PROBLEM TO BE SOLVED: To provide a method for producing artificial humic soil regarding an artificial humic soil-mixed type greening construction method, enabling restoration of wasteland by spraying greening material stable in the long and medium terms over an objective land to be greened, and promoting humus by spraying the humic soil on the surface of the objective land using a spray machine.SOLUTION: The method for producing artificial humic soil includes: infiltrating an organic material such as immature bark compost, sawdust, straw, chaff or dehydrated cake which contains about 70 wt.% of organic substances and whose humus does not proceed, with an extremely acidic solution having a mol concentration of 1.0-18.0 molL-1 such as sulfuric acid solution, hydrochloride acid, or acetic acid for &ge5 hours, or with smoked powdery charcoal or coarse-grained smoked charcoal for about 100 hours. The bark compost as the immature organic material includes, for example, having a C/N ratio of &le35, pH (H2O) 5.5-7.5, and an electric conductivity of &le0.9 mS/cm.COPYRIGHT: (C)2010,JPO&INPIT【目的】本発明は,人工腐植土混合型緑化工法に関し、中長期的に安定な緑化資材を緑化対象地に吹き付け荒廃地を復元することを可能とし,さらに,その腐植土を吹付機を用いて目的の対象表面に吹き付けて腐植を促進させるための人工腐植土を提供するものである。【解決手段】人工腐植土の製造方法において、有機物が70%程度の含有量を有し,腐植化が進行していない未熟なバーク堆肥,おがくず,稲わら,もみ殻,脱水ケーキ等の有機質資材をモル濃度1.0~18.0molL-1の硫酸溶液,塩酸,酢酸等の極強酸性溶液に5時間以上浸透させ、又は燻製した粉状又は粗粒状の燻製炭で約100時間ほど浸透するようにし,且つ未熟な有機質資材とするバーク堆肥にあっては、C/N比が35以下,pH(H2O)が5.5~7.5,電気伝導度が0.9mS/cm以下の値のものを利活用するようにした人工腐植土の製造方法。た構成。【選択図】 図1
