Farmers' exposure to the effects of synthetic pesticides

In order to live man has constantly invented and improved his tools and techniques from the hoe to the tractor which allowed him to save his strength and increase the cultivated areas as the population grew.Agri promo 1980 underlines that humus compost manure green manures have allowed to improve the structure of the soil to make it fertile as long as possible. However the goal of this progress which is to increase yields is constantly encountering obstacles: plant diseases animals and insect pests that destroy a large part of the standing or stored crops.