Galvanised Spring Tine Harrow With Air SeederNEW Spring tine harrows are available with Doyle air seeders fitted for sowing small seeds and grass seeds, 3m or 6m machines can be fitted with a range of seeders from basic machines to high output multifunction control machines with features such as variable seed rate control which adjusts with the forward speed of the tractor and hectare meter. High powered electric fans for higher seed rate and output. standard feature is a walkway and steps to