Journal of E - Technology Cristina Balaceanu, George Suciu1, Ioana Marcu 10 1 2019 https://doi.org/10.6025/jet/2019/10/1/1-9 http://www.dline.info/jet/fulltext/v10n1/jetv10n1_1.pdf The Internet of Things (IoT) is quite used in Smart Agriculture because of the use of IoT sensors that can provide information related to the agricultural fields on which the crops are growing. This paper aims to illustrate the results achieved using evolutionary technologies, i.e., IoT in precision agriculture to monitor environmental factors and to improve the efficiency of efficient crops. Based on significant characteristics of cloud computing and key techniques of IoT technology, Libelium-based IoT platform can help building up an enormous database comprising numerous agricultural production parameters. The main feature of this paper consists in outlining the monitoring of temperature, humidity of soil, relative humidity, atmospheric pressure and solar radiation in the agricultural field through sensors using the Libelium station. By means of data transmission protocol, vital information will reach farmers using Wi-Fi technology, information based on which they can decide if their crops need irrigation or not.