After 20 years, a decreasing trend of available potassium concentration was observed in the soil at the AL site, because potassium easily leaches out of the upper soil layer in sandy and loamy soils in temperate climate zones.
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Perennial Grasses on Stony Sandy Loam <i>Arenosol</i>: Summary of Results of Long-Term Experiment in Northern Europe Region (1995-2024).
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