The Wireless Sensors Network (WSN) in these days is broadly used to build Decision Support System (DSS) to beat numerous issues in the present reality. A standout amongst the most intriguing fields that includes WSN is Agriculture. Because of progression in innovations, sensors are getting to be distinctly required in practically every field of life. Agribusiness is one of such spaces where sensors and their systems are effectively used to get various advantages. Choice of sensors and their effective usage to take care of agricultural issues has been a challenging task. The aim of this paper is to audit the need of wireless sensors in Agriculture. The technologies used in agriculture and their applications in various parts of agribusiness and to report the difficulties of WSN in the field of agriculture.