Influência do gesso na produtividade da cultura do milho (Zea mays) no cerrado

Abstract

Corn cultivation plays an important role in the Brazilian economic sector, especially in the Brazilian Cerrado region. Cerrado has soils with low nutrient levels, high acidity, and high aluminum toxicity, and the application of gypsum allows for improvement in the development of the plant root system, increasing water use efficiency and nutrient availability in the soil. In this context, the objective of this study was to conduct a literature review on the use of gypsum and its impact on corn (Zea mays L.) productivity in Cerrado soils. This literature review was divided into two phases, with the first phase consisting of selecting databases, defining search strategies, collecting data, analytical reading, and selecting related studies. The second phase consisted of synthesizing the main data, creating figures, tables, and finally, drafting this study with the results obtained. It was found that agricultural gypsum use leads to greater root development due to the increased calcium concentration in acidic soils under direct planting systems. The main effects are perceived during dry spells during the crop cycle in rainfed agriculture. The main nutrients leached by gypsum application are Mg followed by K, the latter in smaller proportions. It is concluded that gypsum application is an important option to increase crop productivity. However, this use must be done following criteria to avoid excessive nutrient leaching