| 摘要 |
PURPOSE:To obtain a soil improving agent capable of improving the soil into an agricultural land or potted plants into soil for readily growing agricultural products, maintaining and improving the ecosystem of the soil, growing the agricultural products and potted plants strong and providing the plants resistant to disease injuries. CONSTITUTION:This soil improving agent is obtained by mixing a dried leaf of Aspalathus linearis or an extract solution separated from the Aspalathus linearis with charcoal produced from a shell of a pine nut. |
