Evaluating the Synergistic Impact of Water Practices, Gypsum, and Silicon on Potato Productivity in Salt-Affected Soils in Ganges Tidal Floodplain (AEZ-13)

Hasan, Ahmed Khairul; Islam, Nadia; Islam, Md. Shafiqul; Akter, Fahmida; Mia, Md. Liton; Ali, Md. Omar; Hossain, Muhammed Ali; Palash, Md. Salauddin

doi:10.21608/agro.2025.391556.1713

Evaluating the Synergistic Impact of Water Practices, Gypsum, and Silicon on Potato Productivity in Salt-Affected Soils in Ganges Tidal Floodplain (AEZ-13)

Document Type : Original Article

Authors

¹ Department of Agronomy, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh-2202

² Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

³ Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

⁴ Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

⁵ Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

⁶ Department of Department of Agribusiness and Marketing, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh.

10.21608/agro.2025.391556.1713

Abstract

In Bangladesh, the soil salinity is the main factor reducing the overall yield of potatoes grown in the southwestern area. We evaluated the effect of water management practices and gypsum combined with silicon on improving potato yield under saline conditions. The experiment was carried out at two locations viz. Sadar and Kaliganj upazila of Satkhira district, Bangladesh. Most of the yield contributing characters and yield were significantly influenced with the application of mulching + recommended irrigation + 150 kg ha-1 gypsum + 150 kg ha-1 silicon (M3G1S1) treatment in both locations. In Sadar and Kaliganj upazila, the M3G1S1 treatment yielded the maximum tuber yield (22.36 t ha-1 and 21.70 t ha-1) and the lowest proline content (1.27 mg g-1 and 1.99 mg g-1 fresh weight), respectively. Conversely, in Sadar upazila, highest Na+: K+ ratio (1.25) and proline content (5.22 mg g-1 fresh weight) were observed in M0G0S0 (no mulching + no gypsum + no silicon) treatment. In Kaliganj upazila, the same treatment (M0G0S0) resulted in the highest Na+: K+ ratio (1.42) and proline content (5.75 mg g-1 fresh weight). In case of principal component analysis (PCA), the first two principal components (PCs) accounted 78.5 % of the total variation among the parameters in Sadar upazila, while in Kaliganj upazila, they explained 74.1 % of the total variation So, it can be concluded that mulching with irrigation and gypsum with silicon fertilization is an effective way in enhancing potato productivity in saline-affected area.

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