• Korean Journal of Soil Science and Fertilizer
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• v.31 no.4
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• pp.368-372
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• 1998

A field assay was conducted to study whether the by-product of Autoclaved Lightweight Concrete(ALC) could be used as a silicate fertilizer for Korean Zoysiagrass. ALC application rates (0, 2.0, 4.0, 6.0 and $8.0Mg\;ha^{-1}$) were investigated for their effects on growth status, mineral nutrient concentrations, yield of fresh and dry matter of lawn grass and soil properties after experiments. The number of stolon and length of stolon at 180 day after Zoysiagrass transplanting were increased in the treatemnt of $2.0{\sim}6.0Mg\;ha^{-1}$ of ALC application, but those of $8.0Mg\;ha^{-1}$ of ALC plot were deceased with excess of ALC. The fresh weight and dry matter at harvesting time of lawn grass treated with $6.0Mg\;ha^{-1}$ of ALC was heavier than those of other ALC plots. There were statistically significant between the number of stolon and length of stolon remarkably. Mineral nutrient contents such as Si and Ca in Zoysiagrass were increased by higher ALC application, while T-N, available P and K were no difference with application lavel of ALC. Soil pH and Si contents in soil after experiment were increased by ALC application remarkably.