APPLICATION OF DIFERENTE FORMS OF ORGANIC FERTILIZER IN THE SOIL FOR CROP YELD Zea mays

Abstract

ABSTRACT: Brazilian pig farms began to be intensively developed in the 1970s and have been expanding in Santa Catarina, increasing considerably the number of animals per area, the state has approximately nine million head, being the largest national producer, responsible For 22% of production. The model of pig breeding in the state generates expressive volume of liquid waste from contaminant potential sources and contamination of the soil. In view of this context, the objective of this work was to evaluate the efficiency of the swine liquid waste (DLS) as fertilizer for maize cultivation in different forms of soil application, with and without NPK under no - tillage. This work was carried out during the 2015/2016 harvest, in an experiment conducted in a humic Cambisol in the region of Planalto Sul Catarinense, the treatments comprised the two forms of application: superficial (S) and incorporated (I); Two types of fertilizers: mineral fertilizer (NPK), swine net waste (DLS), and absence of fertilization, including the control plot. The experimental design was a randomized block design, with four replications. The grain yield was influenced by the treatments, which increased through the application of the mineral fertilizer or swine net waste in comparison to the absence of fertilization, however there was no significant difference between the applied methods.KEYWORDS: Corn, Fertilization, Swine.