Resumo

SANCHEZ-ARELLANO, José et al. Application of superabsorbent polymers in chayote under rainfed conditions. Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.8, e3900.  Epub 16-Fev-2026. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i8.3900.

Superabsorbent polymers (SAPs) provide an innovative alternative for soil moisture retention, improving water use efficiency and crop productivity. The study aimed to evaluate the application of SAPs in chayote cultivation under rainfed conditions, using four doses (0, 100, 150, 200 g plant-1). The research was carried out on an agricultural plot in Chocamán, Veracruz, from October 2023 to April 2024. The experimental design employed a generalized randomized block design with two blocks, four treatments, and two replications per block. The variables evaluated were soil moisture content, growth, leaf area, and yield. The SAP treatments maintained higher moisture levels, with a maximum increase of 7.8%, particularly during periods of higher rainfall. The treatment with the highest dose (T4 200 g plant-1) presented the highest vertical growth and yield (97.3 kg plant-1). No significant differences in leaf area were found between some treatments. The application of SAPs improved soil moisture retention, favoring growth and yield. Their use is a viable strategy to improve water availability and chayote yield under rainfed conditions; nevertheless, the optimal dose could vary depending on soil properties and rainfall distribution.

Palavras-chave : hydrogel; moisture retention; Sechium edule.

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