breeding, genome editing tools, and high-throughput phenotyping around the world. © 2022 Elsevier Inc. All rights reserved.
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    PublicationReview
    Current Status and Potential of Biofortification to Enhance Crop Nutritional Quality: An Overview
    (MDPI, 2022) Seema Sheoran; Sandeep Kumar; Vinita Ramtekey; Priyajoy Kar; Ram Swaroop Meena; Chetan Kumar Jangir
    Around 2 billion people are suffering from chronic malnutrition or “hidden hunger”, which is the result of many diseases and disorders, including cognitive degeneration, stunting growth, and mortality. Thus, biofortification of staple food crops enriched with micronutrients is a more sustainable option for providing nutritional supplements and managing malnutrition in a society. Since 2001, when the concept of biofortification came to light, different research activities have been carried out, like the development of target populations, breeding or genetic engineering, and the release of biofortified cultivars, in addition to conducting nutritional efficacy trials and delivery plan development. Although, being a cost-effective intervention, it still faces many challenges, like easy accessibility of biofortified cultivars, stakeholders’ acceptance, and the availability of biofortified germplasm in the public domain, which varies from region to region. Hence, this review is focused on the recent potential, efforts made to crop biofortification, impacts analysis on human health, cost-effectiveness, and future perspectives to further strengthen biofortification programs. Through regular interventions of sustainable techniques and methodologies, biofortification holds huge potential to solve the malnutrition problem through regular interventions of nutrient-enriched staple food options for billions of people globally. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
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    PublicationArticle
    Designing a Diversified Indian Mustard Production System for Energy-Carbon-Cum-Heat Use Efficiency and Sowing Dates Assessment
    (John Wiley and Sons Inc, 2025) S. Dasaratha Kumar; Ram Swaroop Meena; Sandeep Naresh Kumar; Gourisankar Pradhan; Chetan Kumar Jangir; Shambhunath Ghosh; Himani Punia; Parvender Sheoran; Ramawatar Narayan Meena; Md Afjal Ahmad; Suneel Kumar Goyal; Nazih Y. Rebouh
    The rice (Oryza sativa L.)–wheat (Triticum aestivum L.) cropping system faces major challenges such as stagnant yields, high input and energy demands, and increasing soil and air pollution. Indian mustard (Brassica juncea L.) is a promising crop for diversification within rice-based ecosystems. The objective of this study was to evaluate the effects of different sowing dates and nutrient sources on energy budgeting in diversified Indian mustard and to assess the impact of these nutrient sources on heat-cum-carbon efficiency. The experiment was conducted using a split-plot design (SPD) with three sowing dates—November 17, November 27, and December 07—in the main plots, and eight nutrient sources in the subplots, where the recommended dose of fertilizer was 100 N:50 P2O5:50 K2O:40 S kg ha−1. The results, based on pooled data, indicated that among the sowing dates, November 17 recorded the highest values for several key metrics. These include energy use efficiency (EUE: 3.46, 5.12, and 12.16), energy production (EP: 0.152, 0.41, and 0.56 kg MJ−1), net energy (NE: 29,712, 50,483, and 92,558 MJ ha−1), energy profitability (EPr: 2.46, 2.88, and 6.34), human energy profitability (HEP: 364.82, 412.60, and 777.42), energy output efficiency (EOE: 364.69, 412.49, and 777.18 MJ d−1), carbon output (CO: 815, 2215, and 3030 kg CE ha−1), carbon efficiency (CE: 2.07, 5.59, and 7.66), and carbon sustainability index (CSI: 1.07, 4.59, and 6.66) for seed, stover, and biological yield, respectively, compared to the crops sown on November 27 and December 07. The study also revealed significant increases in heat use efficiency (HUE) on dry matter at 45 and 90 days after sowing (DAS) and on seed, stover, and biological yield (13.3, 8.46, 1.52, 4.16, and 5.69 kg ha−1°C days, respectively). In the subplots, the highest EUE (3.92, 5.10, and 12.1), EP (0.172, 0.408, and 0.58 kg ha−1), and EPr (2.92, 2.86, and 6.78) for seed, stover, and biological yield were observed in the control treatment, outperforming the other nutrient sources on a pooled basis. The highest SE production (8.59, 3.48, and 2.47 MJ kg−1) for seed, stover, and biological yield was recorded with the application of 100% of the recommended dose of fertilizer (RDF) combined with Azotobacter and phosphorus-solubilizing bacteria (PSB). Furthermore, the highest NE (35,427, 52,203, and 102,370 MJ ha−1), HEP (434.02, 438.67, and 872.68), EOE (448.37, 452.68, and 901.04 MJ d−1), CO (972, 2359, and 3331 kg CE ha−1), CE (2.48, 6.01, and 8.48), CSI (1.48, 5.01, and 7.48), and HUE (1.67, 4.12, and 5.81 kg ha−1°C days) for seed, stover, and biological yield were observed with the application of 75% RDF + 25% nitrogen from pressmud, combined with Azotobacter and PSB. This study provides a novel framework for optimizing sowing dates and nutrient sources that can lead to the development of an energy-efficient, heat-cum-carbon-efficient, and eco-friendly production system. Its findings offer scalable solutions for enhancing sustainability and reducing environmental footprints in rice-based cropping systems. © 2025 The Author(s). GCB Bioenergy Published by John Wiley & Sons Ltd.
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    PublicationArticle
    Efficient nutrient management for enhancing crop productivity, quality and nutrient dynamics in lentil (Lens culinaris Medik.) in the semi-arid region of northern India
    (Public Library of Science, 2023) Sandeep Kumar; Surender Kumar Sharma; Anil Kumar Dhaka; Sandeep Bedwal; Seema Sheoran; Ram Swaroop Meena; Chetan Kumar Jangir; Dinesh Kumar; Rakesh Kumar; Ram Dhan Jat; Ajit Kumar Meena; Ahmed Gaber; Akbar Hossain
    Various faulty farming practices and low-performance cultivars selection are reducing crop yields, factor productivity, and soil fertility. Therefore, there is an urgent need to achieve better nutrient dynamics and sustainable production by selecting more nutrient-responsive cultivars using efficient nutrient management. The present experiment aimed to enhance crop productivity, seed quality, nutrient efficiency, and soil nutrient dynamics through efficient nutrient management under different lentil cultivars. The experiment was laid out in a split-plot design, assigning three cultivars (viz. Sapna, Garima, and HM-1) in the main plots and ten nutrient management practices in the sub-plots, replicating them thrice. Results revealed that cultivar HM-1 recorded significantly higher seed yield (1.59–1.61 Mg ha-1) and the uptake of N (67.2–67.6 kg ha-1), P (6.8–7.0 kg ha-1), K (13.8–13.9 kg ha-1), Zn (60.4–61.1 g ha-1), and Fe (162.5–165.2 g ha-1) in seed compared to Sapna and Garima. Also, the cultivar HM-1 was more efficient in terms of partial factor productivity for NPK (PFP; 24.27–24.59 kg kg-1), partial nutrient balance (PNB; 2.09–2.13 kg kg-1) and internal utilisation efficiency (IUE; 11.64–11.85 kg kg-1). The study showed that the lentil cultivar HM-1 could be successfully grown by substituting 50% RDN with organic manures, i.e., vermicompost, without compromising crop productivity and soil fertility, thereby sustaining soil-human-environment health. © 2023 Kumar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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    PublicationReview
    Impact of agrochemicals on soil microbiota and management: A review
    (MDPI AG, 2020) Ram Swaroop Meena; Sandeep Kumar; Rahul Datta; Rattan Lal; Vinod Vijayakumar; Martin Brtnicky; Mahaveer Prasad Sharma; Gulab Singh Yadav; Manoj Kumar Jhariya; Chetan Kumar Jangir; Shamina Imran Pathan; Tereza Dokulilova; Vaclav Pecina; Theodore Danso Marfo
    The World Health Organization (WHO) states that in developing nations, there are three million cases of agrochemical poisoning. The prolonged intensive and indiscriminate use of agrochemicals adversely affected the soil biodiversity, agricultural sustainability, and food safety, bringing in long-term harmful effects on nutritional security, human and animal health. Most of the agrochemicals negatively affect soil microbial functions and biochemical processes. The alteration in diversity and composition of the beneficial microbial community can be unfavorable to plant growth and development either by reducing nutrient availability or by increasing disease incidence. Currently, there is a need for qualitative, innovative, and demand-driven research in soil science, especially in developing countries for facilitating of high-quality eco-friendly research by creating a conducive and trustworthy work atmosphere, thereby rewarding productivity andmerits. Hence, we reviewed (1) the impact of various agrochemicals on the soil microbial diversity and environment; (2) the importance of smallholder farmers for sustainable crop protection and enhancement solutions, and (3) management strategies that serve the scientific community, policymakers, and land managers in integrating soil enhancement and sustainability practices in smallholder farming households. The current review provides an improved understanding of agricultural soilmanagement for food and nutritional security. © 2020 by the authors.
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    PublicationArticle
    Integrated Nutrient Management Improves the Productivity and Nutrient Use Efficiency of Lens culinaris Medik
    (MDPI, 2022) Sandeep Kumar; Surendra Kumar Sharma; Sanjay Kumar Thakral; Krishan Kumar Bhardwaj; Manoj Kumar Jhariya; Ram Swaroop Meena; Chetan Kumar Jangir; Sandeep Bedwal; Ram Dhan Jat; Ahmed Gaber; Ahmed A. Atta; Akbar Hossain
    Enhancing nutrient use efficiencies (NUEs) is an important factor in achieving the longterm sustainability of a production system. Our two-year experiment was aimed at accessing the NUEs of the integration of macro-and micronutrient fertilization responses of three lentil (Lens culinaris) cultivars. Three cultivars were planted in the main plots, and ten nutrient combinations were used in the sub-plots: N1, control; N2, 100% recommended dose of fertilizers (RDF) (20:40—N:P2O5); N3, vermicompost (VC) at 2 t ha−1; N4, 50% recommended dose of nitrogen (RDN) + 100% recommended dose of phosphorus (RDP) + VC at 1 t ha−1; N5, RDF + 0.5% ZnSO4; N6, RDF + 0.5% FeSO4; N7, RDF + 0.5% ZnSO4 + 0.5% FeSO4; N8, 50% RDN + 100% RDP + VC at 1 t ha−1 + 0.5% ZnSO4; N9, 50% RDN + 100% RDP + VC at 1 t ha−1 + 0.5% FeSO4; and N10, 50% RDN + 100% RDP + VC at 1 t ha−1 + 0.5% ZnSO4 + 0.5% FeSO4 . The results show that the cultivar HM-1 (1.59–1.61 Mg ha−1) recorded a significantly higher seed yield than cultivars Sapna (1.31–1.33 Mg ha−1) and Garima (both 1.30 Mg ha−1), while the cultivar Sapna had significantly more stover yield (1.86–1.90 Mg ha−1) than cultivar HM-1 (1.68–1.73 Mg ha−1). Cultivar HM-1 was more efficient in terms of partial factor productivity for N (77.5–78.5 kg kg−1), P (48.2–48.7 kg kg−1), K (143.6–145.5 kg kg−1), Zn (1336–1352 kg kg−1), and Fe (417–421 kg kg−1) than Sapna and Garima. Application of 50% N + 100% P + VC at 1.0 t ha−1 + 0.5% ZnSO4 + 0.5% FeSO4 resulted in higher seed yield (1.63–1.65 Mg ha−1) and agronomic efficiency for N (26.3–28.8 kg kg−1), P (12.42–13.63 kg kg−1), and K (52.3–57.4 kg kg−1) over other tested practices in both years. Hence, it could be concluded that considering the integrated nutrient management paradigm including 10 kg N ha−1 coupled with 40 kg P2O5 ha−1 through synthetic fertilizers, vermicomposting 1.0 t ha−1 as an organic source and foliar spray of 0.5% each of ZnSO4 and FeSO4 (N10) produced a 56.8% higher seed yield than the control, in addition to improving nutrient dynamics and NUEs for N, P, K, Zn, and Fe. Therefore, integrated fertilization coupled with cultivar selection could help to achieve the long-term food and nutritional sustainability targeted by the Sustainable Development Goals (SDGs). © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
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    PublicationReview
    Pulse-based cropping systems for soil health restoration, resources conservation, and nutritional and environmental security in rainfed agroecosystems
    (Frontiers Media S.A., 2023) Sandeep Kumar; K.A. Gopinath; Seema Sheoran; Ram Swaroop Meena; Ch. Srinivasarao; Sandeep Bedwal; Chetan Kumar Jangir; Kancheti Mrunalini; Ramdhan Jat; C.S. Praharaj
    Pulses are an important source of energy and protein, essential amino acids, dietary fibers, minerals, and vitamins, and play a significant role in addressing global nutritional security. The global pulse area, production, and average productivity increased from 1961 to 2020 (60 years). Pulses are usually grown under rainfed, highly unstable, and complex production environments, with substantial variability in soil and environmental factors, high year-to-year output variability, and variation in soil moisture. Since the last six decades, there is not much satisfactory improvement in the yield of pulses because of their cultivation in harsh environments, coupled with their continuous ignorance of the farmers and governments in policy planning. As a result, the global food supplies through pulses remained negligible and amounted to merely ~1.0% of the total food supply and 1.2% of the vegan food system. In this situation, protein-rich food is still a question raised at the global level to make a malnutrition-free world. Pulses are a vital component of agricultural biological diversity, essential for tackling climate change, and serve as an energy diet for vegetarians. Pulses can mitigate climate change by reducing the dependence on synthetic fertilizers that artificially introduce nitrogen (N) into the soil. The high demand and manufacture of chemical fertilizers emit greenhouse gases (GHGs), and their overuse can harm the environment. In addition, the increasing demand for the vegetal protein under most global agroecosystems has to be met with under a stressed rainfed situation. The rainfed agroecosystem is a shelter for poor people from a significant part of the globe, such as Africa, South Asia, and Latin America. Nearly, 83% [over 1,260 million hectares (ha)] of cultivated land comes under rainfed agriculture, contributing significantly to global food security by supplying over 60% of the food. In rainfed areas, the limitation of natural resources with the shrinking land, continuous nutrient mining, soil fertility depletion, declining productivity factor, constantly depleting water availability, decreasing soil carbon (C) stock, augmented weed menace, ecological instability, and reduced system productivity are creating a more challenging situation. Pulses, being crops of marginal and semi-marginal soils of arid and semi-arid climates, require less input for cultivation, such as water, nutrients, tillage, labor, and energy. Furthermore, accommodation of the area for the cultivation of pulses reduces the groundwater exploitation, C and N footprints, agrochemical application in the cropping systems, and ill effects of climate change due to their inherent capacity to withstand harsh soil to exhibit phytoremediation properties and to stand well under stressed environmental condition. This article focuses on the role of pulses in ecological services, human wellbeing, soil, environmental health, and economic security for advanced sustainability. Therefore, this study will enhance the understanding of productivity improvement in a system-based approach in a rainfed agroecosystem through the involvement of pulses. Furthermore, the present study highlighted significant research findings and policy support in the direction of exploring the real yield potential of pulses. It will provide a road map to producers, researchers, policymakers, and government planners working on pulses to promote them in rainfed agroecosystems to achieve the United Nations (UN's) Sustainable Development Goals (SDGs). Copyright © 2023 Kumar, Gopinath, Sheoran, Meena, Srinivasarao, Bedwal, Jangir, Mrunalini, Jat and Praharaj.
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    PublicationBook Chapter
    Recent strategies for pulse biofortification to combat malnutrition
    (Elsevier, 2022) Uma Nath Shukla; Manju Lata Mishra; Ram Swaroop Meena; Sandeep Kumar; Seema Sheoran; Sandeep Bedwal; Chetan Kumar Jangir; Nahid Khan; Sindhu Sheoran
    Malnutrition is a major challenge for the world to develop a think-tank to alleviate and provide the right access to food globally and also secure them nutritionally. Among various factors, these micronutrients, namely, zinc (Zn), iron (Fe), iodine (I), and selenium (Se) played important role in human health which is most deficient in the diet in developing countries including African and Asian Continent. According to WHO (2020), Asia stands top in the case of undernourished people (381 million), followed by Africa (250 million) and last Latin America and the Caribbean (48 million). In case of child malnutrition, approximately 191 million children of less than 5-year age were stunted and wasted during 2019, whereas 38 million children under less than 5 years were overweight. Although, there is more option to improve dietary foods with essential micronutrient and this can only be possible through food fortification, supplementation, dietary diversification, and biofortification. Among, biofortification with essential micronutrients in the targeted crop can be achieved through breeding, agronomic, genetic engineering, and microorganism approaches. These approaches can be employed in the pulse crops to exploit essential micronutrients. Few pulse crops like pigeon pea, chickpea, and lentils showed great potential to overcome micronutrient deficiencies prevalent among the vulnerable group. This chapter is dedicated to the importance of pulse crops along with their nutritive values and bioavailability of micronutrients in human beings’ vis-a-vis enrichment of pulse grains through biofortification involving various approaches. Also enlighten the role of pulse biofortification in providing opportunities, challenges, and future strategies to alleviate malnutrition across the world. © 2022 Elsevier Inc. All rights reserved.
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    PublicationArticle
    Release behaviour of iron and zinc in different textured soil and its distribution in rice plant (Oryza sativa L.) in North West of India
    (Slovak University of Agriculture in Nitra, 2023) Chetan Kumar Jangir; P.S. Sangwan; Dheeraj Panghaal; Sandeep Kumar; Ram Swaroop Meena; Bharti; Ram Dhan Jat; Narendra Singh
    The present study aimed to assess the relationship of soil properties with extractable zinc (Zn) and iron (Fe) in soil as well as rice plant at different incubation period. The soil and plant samples were collected from 10 districts (Yamuna Nagar, Sonipat, Jind, Panipat, Karnal, Panchkula, Kaithal, Rohtak Ambala, and Kurukshetra) of RWCS (Rice wheat cropping system) of northwest Haryana of India. The effects of soil properties especially soil texture with the micronutrient in soil and rice plant at different incubation period have not been well studied. In the lab-cum-survey study, the analysis of grain samples collected from different districts of Haryana under varied soil texture showed a positive correlation between Zn/Fe concentration in grain and mean release rate of Zn/Fe in soil (Zn – 0.80; Fe – 0.98). The highest Fe concentration in grain was found in clayey soils (59.74–60.41 mg/kg) having a maximum mean soil Fe release rate (17.98–18.03 mg/kg). Likewise, the highest Zn concentration in grain was recorded in clayey soils (29.71–30.57 mg/kg) of Yamuna Nagar and Panchkula, which has the highest mean soil Zn release rate (1.03–1.14 mg/kg). Univariate and multivariate analysis under principal component analysis (PCA) was carried out to determine the linear relationship between soil properties and extractable soil Zn and Fe concentration as well correlogram correlation matrix using for soil properties with grain Zn and Fe concentration. Hence, the study concluded that the detection for Zn and Fe are more successful in soils with a higher proportion of clay particles than in sandy soils. Plant uptake potential is highly influenced by soil micronutrient interactions with soil properties, especially soil texture, which can be predicted by extractable soil micronutrients. © 2023 Slovak University of Agriculture in Nitra. All rights reserved.
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    PublicationBook Chapter
    Remote sensing for agriculture and resource management
    (Elsevier, 2021) Sandeep Kumar; Ram Swaroop Meena; Seema Sheoran; Chetan Kumar Jangir; Manoj Kumar Jhariya; Arnab Banerjee; Abhishek Raj
    Exploitation of the infinitive natural resources is an alarming issue on the plate. Therefore, estimation and swift observation of the natural resources is a need of the hour. Geospatial technological development is playing an important role to collect the information from the targeted objectives. Geospatial technological is helpful to analyze the natural resources viz., land, water, air, energy, nutrients, forest, watershed, etc. for policy and planning toward their conservation in order to achieve food, nutritional, environmental, and economic security. Agriculture is a key sector on the planet for exploitation and interfere the natural resources. For collecting reliable and timely information about the nature, the extent and geographical boundaries, temporal behavior of natural resources is the first step in the way of their monitoring, management and efficient use of them in the agriculture. Remote sensing (RS) has emerged as a powerful geospatial tool for the identification, characterization, and land marking of these resources over a larger surface area in agricultural system. It provides valuable, accurate and timely information in high spatial and spectral resolutions about the agricultural urbanization, crop use patterns, soil, water, watersheds, desertification, agroforestry, rangelands, and climatic variations and their impact on agriculture. In crop production, RS provides the spatial information of crop type and area estimation followed by assessing the yield potential, ecosystem health and proper management of insect-diseases and weeds based on the spectral reflectance of the object by using modeling and vegetative indices. Moreover, RS has a potential to study the soil system like soil characteristics, types, spatial variability, assessment of land suitability, land capability, carbon dynamics, soil moisture, land use/land cover change, soil degradation, erosion identification, and remediation for agriculture applications. RS helps to generate a precise database in short time from the field. Predication for the advance planning, yield estimation of the covering areas, crop sections, drought management help in policymaking for the better production and reduce the risk from the aberrant weather conditions. It helps in proper use and sustainable management of the costly resources in agriculture. This chapter extensively discusses the potential of RS in management of agriculture and natural resources in a sustainable manner. In this context, in India, several programs/projects such as FASAL, CAPE, NNRMS, NADAMS, IMSD, CHAMAN, etc. are effectively running for management of agricultural system in one and another way. In this context, this chapter is useful for the policymaker students, scientists, producers for the agroecosystems management and promote the advance food and environmental security targeted as one of the United National Sustainable Development Goals. © 2022 Elsevier Inc.
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    PublicationBook Chapter
    Residual nitrogen for succeeding crops in legume-based cropping system
    (Elsevier, 2022) Chetan Kumar Jangir; Anjali Thakur; Hemali Bijani; Praveen Thakur; Sandeep Kumar; Ram Swaroop Meena; Sandeep Bedwal; Kavita Rani; Uma Nath Shukla; Ajit Kumar Meena; Purushottam Dev
    A number of challenges will face the world in the years to come, including food security, climate change risks, and increasing demand for energy. Therefore, agriculture and food systems are increasingly focused on producing sustainably. By delivering multiple services in line with sustainability principles, legume crops could play a significant role in this context. In addition, legumes are also potentially competitive crops, which are useful for increasing crop diversity and reducing the use of external inputs in modern cropping systems due to their environmental and socioeconomic benefits. In a cropping system involving legumes most important aspect is N balance which summarizes the complex N inflow and outflow of the system. Legumes hold potential to variegate cropping systems, restore inter-related biodiversity, and assist break-crops. The key part of the residual N is obtained from rhizodeposition and recoverable debris which become part of the active soil organic matter pool that derives the N pool in soil for the long term. The ability of legumes to fix atmospheric nitrogen as well as produce biomass and sequester carbon (C) is a crucial factor in reducing greenhouse gases emissions. Therefore, legumes have been envisioned as a solution for decreasing nitrous oxide (N2O) emissions. The foremost goal of writing this review article is to have an enhanced interpretation of nitrogen dynamics, its residual effect, increase its use efficiency under diverse agroclimatic conditions, its influence on C stabilization, climate change, and enhance soil health by stimulating microbial activity and biomass. In fact, legumes are expected to play an increasingly critical role over the coming decades. © 2022 Elsevier Inc. All rights reserved.
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    PublicationArticle
    Spatial Variability and Statistical Analysis of Soil Properties in the Rice Wheat-Based Systems of North-West India
    (Taylor and Francis Ltd., 2024) Chetan Kumar Jangir; P.S. Sangwan; Dheeraj Panghaal; Sandeep Kumar; Ram Swaroop Meena; Bharti; Ram Dhan Jat; Narendra Singh
    There are limited reports about the impacts of long-term rice wheat cropping system (RWCS) on soil properties and nutrient stocks under smallholder farmer’s conditions in developing counties. The study was carried out in RWCS in Haryana (10 districts) of North-West India in order to map out some soil properties and assess their variability within the area. From the study area, a total of 150 surface soil samples (15 samples each district) were collected using Global Positioning System (GPS) after harvest of wheat crop. Then, soil properties, that is, pH, electrical conductivity (EC), soil organic carbon (SOC), carbonate content, cation exchange capacity (CEC), salinity content (Na+, K+, Ca2+ + Mg2+) soil available nutrients (NPK, Fe & Zn), and micronutrient fractions were measured in the laboratory. All soil properties significantly changed under RWCS, except for bulk density, SOC, and SAR variables. The SOC stock varied significantly among the majority of RWCS in north-western India but was not significantly different in total nitrogen (TN) stocks. After log-transformation of data, classical statistics were used to describe the soil properties, and one-way analysis of variance. The PCA chosen soil properties explained 81.37% of the soil quality variability among the RWCS. Such soil properties and nutrient stock variability among the RWCS suggested the introduction of suitable management practices that sustain the soil system of the RWCS with poor properties and nutrients. On the basis of the linear function, soil chemical properties (44.65%) contributed more to soil quality index (SQI) than physical ones. © 2023 Taylor & Francis Group, LLC.
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