Sustainable resource management of polyhalite for agricultural and environmental balance
Author(s): Selin Aydin, Mehmet Kaya, Elif Demir and Caner Yılmaz
Abstract: The sustainable management of mineral resources for agriculture is essential to address the dual challenge of increasing food production and preserving environmental balance. This study evaluates the role of polyhalite, a naturally occurring multi-nutrient fertilizer containing potassium, calcium, magnesium, and sulfur, in promoting agricultural productivity and ecological sustainability. Field experiments conducted on maize, wheat, and soybean under varied agro-climatic conditions revealed that polyhalite significantly improved grain and biomass yields compared to conventional muriate of potash. Enhanced uptake of potassium, calcium, magnesium, and sulfur was observed, alongside increased residual soil fertility, demonstrating its potential for long-term soil health improvement. Importantly, polyhalite treatments reduced soil electrical conductivity relative to chloride-based fertilizers, indicating lower salinity risks, while also maintaining stable pH values across cropping systems. Environmental monitoring through lysimeters showed reduced nitrate leaching under polyhalite use, suggesting improved nitrogen-use efficiency, although a modest rise in sulfate levels was detected, remaining within acceptable agronomic thresholds. Statistical analysis using permutation-based ANOVA confirmed the significance of treatment effects across all crops, with 75
-100% polyhalite applications yielding the most pronounced benefits. The results collectively affirm the hypothesis that polyhalite, when managed sustainably, can enhance crop performance while safeguarding soil and environmental health. The study recommends integrating polyhalite into site-specific nutrient management strategies, supported by farmer awareness programs, policy interventions, and expanded field demonstrations. By positioning polyhalite as both a nutrient source and a strategic sustainability tool, this research underscores its potential to contribute meaningfully to agricultural resilience, resource conservation, and sustainable intensification.
Pages: 119-124 | Views: 48 | Downloads: 14Download Full Article: Click Here
How to cite this article:
Selin Aydin, Mehmet Kaya, Elif Demir, Caner Yılmaz. Sustainable resource management of polyhalite for agricultural and environmental balance. Int J Geogr Geol Environ 2025;7(9):119-124.
