PROBLEM TO BE SOLVED: To provide a spraying method for construction by which spraying can be carried out for a seedling particularly requiring delicate handling and multiplying by vegetative reproduction with a smaller number of operation steps and a higher plant cover ratio as compared with those of the conventional similar method for construction.SOLUTION: The plant seedling multiplied by the vegetative reproduction is raised in a nursery bed. A raised mat-like seedling, together with the nursery bed, is cut into several cm square to form a nursery bed piece. The resultant nursery bed piece is mixed with soil dressing, water, a water holding material etc., in a volume of about &ge10 times of the nursery bed piece 2 in the interior of a mixer to form a slurry-like mixture. The resultant mixture is sprayed on the objective position with an apparatus for spraying the soil dressing to carry out the spraying.COPYRIGHT: (C)2011,JPO&INPIT【課題】特に扱いが微妙な、栄養植生で増殖する苗を、従来の類似工法に比較して作業工程が少なく、植被率の高い、吹き付け工法を提供する。【解決手段】栄養生殖で増殖する植物苗を、苗床で育成する。育成したマット状の苗を苗床とともに数センチ四方に切断して苗床片を形成する。この苗床片を混合機の内部で苗床片2の約10倍以上の容量の客土、水、保水材などと混合しスラリー状の混合体を形成する。これを客土吹き付け装置によって対象位置に吹き付けて行う。【選択図】図1