Available in truck and trailer models, the Knight ProSpread commercial-series box spreader from Kuhn North America can be used to spread compost biosolids and lime and many other solid and semisolid materials. It has all-welded construction, a friction-resistant poly floor and a split-apron drive. It has three discharge options — horizontal beaters, VertiSpread vertical beaters and an AccuSpread spinner discharge. The beater modules can be combined with a scale system to monitor the application process and take advantage of the material’s nutrient value. 608/897-2131; www.kuhnnorthamerica.com.