This book brings important information about applied agroclimatology in Brazil, showing the importance of decision-making of the farmer to avoid crops failures or crop prejudices. For that, were used more than 200 references come from scientific papers published around the world, in relevant journals of agriculture and agroclimatology. Thus, all this information can be trust and readable for all publics, not only for academics or researchers. In addition, this Manual has several contents for Agronomy, such as conservationist agriculture, crop genetic breeding, medicinal plants among other special topics. Considering all contents, there are more than 1000 references from scientific papers, thus, this Book has established according to the scientific community and attends for all requirements and demands and can be used for famers, students, graduate students and even professionals in agronomy and similar areas.