Correlation between nutrient content and productivity in irrigated forages

Authors

  • Carla Deisiane de Oliveira Costa Universidade Estadual de Mato Grosso do Sul
  • Adriano da Silva Lopes Universidade Estadual de Mato Grosso do Sul
  • Marcos Jefferson Kraeski Universidade Estadual de Mato Grosso do Sul
  • Adriano de França Universidade Estadual de Mato Grosso do Sul
  • Alisson Rodrigo Almeida Margatto Universidade Estadual de Mato Grosso do Sul
  • Eder Duarte Fanaya Júnior Universidade de São Paulo

DOI:

https://doi.org/10.14393/BJ-v35n3a2019-39487

Keywords:

Irrigated pasture., Central pivot., Forage nutrition.

Abstract

Irregular rainfall can restrict crop development, so irrigation of pastures serves as a strategy to intensify grass-fed animal production systems. Due to the direct relationship between the availability of soil water and nutrients, the objective was to evaluate the nutrient content in forages irrigated by a central pivot system. This work was carried out in the experimental area of irrigated agriculture at the State University of Mato Grosso do Sul, in Aquidauana-MS, Brazil. The experiment was setup in a completely randomized design, with five replications, in subdivided plots. The treatments of the plots were irrigated and non-irrigated, and the treatments of the subplots were the forages Urochloa brizantha cv. Xaraes, Pennisetum purpureum cv. Napier, Panicum maximum cv. Mombasa and Urochloa ruziziensis cv. Ruziziensis. Foliar concentrations of the nutrients Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), Sulfur (S), Boron (B), Copper (Cu), Iron (Fe), Manganese (Mn) and Zinc (Zn) were evaluated. Statistical analyses performed included analysis of variance, Tukey test at p <0.05 and linear correlation matrix at p <0.05 and p <0.01 between nutrients and productivity. Irrigation results in higher levels of the macronutrients P, K and Mg, and Fe and Mn micronutrients in forages. The nutrients that correlated with productivity were P and Fe, which both presented negative correlation. The nutrients correlated better with each other than with forage productivity.

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Author Biography

Carla Deisiane de Oliveira Costa, Universidade Estadual de Mato Grosso do Sul

Pós-Doutoranda e Professora Colaboradora da Universidade Estadual de Mato Grosso do Sul

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Published

2019-06-11

How to Cite

DE OLIVEIRA COSTA, C.D., DA SILVA LOPES, A., KRAESKI, M.J., DE FRANÇA, A., ALMEIDA MARGATTO, A.R. and DUARTE FANAYA JÚNIOR, E., 2019. Correlation between nutrient content and productivity in irrigated forages. Bioscience Journal [online], vol. 35, no. 3, pp. 679–690. [Accessed26 November 2022]. DOI 10.14393/BJ-v35n3a2019-39487. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/39487.

Issue

Section

Agricultural Sciences