Correlations between soil attributes and the occurrence of nematodes and grain yield in an off-season maize crop in Mato Grosso do Sul

Authors

  • Valquiria Krolikowski Universidade Estadual de Mato Grosso do Sul
  • Gessi Ceccon Embrapa Agropecuária Oeste
  • Katiane Secco Castro Universidade Federal de Mato Grosso do Sul
  • Paulo Eduardo Teodoro Universidade Federal de Mato Grosso do Sul

Keywords:

Soil microbiology., Soil organic matter., Path analysis.

Abstract

Systems of soil cultivation and use directly influence crop yield by interfering with the soil chemical, physical, and biological attributes. This study aimed to evaluate the correlation between maize grain yield, soil chemical and biological attributes, and the occurrence of nematodes in maize crops grown in the off-season, in the state of Mato Grosso do Sul. Soil samples from 21 off-season maize crops were collected in 2015. The samples were used to identify and quantify nematodes, determine biomass carbon and microbial activity, and for chemical analysis. The attributes were clustered based on the variables evaluated using the mean Euclidean distance and Ward's clustering method.  The interrelationship between the variables was analyzed by correlations, and its unfolding in the cause and effect investigations was evaluated by the path analysis. Organic matter and microbial biomass carbon positively influence grain yield. Magnesium negatively influences the population of Pratylenchulus spp. in maize crops. The potential acidity and organic matter are related to the presence of Rotylenchulus spp.

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Published

2020-04-22

How to Cite

KROLIKOWSKI, V., CECCON, G., CASTRO, K.S. and TEODORO, P.E., 2020. Correlations between soil attributes and the occurrence of nematodes and grain yield in an off-season maize crop in Mato Grosso do Sul. Bioscience Journal [online], vol. 36, no. 6, pp. 1845–1857. [Accessed7 December 2022]. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/48143.

Issue

Section

Agricultural Sciences