The authors of this work had as a purpose to contribute to the students´ interdisciplinary formation of the Natural Sciences pedagogical careers from Agricultural Fundaments subject at the University of Pedagogical Sciences of Pinar del Río . Due to this, it offer s a packet of didactical procedures for elaborating interdisciplinary integrative tasks and its application in the teaching-learning process of this subject, as a way to establish interdi sciplinary relations with other subjects of the curriculum. This way, it contributes to develop cross- interdisciplinary relations in these careers.