IoT, or the Internet of Things, refers to the network of physical objects, devices, vehicles, buildings, and other items that are embedded with sensors, software, and other technologies to collect and exchange data over the internet. These objects can communicate and interact with each other and with central systems, enabling them to gather and share information without requiring direct human involvement. We are focusing on the use of IoT Techniques for crop protection and crop productivity increase. As the world population is growing on, we should focus on use of IoT in field of agriculture. So that growing population food demand can be fulfilled. In the existing system, animals are raiding the crop field in a large scale. They destroy the crop field. Farmers are unable to guard the crop field day and night. They are using various fencing techniques to repel the animals away from the crop field. We are proposing a system that can detect the animal raiding by using ultrasonic sensor and LASER sensor to detect the invasion. And also increase the crop productivity by using soil nutrient sensors to properly monitor the soil nutrient level.