Properly applied waste can provide plant nutrients and act as a soil conditioner. Land application of waste is often a very affordable waste disposal alternative for the waste generator. The objectives in land application are to maximize nutrient use while minimizing pollution hazards.
Surface spreading and subsurface injection are the two most commonly used land application methods.
Check soil moisture before applying liquid wastes and adjust the application rate to avoid runoff or contaminated tile flow. Calibrate spreader to obtain the desired application rate. The box must be watertight for road transport. Spreaders are equipped with paddles, flails, or augers to spread the waste evenly over the land area. Feed aprons, moving front-end gates, augers or conveyors are used to move the waste to the spreader.