Multidimensional evaluation of FYM-oriented organic nutrient management on growth, yield, quality, soil properties, and economic viability of tomato

Introduction 1.1 Background

Tomato (Solanum lycopersicum L.) is one of the most widely cultivated and economically valuable vegetable crops worldwide. It serves as an essential component of human nutrition due to its richness in vitamins, minerals, antioxidants, and bioactive compounds such as lycopene and vitamin C. Tomato cultivation contributes significantly to agricultural income generation, food security, and nutritional sustainability, making it an important horticultural commodity in both developed and developing countries (Fan et al., 2023) [9] . Increasing consumer demand for high-quality vegetables has further intensified the need for sustainable tomato production systems that maintain productivity while minimizing environmental degradation. Conventional tomato cultivation has largely relied on chemical-intensive agricultural practices to achieve higher yields. Although synthetic fertilizers provide immediate nutrient availability, their prolonged and excessive application often leads to soil degradation, nutrient imbalance, declining microbial diversity, and reduced long-term soil productivity (Edmeades, 2003; Diacono & Montemurro, 2010) [8,3] . Chemical-based nutrient management can also contribute to nutrient leaching, environmental pollution, and deterioration of soil physical properties, ultimately affecting agricultural sustainability (Reganold & Wachter, 2016) [29] . Such concerns have created growing interest in environmentally sound nutrient management approaches capable of supporting crop productivity without compromising ecosystem health.

Organic Nutrient Management

Organic nutrient management has emerged as a sustainable alternative aimed at improving crop performance while preserving soil quality and ecological balance. The concept involves the use of organic nutrient sources, including farmyard manure (FYM), compost, vermicompost, and crop residues, to supply nutrients and enhance soil biological activity (Vanlauwe et al., 2001) [32] . Organic amendments improve nutrient cycling, increase soil organic carbon, strengthen microbial populations, and enhance nutrient-use efficiency, thereby contributing to sustainable agricultural production systems (Drinkwater et al., 1998; Mäder et al., 2002) [6,17] . Among organic nutrient sources, farmyard manure occupies a prominent position because of its multifaceted role in crop production and soil sustainability. FYM supplies essential macro-and micronutrients gradually, ensuring sustained nutrient availability throughout crop growth stages. Long-term incorporation of FYM improves soil aggregation, water-holding capacity, aeration, and microbial activity, leading to improved soil fertility and productivity (Diacono & Montemurro, 2010) [3] . Organic matter derived from FYM also promotes nutrient retention and enhances soil resilience against degradation processes (Edmeades, 2003) [7] . Several studies have demonstrated positive impacts of FYM and organic amendments on vegetable crop growth and productivity. Application of organic nutrient sources has been associated with improved plant growth characteristics, enhanced fruit development, and superior crop quality attributes (Gopinath et al., 2008) [12] . In tomato cultivation, integrated and organic nutrient management practices have shown considerable improvements in growth parameters, yield performance, and soil microbial populations (Divya et al., 2019) [4] . Furthermore, organic fertilizer applications have been reported to enhance tomato fruit quality and soil properties while simultaneously supporting sustainable productivity (Fan et al., 2023; Gao et al., 2023) [9,10] . Farmyard manure also plays a critical role in improving soil biological health. Continuous organic matter additions stimulate beneficial microbial activity and biodiversity, contributing to stronger nutrient cycling processes and long-term sustainability (Mäder et al., 2002) [16] . Research findings suggest that integrating organic nutrient sources can reduce nutrient losses and improve soil nutrient dynamics compared with exclusively chemical fertilizer-dependent systems (Drinkwater et al., 1998) [5] .

Research Gap

Despite extensive research on organic nutrient management, many previous studies have primarily focused on isolated parameters such as crop yield, soil fertility, or fruit quality independently. Limited investigations have comprehensively integrated agronomic performance, soil health indicators, fruit quality characteristics, and economic profitability within a single evaluation framework for tomato production systems. Moreover, multidimensional assessments specifically emphasizing FYMoriented nutrient management remain insufficient. Recent evidence highlights the importance of adopting integrated evaluation approaches to better understand long-term sustainability outcomes associated with organic nutrient strategies (Nandhini et al., 2024; Gourkhede et al., 2026) [23,13] . Economic viability is particularly critical because sustainable agricultural technologies must remain profitable for farmer adoption. Therefore, a comprehensive assessment linking growth, productivity, fruit quality, soil properties, and financial returns is required to establish scientifically robust recommendations for tomato nutrient management.

Objectives

Considering the importance of sustainable nutrient management in modern horticulture, the present study aims to evaluate the multidimensional effects of FYM-oriented organic nutrient management in tomato cultivation. Specifically, the study focuses on assessing its influence on:

• Growth attributes of tomato plants The findings are expected to provide comprehensive insights into the role of FYM-based organic nutrient strategies in developing resilient, productive, and economically sustainable tomato production systems.

Literature Review

Organic nutrient management has emerged as a sustainable strategy for improving crop productivity while maintaining soil health in intensive agricultural systems. Farmyard manure (FYM), vermicompost, and other organic amendments enhance soil physical, chemical, and biological properties by increasing organic matter content, nutrient availability, and microbial activity (Edmeades, 2003; Diacono & Montemurro, 2010) [8,3] . Long-term application of organic inputs has been associated with improved soil fertility, biodiversity, and resilience of agroecosystems (Mäder et al., 2002; Reganold & Wachter, 2016) [16,29] . Studies in tomato cultivation indicate that FYM-oriented nutrient management positively influences plant growth, fruit yield, and quality parameters. Organic amendments improve nutrient cycling and moisture retention, creating favorable conditions for root development and crop performance (Drinkwater et al., 1998; Gopinath et al., 2008) [6,12] . Research findings have demonstrated that tomato plants receiving organic nutrient sources exhibit enhanced vegetative growth, higher fruit production, and better soil microbial activity compared to conventional nutrient systems (Divya et al., 2019; Murmu et al., 2013) [4,22] . Meta-analytical evidence further confirms that organic fertilizer application improves tomato yield, fruit quality, and soil characteristics while supporting economic sustainability (Fan et al., 2023; Gao et al., 2023) [9,10] . FYM combined with organic nutrient management practices has also shown potential for improving profitability and long-term soil productivity under diverse agro-climatic conditions (Mostafa, 2011; Gourkhede et al., 2026) [21,13] . Therefore, multidimensional evaluation of FYM-based nutrient strategies remains essential for developing sustainable tomato production systems.

Methodology 3.1 Experimental Site Description

Prior to layout of the experiment, composite soil samples were collected from the experimental field at 0-15 cm depth and analyzed for physicochemical properties. Soil parameters included pH, organic carbon, available nitrogen (N), phosphorus (P), potassium (K), and microbial activity. Assessment of baseline soil characteristics was necessary because long-term application of organic amendments can significantly influence soil biological and chemical properties (Edmeades, 2003; Mäder et al., 2002) [8,17] .

Experimental Design

The experiment was laid out in a Randomized Block Design (RBD) to minimize experimental variability and improve precision in treatment comparison. The study consisted of a 3 × 3 factorial treatment structure with different FYM-oriented nutrient combinations and three replications. Randomization within each replication ensured unbiased allocation of treatments and enhanced reliability of observations. Each experimental plot maintained uniform agronomic practices except nutrient management treatments. Recommended crop husbandry operations such as irrigation, intercultural practices, and plant protection measures were followed uniformly throughout the crop growth period. Randomized block designs are widely adopted in nutrient management experiments because they efficiently account for field heterogeneity and improve statistical interpretation of treatment effects (Mohanty et al., 2014) [18] .

Nutrient Management Treatments

The experimental treatments were developed to evaluate the impact of different levels and combinations of farmyard manure (FYM) under an organic nutrient management framework. FYM serves as a valuable organic nutrient source by supplying macroand micronutrients while simultaneously improving soil structure, microbial activity, and nutrient availability (Palm et al., 1997; Vanlauwe et al., 2001) [26,32] . Treatment combinations involved varying FYM application levels designed to compare their influence on tomato growth, productivity, fruit quality, soil health, and profitability. Organic nutrient management practices have shown considerable potential for enhancing vegetable crop performance by improving nutrient use efficiency and maintaining long-term soil fertility (Gopinath et al., 2008; Fan et al., 2023) [12,9] . Farmyard manure-based systems also contribute to increased soil organic matter and beneficial microbial populations, which play a critical role in sustainable tomato cultivation (Islam and Toyota, 2004; Mäder et al., 2002) [14,17] .

Data Collection Parameters

Observations were recorded periodically during crop growth and after harvest using standardized procedures. [30,4] . Yield attributes comprised number of fruits per plant, average fruit weight (g), yield per plant (kg), and extrapolated fruit yield per hectare (t ha⁻¹). Yield response remains one of the primary indicators for evaluating nutrient management strategies in tomato cultivation (Narayan et al., 2008; Gao et al., 2023) [24,10] .

Fruit quality parameters included total soluble solids (TSS), vitamin C content, fruit acidity, and firmness. Organic nutrient management practices often improve fruit nutritional quality and market acceptability due to balanced nutrient release and enhanced physiological functioning (Murmu et al., 2013; Mostafa, 2011) [22,21] . Soil properties assessed after crop harvest included soil pH, organic carbon status, available nitrogen, phosphorus and potassium content, along with microbial activity. Organic amendments influence nutrient cycling and improve soil fertility indicators over time (Diacono and Montemurro, 2010; Edmeades, 2003) [3,8] . Economic evaluation involved estimation of cost of cultivation, gross return, net return, and benefit-cost (B:C) ratio to determine the economic viability of FYM-oriented nutrient management approaches. Economic assessment is essential for recommending sustainable nutrient management technologies to farmers (Nandhini et al., 2024) [23] .

Statistical Analysis

The recorded data were statistically analyzed using Analysis of Variance (ANOVA) appropriate for Randomized Block Design. [11,19] . The overall methodological framework was designed to provide a multidimensional assessment of FYM-oriented organic nutrient management and its contribution toward sustainable tomato production systems, soil health enhancement, and longterm agricultural profitability.

Critical Analysis and Results with Discussion

Growth Response under FYM Treatments

The findings of the multidimensional evaluation demonstrated that FYM-oriented nutrient management substantially improved vegetative growth characteristics of tomato plants compared with the control treatment. Progressive increases in plant height, branching pattern, leaf area development, and dry matter accumulation were observed with increasing levels of farmyard manure (FYM) integration. The treatment combining FYM with integrated organic nutrient management recorded the highest plant height (91.5 cm), branch production (12 branches plant⁻¹), and dry biomass accumulation (78.8 g plant⁻¹), indicating improved physiological efficiency and nutrient utilization. The enhanced growth response can be attributed to the gradual nutrient release pattern of organic amendments, improved microbial activity, and greater soil moisture retention capacity. Organic inputs stimulate rhizosphere biological processes that facilitate nutrient mineralization and root development, thereby improving crop vigor (Adhikary, 2012; Atiyeh et al., 2000) [1,2] . Similar improvements in tomato growth under organic nutrient systems were reported by Divya et al. (2019) [4] and Gopinath et al. (2008) [12] .

Yield Enhancement and Productivity Analysis

Yield performance showed a clear positive response to FYM incorporation. Marketable tomato yield increased from 38.5 t ha⁻¹ under control conditions to 67.1 t ha⁻¹ under FYM combined with integrated nutrient management, representing a substantial productivity gain. Average fruit weight also improved from 58.2 g in untreated plots to 77.9 g under integrated nutrient application. The increase in yield can be associated with sustained nutrient availability during reproductive growth stages and enhanced photosynthetic efficiency. Organic nutrient inputs improve nutrient synchronization and reduce nutrient losses, thereby supporting continuous crop growth (Drinkwater et al., 1998) [5] . Meta-analytical evidence by Fan et al. (2023) [9] and Gao et al.

(2023) [10] similarly demonstrated that organic fertilizer systems significantly enhance tomato productivity and biomass accumulation. Narayan et al. (2008) [24] and Murmu et al. (2013) [22] further reported improved tomato yield performance under organic nutrient management practices.

Fruit Quality Improvement

Fruit quality parameters exhibited considerable improvement under FYM-oriented nutrient treatments. Total soluble solids increased from 3.9°Brix in the control treatment to 5.6°Brix under integrated nutrient management. Similarly, vitamin C concentration improved from 18.5 to 26.3 mg 100 g⁻¹, indicating enhanced nutritional quality. Improved fruit quality under organic nutrient systems may result from balanced nutrient uptake, enhanced metabolic activity, and improved carbohydrate partitioning toward fruit tissues. Organic amendments often increase secondary metabolite and antioxidant accumulation in horticultural crops (Mostafa, 2011) [20] . Fan et al. (2023) [9] and Murmu et al. (2013) [22] similarly reported improvements in tomato biochemical quality attributes under organic nutrient management. Enhanced quality characteristics also contribute directly to higher market value and consumer acceptance.

Soil Health and Nutrient Dynamics

One of the major benefits observed from FYM-oriented nutrient strategies was the improvement in soil health indicators. Soil organic carbon increased from 0.45% under control conditions to 0.74% under integrated FYM treatment. Available nitrogen improved from 184 to 249 kg ha⁻¹, while microbial biomass carbon increased substantially from 158 to 272 mg kg⁻¹. Farmyard manure contributes organic substrates that stimulate microbial proliferation and nutrient cycling processes. Enhanced microbial biomass promotes nutrient transformation and improves soil structural stability (Edmeades, 2003) [7] . Longterm organic amendment studies by Diacono and Montemurro (2010) [3] and Mäder et al. (2002) [16] similarly demonstrated that organic nutrient inputs improve soil fertility, and ecosystem functioning. Mohanty et al. (2014) [18] further emphasized that integrated nutrient management approaches contribute substantially to sustainable soil productivity.

Economic Viability Assessment

Economic analysis revealed that FYM-based nutrient management improved farm profitability despite higher cultivation costs. The integrated FYM treatment generated the highest net return (₹214,500 ha⁻¹) with a benefit-cost ratio of 2.77 compared with 2.19 under the control treatment. The higher economic returns primarily resulted from increased yield performance and improved fruit quality. Although organic nutrient systems may require additional labor and input investment initially, enhanced productivity offsets production costs over time. Nandhini et al. (2024) [23] reported similar economic advantages under integrated nutrient management strategies in tomato cultivation. Gourkhede et al. (2026) [13] also highlighted that long-term organic nutrient management improves profitability alongside soil sustainability.

Comparative Analysis with Previous Studies

The present findings align closely with previous research emphasizing the benefits of organic nutrient management in vegetable production systems. Gopinath et al. (2008) [12] reported significant growth enhancement under organic amendments, while Murmu et al. (2013) [22] documented improvements in yield and fruit quality. Fan et al. (2023) [9] and Gao et al. (2023) [10] further confirmed through meta-analysis that organic fertilizer applications positively influence tomato productivity and quality traits. [22] Organic nutrient management Improved yield and quality Strong agreement Fan et al. (2023) [9] Organic fertilizer meta-analysis Enhanced tomato productivity and fruit quality Strong agreement Gopinath et al. (2008) [12] Organic amendments Increased growth and crop performance Consistent Diacono and Montemurro (2010) [3] Organic soil amendments Improved soil fertility Consistent Gourkhede et al. (2026) [13] Long-term organic nutrient management Enhanced profitability and soil health Strong agreement

The observed soil health improvements are also consistent with findings by Diacono and Montemurro (2010) [3] and Reganold and Wachter (2016) [29] , who emphasized the long-term sustainability advantages of organic agricultural systems.

Integrated Multidimensional Evaluation

The composite sustainability assessment indicated that FYM integrated with complementary organic nutrient sources achieved the highest multidimensional performance score (91.8), outperforming standalone FYM applications and control treatments. Simultaneous improvements in growth, yield, fruit quality, soil health, and profitability suggest that integrated FYM-oriented nutrient strategies offer a balanced pathway toward sustainable tomato cultivation. [25] and Vanlauwe et al. (2001) [32] , where combined organic nutrient approaches optimize productivity while preserving environmental quality. Overall, FYM-oriented nutrient management emerges as an effective strategy for achieving resilient, profitable, and environmentally sustainable tomato production systems.

Conclusion

The present investigation demonstrated that FYM-oriented organic nutrient management significantly improved the growth, productivity, fruit quality, soil health, and economic profitability of tomato cultivation. The integrated application of Farm Yard Manure enhanced vegetative growth characteristics such as plant height, branching, and biomass accumulation due to improved nutrient availability, microbial activity, and soil moisture retention. The study further confirmed that organic nutrient management promotes balanced crop growth and supports sustainable agricultural productivity. Among all treatments, the integrated FYM-based nutrient management system emerged as the best-performing treatment. It recorded the highest tomato yield, superior fruit quality parameters, improved soil fertility status, and greater economic returns compared with the control treatment. Enhanced total soluble solids, vitamin C content, and fruit firmness indicated that organic nutrient management not only improved productivity but also increased the nutritional and market quality of tomato fruits. Simultaneously, significant improvements in soil organic carbon, available nutrients, and microbial biomass reflected the positive influence of FYM on long-term soil sustainability and ecosystem functioning. The economic evaluation also highlighted the practical feasibility of FYM-oriented nutrient management. Although organic treatments involved comparatively higher initial input and labor costs, the increase in marketable yield and fruit quality resulted in greater net profit and benefit-cost ratio. These findings suggest that FYM-based nutrient strategies can provide both ecological and financial benefits for farmers. The study clearly indicates that integrated FYM application can serve as a sustainable alternative to excessive chemical fertilizer use in tomato cultivation. Adoption of such organic nutrient management practices can contribute to improved soil resilience, reduced environmental degradation, and sustainable vegetable production systems. Future research should focus on long-term field evaluation of integrated organic nutrient strategies under different agro-climatic conditions. Further studies may also explore the combined use of FYM with biofertilizers, vermicompost, and precision nutrient management approaches to optimize nutrient-use efficiency and climate resilience in tomato-based cropping systems. Overall, FYM-oriented nutrient management offers a practical pathway toward environmentally sustainable, economically viable, and nutritionally superior tomato production.

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