Since ancient times the productive systems related to the agriculture line have been increasing the use of pesticides due to the need to control and minimize the presence of pests in crops. However, during the present degree work the main objective is to expose the fundamental aspects of chemical risk that may arise during the preparation and planting system of Zea mays corn plantations in the community of Lidice district of Capira, which can be cause damage to the ecosystem, the people who handle it and if its handling is inadequate to the plantations and final product affecting food security. Because the effects of are direct on plants; these can present alterations or chemical damages which are reflected in losses for both the producer and the consumer population of them. It is necessary to establish with strict compliance control application of good agricultural practices to reduce soil contamination. In the study interesting topics were raised such as the historical background of corn, and production, the classification of pesticides taking into account the organochlorines, (which contain in their molecule atoms of C, H, Cl and in some cases O and the organophosphorus that are derived from phosphoric acid the most toxic, and less friendly to the environment, the risk and danger involved in handling affecting not only to the worker if not also to the environment.