Optimizing Tomato Yield and Quality in Greenhouse Cultivation Through Fertilization and Soil Management

Tomato (Solanum lycopersicum L.) production in greenhouse systems increasingly relies on integrated fertilization and soil management strategies to enhance yield, fruit quality, and resilience to biotic stressors. This study evaluated the combined effects of five fertilization regimes and two contrasting soil tillage systems—rotary tillage (RT) and conventional plowing (P)—on the performance of greenhouse-grown ‘Bacuni’ tomatoes. Experimental assessments encompassed biometric traits, photosynthetic pigments (chlorophyll and anthocyanins), carotenoid concentrations (carotenes and lycopene), soluble solids, and total dry matter contents, as well as agronomic variables including fruit weight, fruit number, and total yield. Incidence of key pests and diseases, alongside soil compaction levels, were also quantified. Fertilization with Nutriplant 20:20:20, as well as the application of Albit both resulted in a marked stimulation of vegetative growth, while the highest yields were recorded in P × Orgevit + Kerafol (6962.65 g plant−1; +44.6% vs. control) and RT × Albit + Turboroot (6208.22 g plant−1; +16.2% vs. control). Rotary tillage consistently improved nutrient uptake efficiency and yield relative to plowing, highlighting the role of soil structure in modulating plant performance. Treatments with Albit and Turboroot also enhanced resistance to Tetranychus urticae and Xanthomonas campestris, indicating a dual benefit for productivity and phytosanitary status. The results underscore the importance of harmonizing fertilization strategies with soil management practices to optimize greenhouse tomato production. Integrative approaches that combine biostimulants, organic amendments, and soil structural optimization offer a viable pathway toward high-yield, high-quality, and disease-resilient crops in controlled environment agriculture.