SURFACE-LAYER STRUCTURE OF SOIL HAVING WEED EMERGENCE INHIBITOR ACTIVITY AND METHOD OF WEED EMERGENCE INHIBITION

摘要

A surface-layer structure of soil having weed emergence inhibitor activities, provided with a germination inhibitor sheet (2) laid on the surface of a target ground (1) and resistant to the penetration by plant buds and a surface layer (3) formed on the sheet (2) by the sedimention of water-repellent soil material prepared by coating particles of the raw material with silicone. Typically, the germination inhibitor sheet (2) is one made of nonwoven fabric and has the light-barrier property and water and air permeabilities, in addition to the resistance to the penetration by plant buds.