ABSTRACT
The hydroseeding is a technology for slope protection using compositions of seeds and enriching antierosion agents. Mixture compositions, amounts of deposited substances and a number of sprays are suited to the purpose of seeded area and biotopic conditions. It is the last labour consuming slope protection method, specially in reclamation processes performed outside agricultural seasons particularly on the southern slopes. The deep enriching of soil and mulching are necessary, as well as bituminous or latex protective covers either.
The technology proposed by the Institute for Building, Mechanisation & Electrification of Agriculture (IBMER), Warsaw, Poland, applies sludge taken from biological treatment plants, beeing a germ carrier of seeding mixture and also beeing a fertilising and antierosion agent. Properly seasoned, pasteurised and then homogenised sewage sludge is a perfect colloidal solution easily driven into treated surfaces.
Up to the end of the year 1997 there were reclamated in Poland more than 2000 ha of slopes and waste land (covered with green plant garment) by means of the described method. The results were very satisfactory.
