To solve the problems in the real- world the Wireless Sensors Network and the Internet of Things are nowadays commonly used to build decision support systems. Precision agriculture is one of the most important fields having an increasing need of decision support systems. This paper consists of a survey on wireless sensor network with different cloud-based IOT schemes on Precision agriculture. These methodologies are used to solve the agriculture related problems such as farming resources optimization, decision making support and land monitoring. The precision agriculture systems is based on the Internet of Things technology which is explained in hardware architecture, network architecture and software process control of the precision irrigation system in a detailed manner by using the basic principles of Internet and WSN technology. The sensors in feedback loop get activated by threshold value in the control devices. The needed data is been collected and it is relay to cloud-based back-end which is processed and analysed by the three-layer architecture. The analysed data can be sent back to the front-end nodes which are based on Feedback actions.