We made this model to help the farmers when they use chemical fertilisers in their fields. Chemicals are health-hazardous. So robotic spray of fertilisers will save farmers health as well as their time.To make this model we used 4 geared motors, a pipe, a pump to push the water, a tank, a servo motor to change the direction of the spray and connected these things to the bi-box. The bi-box can be controlled using a bluetooth remote in our phone. When we use the remote , we can make the model move forward, backwards, left and right. We can also change the direction of the spray.