Farming plays an important role in the survival of human civilization. As our forefathers have taught us, agriculture has a long-evolutionary history that one can learn from. The Internet of Things (IoT) is used to improve crop yields. IoT enables internet-connected equipment with sensing devices to exchange information with others. The sensor in the land can collect data remotely and send it to the producer in timely manner. Among the devices that can be wirelessly managed and maintained in live time are pumps, garages, vehicles, weather forecasting, and PC. This paper provides a detailed study about the various methods such as drip, greenhouse, IoT based monitoring system, wireless network, smart and precision agriculture. Remote sensing method provides high accuracy and better yield than the existing methods. Thus, agriculture system provides greater yield and the farming lands are protected with the help of technology.