Archive | 2021
Dinâmica Populacional de Fitonematoides em Sistema Integrado de Produção de Milho
Abstract
In Brazil, the Integrated Agricultural Production Systems, both of the search of more sustainable alternatives of grain production and in the degraded areas recovery. However, they have little information about some pests, diseases and nematodes dynamics soil systems, which can lead to productivity losses. This work aimed to verify the appropriate adjustments during the integrated production system. The experiment was carried out in Iporá – GO, evaluating three treatments (corn planting times) during 14 months of evaluation. The population and dry matter production of the three components were measured. Weather data were also collected. The treatments were analyzed by mixed models and the comparison with other areas was performed by analysis of variance. When any effect was identified, Tukey test was applied for means comparison. To assess the relationship between the variables, correlation, regression and principal component – Principal Components Analysis (PCA) analyzes were performed. It was verified that the population increase of Pratylenchus and Criconemella Plant-parasitic nematodes are related to the year time and soil moisture, highlighting the maximum temperature. The plant-parasitic nematodes population did not differ between the area in which the integrated agricultural production system (SIPA) was implanted in relation to the degrading pasture area and native forest (Cerrado). The SIPA implantation did not affect the population of plantparasitic nematodes and they did not affect the corn production.