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1

Satendra Babu

Abstract:
A study conducted in Prayagraj, India, using a randomized complete block design, examined the impact of different fertilizer treatments on tomato yield. Tomatoes are a widely grown and consumed fruit around the world, with demand for high-quality products increasing. The use of synthetic fertilizers and pesticides in tomato cultivation has raised concerns about their environmental and health impacts. Organic fertilizers offer a sustainable and eco-friendly alternative, providing gradual release of nutrients from natural sources like compost and animal manure. These organic fertilizers can improve soil structure, crop yields, and biodiversity. Results showed that a combination of organic and inorganic fertilizers led to higher yields and profitability compared to using chemical fertilizers alone. The application of organic manure alongside chemical fertilizers improved soil nutrient absorption, root and shoot development, and overall crop output.


1-8
2

Dr. Pappu Lal Meena

Abstract:
This study investigates the water quality of natural sources in Dholpur District, Rajasthan, using a physico-chemical approach to assess the suitability of water for drinking, irrigation, and other domestic purposes. The research analysis is on water collected from wells, rivers and ponds within the district. In the laboratory, key parameters including pH, electrical conductivity (EC), total dissolved solids (TDS), turbidity, hardness, and concentrations of essential ions (calcium, magnesium, chloride, sulphate, bicarbonate) were measured. Our results suggest that water quality varies across different sources, some of which appear to be contaminated by the discharge of industrial effluents, agricultural runoff and insufficient treatment of wastewater. Some samples had pH levels that drifted outside the acceptable range for drinking water and high concentrations of TDS were present in certain places that could be harmful to human health and agriculture. The study emphasizes the important need to adopt sustainable water resource management practices and improved monitoring systems for water resources in Dholpur. The study also recommends ways in which water quality can be improved through filtration, regular testing and community based water management initiatives based on the physicochemical properties. This research provides information to understand the local water issues, and how policymakers can address the water scarcity and pollution in the region.


9-21
3

Dr. Jeet Singh and Dr. Yogender Singh

Abstract:
This paper examines entropy production in open thermodynamic systems through the lens of the canonical ensemble, extending classical non-equilibrium thermodynamics into the statistical mechanical domain. We develop a framework in which the entropy production rate is derived directly from the partition function of a system coupled to one or more particle and heat reservoirs, treating the irreversible contributions systematically rather than as phenomenological add-ons. Starting from the Gibbs entropy formula and the Boltzmann weight distribution, we show that the total entropy production can be decomposed into internal irreversibilities associated with finite thermodynamic forces and boundary terms arising from the exchange of matter and energy with the environment. Numerical results from a three-level model system illustrate how the canonical distribution shifts under non-equilibrium driving, yielding entropy production rates that depart measurably from the linear Onsager regime at moderate force magnitudes. The contributions of heat conduction, viscous dissipation, chemical reactions, and diffusive transport to total entropy production are quantified, with heat conduction dominating at 37.4% in the parameter range studied. The findings support the use of canonical ensemble methods as a bridge between microscopic dynamics and macroscopic irreversible processes, with implications for the design of heat engines, biological energy transduction, and driven chemical networks.


22-32
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