Dwarika Bhattarai

ORCID: 0000-0002-9241-693X
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Research Areas
  • Soil Carbon and Nitrogen Dynamics
  • Nitrogen and Sulfur Effects on Brassica
  • Soil and Water Nutrient Dynamics
  • Phosphorus and nutrient management
  • Crop Yield and Soil Fertility
  • Coal and Its By-products
  • Soil and Unsaturated Flow
  • Composting and Vermicomposting Techniques
  • Biofuel production and bioconversion
  • Heavy metals in environment
  • Sunflower and Safflower Cultivation
  • Climate change impacts on agriculture
  • Lipid metabolism and biosynthesis
  • Organizational Leadership and Management Strategies
  • Insect Utilization and Effects
  • Rice Cultivation and Yield Improvement
  • Plant Micronutrient Interactions and Effects
  • Innovative Approaches in Technology and Social Development
  • Biodiesel Production and Applications
  • Research on scale insects
  • Microbial Metabolic Engineering and Bioproduction
  • Peatlands and Wetlands Ecology
  • Agriculture, Soil, Plant Science
  • Animal and Plant Science Education
  • Electrokinetic Soil Remediation Techniques

South Dakota State University
2020-2025

Climate prediction models suggest that agricultural productivity will be significantly affected in the future. The expected rise average global temperature due to higher release of greenhouse gases (GHGs) into atmosphere and increased depletion water resources with enhanced climate variability a serious threat world food security. Moreover, there is an increase frequency severity long-lasting drought events over 1/3rd landmass five times demand deficits during 21st century. top three...

10.3390/earth3010004 article EN cc-by Earth 2022-01-07

Dwindling supplies of fossil fuels and their deleterious impacts on human health the global environment have intensified search for substitute energy sources. Biodiesel has been identified as a promising renewable diesel fuel due to several comparable sustainable properties. However, approximately 95% biodiesel is derived from edible oil crops, threatening current food supplies. Therefore, production potential inexpensive, non-edible, non-conventional bioenergy such Jatropha (Jatropha curcas...

10.3390/inventions6040060 article EN cc-by Inventions 2021-09-23

Applying biochar and using cover crops are two potential approaches to reduce greenhouse gas (GHG) emissions. However, the effectiveness of these methods, individually or in combination, salt-affected soils remains unclear. Thus, objective was determine impact barley (Hordeum vulgare) on N2O CO2 emissions from soil. During 28-day replicated study, GHG were measured near-continuously number nirK, nirS, qnorB, nosZ gene copies 12 28 days after planting (DAP). Biochar accelerated emergence...

10.1038/s41598-025-93198-9 article EN cc-by-nc-nd Scientific Reports 2025-03-14

Abstract The slowly establishing salt‐tolerant perennial grasses reduced nitrous oxide (N 2 O‐N) emissions from saline/sodic soil compared to barren areas. Other species may accelerate vegetative establishment and reduce N O‐N emissions. In a greenhouse study, barley ( Hordeum vulgare L.), Florida broadleaf mustard Brassica juncea Kernza intermediate wheatgrass [ Thinopyrum intermedium (Host) Barkworth & D. R. Dewey] were grown for 63 days compare shoot biomass chemical composition,...

10.1002/agj2.21573 article EN cc-by-nc-nd Agronomy Journal 2024-04-29

Abstract Although salinity and sodicity are worldwide problems, information on greenhouse gas (GHG) emissions from agricultural salt‐affected soils is scarce. The CO 2 –C N O–N were quantified three zones intertwined within a single U.S. northern Great Plains field: highly productive zone (electrical conductivity with 1:1 soil/water mass ratio [EC ] = 0.4 dS m –1 ; sodium adsorption [SAR] 1.8), transition (moderately salt‐affected; EC 1.6 SAR 4.99), saline/sodic (EC 3.9 22). In each zone,...

10.1002/jeq2.20223 article EN cc-by Journal of Environmental Quality 2021-04-07

We examine the interactions, decisions, and evaluations of an interdisciplinary team researchers tasked with developing artificial intelligence-based agricultural decision support system that can provide farmers site-specific information about managing nutrients on their land. answer following research questions: (1) How does a relational perspective help conceptualize 'responsibility' in project develops precision agriculture (PA)? (2) What are some lessons for embarking similar technology...

10.1080/23299460.2023.2202093 article EN cc-by Journal of Responsible Innovation 2023-01-02

Abstract Carinata ( Brassica carinata A. Braun), a non‐food oilseed crop and an alternative bio‐jet fuel feedstock, has received attention for its potential as low‐input option production in the semi‐arid region of Northern Great Plains United States. Research addressing impacts nitrogen (N) sulfur (S) fertilizers on soils greenhouse gas (GHG; CO 2 , N O, CH 4 ) emissions from are limited. Thus, objective this study was to evaluate impact different rates S applied soil properties GHG...

10.1111/gcbb.12784 article EN cc-by GCB Bioenergy 2020-12-04

Abstract Carinata ( Brassica carinata A. Braun), a non‐food oilseed and an alternative biofuel feedstock, has received attention for its potential as low‐input option production in the semi‐arid regions of Northern Great Plains (NGP). This study was conducted to (a) determine economic optimum N S fertilization rates (b) interactive effects on seed yield agronomic traits carinata. The field experiment 2017 2018 at Brookings, SD, had four (56, 84, 112, 140 kg ha −1 ) three (0, 22, 45 )....

10.1002/agj2.20501 article EN cc-by-nc-nd Agronomy Journal 2020-10-24

Large-scale burning of rice straw causes air pollution and deterioration soil health, which challenges the sustainability rice–wheat system (RWS) in north-western India. In a field experiment on sandy loam (Typic Ustochrept) at Punjab Agricultural University, India, with split plot design, effects four nitrogen (N) levels (0, 90, 120, 150 kg N ha−1) main plots (RS) incorporation 5, 7.5, 10 Mg wheat sub-plots were studied after 7 years carbon (C) pools maximum tillering (MT) flowering (FL)...

10.3390/agronomy12112774 article EN cc-by Agronomy 2022-11-07

Abstract Globally, agricultural scientists are challenged with creating, testing, and validating climate‐smart nutrient strategies that reduce greenhouse gas emissions while increasing food security. This study determined maize ( Zea mays L.) N recommendations bias for N‐rate studies conducted in South Dakota using models created western Minnesota, Iowa, Eastern North Dakota, Nebraska, Dakota. From 2019 to 2021, 16 rate were long‐term no‐tillage (>6 years) fields located In the randomized...

10.1002/agj2.21694 article EN cc-by-nc Agronomy Journal 2024-09-28
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