The present invention relates to a timed-release-type granular agrochemical composition formed by coating primary granules that comprise a mixed composition containing an agrochemical active ingredient, a swelling substance, a surfactant, and, depending on the circumstances, the other formulants the primary granules being coated with a mixed composition containing a binder, a hydrophobic substance, a carrier, and, depending on the circumstances, the other formulants.本發明係關於定時釋放型粒狀農化組成物,其係藉由將包含含有農化活性成分、膨脹物質、表面活化劑,及,根據情況,其他配方組份之摻合組成物之初級顆粒予以塗覆而形成;該初級顆粒係用含有黏合劑、疏水性物質、載體,及,根據情況,其他配方組份之摻合組成物予以塗覆。
