If you turn the spreader upside down there is a chart inside on the actual spreader itself. You can also view the calibration chart by clicking the link below.
We will be happy to email you a new calibration chart for your PlantMates Broadcast Shoulder Spreader. You are also welcome to contact PlantMates directly at 713-910-4420 if you need further assistance.
Yes, the PlantMates Broadcast Shoulder Spreader can be used to spread lightweight fertilizer. The spreader comes with an adjustable shoulder strap for easy carrying.