Crotalária no cerrado piauiense

Abstract

Crotalaria is a legume with the potential to improve the fertility of degraded soils in the Cerrado, contributing to biological nitrogen fixation, nematode control, and increased organic matter. In addition, its use can reduce dependence on chemical inputs, promoting more efficient and economical agricultural practices. The objective of this study was to conduct a literature review on the use of crotalaria, addressing its characteristics, applications in agriculture, and potential for sustainable soil management and pest control. Crotalaria is a promising alternative for agricultural sustainability. In addition, its use as green manure contributes to reducing the use of chemical inputs, protecting the soil against erosion, increasing porosity, and promoting the development of subsequent crops. The study also highlights the positive impact of crotalaria on nutrient cycling and efficiency in fertilizer use, aspects that are crucial for optimizing agricultural productivity. The research is justified by the need to promote more sustainable agricultural practices and identify solutions adapted to the conditions of the Cerrado, such as the use of specific species of crotalaria in intercropping or crop rotation systems. Using a theoretical approach, the study gathers information from scientific articles, books and relevant publications, analyzing recent advances on the subject. It is concluded that the adoption of crotalaria as a cover crop is essential for resilient management, contributing to increased productivity, reduced costs and environmental preservation in the context of the Brazilian Cerrado