hydroseeding
n.— «The pale, sandy earth is barren, except for patches of unnaturally bright green that mark where a mixture of green dye, fertilizer and grass seed has been sprayed in a process called hydroseeding. The garish dye shows workers where they’ve spread the seed.» —“Grow bumper crop of clean water” by Sally Swartz Palm Beach Post (Florida) July 12, 2006. (source: Double-Tongued Dictionary)