過か燐りん酸さん肥ひ料りょうかりんさんひりょうMeanings1nounsuperphosphate fertilizerTechnical agricultural term for a phosphate fertilizer produced by treating rock phosphate with sulfuric acid.過か燐りん酸さん肥ひ料りょうはリン酸さんを多おおく含ふくむため、根ねの発