The fertilizer spreaders (the trailed ones), are connected to the tractor through a 3 points system. The chassis is made of a rectangular tube of 80 x 100 mm and the fertilizer hooper from steel sheet. The distribution of fertilizers is achieved through two stainless steel discs, with three pallets each. The amount to be distributed is manually adjusted. The fertilizer spreaders have a hydraulic distributor connected to the tractor, which ensure quick closure or opening (from the tractor cab) of the flap for the distribution of fertilizer, thus avoiding unnecessary losses. The fertilizer spreaders are standard equipped with tarpaulin and cardan.