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Resource-Efficient Strip-Mulching Technology for Melon Production in Arid Uzbekistan: Polymer Input, Irrigation Water Savings, Yield, and Economic Assessment

Xamidulla AmirovDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanShavkat MamasovDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanSafar SadinovDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanXursheda RaxmonovaDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanSherzod AliboyevDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanAbdubakir KushbokovDepartment of Smart Agrotechnologies, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanMunira KubayevaDepartment of Agroecosystem Management, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanIlhom RasulovDepartment of Crop Production Systems, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanJavakhir ErgashevDepartment of Crop Production Systems, Institute of Agrobiotechnologies and Food Security, Samarkand State University named after Sharof Rashidov, 15 University Boulevard, Samarkand 140104, UzbekistanIlhom NurillayevDepartment of Ecology, Green Transformation and Agrochemistry, Karshi State University, 17 Kuchabog Street, Karshi 180119, UzbekistanSurayyo ToshpulatovaDepartment of Ecology, Green Transformation and Agrochemistry, Karshi State University, 17 Kuchabog Street, Karshi 180119, Uzbekistan

2026en

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Polyethylene film mulching improves crop productivity in arid regions, but conventional full-surface use increases plastic input and post-season waste. This three-year field study evaluated localized strip mulching for drip-irrigated melon (Cucumis melo L.) in Samarkand, Uzbekistan. A randomized complete block design included three cultivars, bare soil, transparent film, and black film, with four blocks annually (2022–2024). Each 49.0 m2 plot had an individual water meter. Mixed-effects analysis indicated strong mulch effects on marketable yield, seasonal irrigation, and irrigation water productivity (IWP) (all p < 0.001). Strip mulch covered 42.9% of the field and required 118.3 kg ha−1 film, 57.1% below the calculated full-surface material requirement. Relative to bare soil, transparent and black film increased the mean marketable yield by 11.4% and 16.9% and reduced measured seasonal irrigation by 14.1% and 18.5%, respectively; plot-level mean IWP increased by 29.7% and 43.4%. Black-film mulch use efficiency reached 38.04–42.27 kg additional fruit kg−1 film. Ko‘kcha-588 with black film produced 35.0 t ha−1 with 3845.8 m3 ha−1 irrigation and 9.10 kg m−3 mean plot-level IWP. At the base price scenario, black film provided an incremental margin of 3.67 million UZS ha−1 before additional labor and end-of-life costs. The estimated 295 kg CO2-eq ha−1 reduction concerns virgin-LDPE resin production only. Yield and irrigation comparisons refer to bare soil; the full-surface comparison concerns calculated material input. Additional field monitoring showed stronger soil warming under transparent film and lower uncovered inter-row weed biomass with black film; these observations do not establish the independent mechanism of the yield response.

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DOI: 10.3390/technologies14110750

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