Soybean yield under potassium fertilization in a protected environment / Produtividade da soja sob adubação potássica em ambiente protegido

Armando Lopes de Brito Filho, Klara Cunha de Meneses, Kamilla Cunha de Meneses, Renata Santos Coutinho, Maryzélia Furtado de Farias, Marcelo Rodrigues Barbosa Júnior, Rennato Oliveira da Silva

Abstract


Most of the areas explored in Brazil with soybean cultivation are in tropical regions, where soil formations with a high degree of weathering and low levels of nutrients predominate. Therefore, the objective was to verify soybean yield under different doses of potassium in a dystrophic Yellow Latosol soil. The experiment was carried out in a greenhouse at the Center for Agricultural and Environmental Sciences, at the Federal University of Maranhão, from March to June 2017. The design was completely randomized with five treatments and five replications, totaling 25 plots. The treatments were 0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 200 kg ha-1, and 300 kg ha-1 of K2O, using potassium chloride as a source. The soybean cultivar used was FT4183IPRO, and the results obtained were submitted to the Shapiro-Wilk test to verify normality, the Levene test to verify homogeneity, and the analysis of variance by the F test, when significant the test was used. Tukey, at 5% probability for comparison of means. Potassium fertilization only had a significant effect on MSPA, in which there was also a high correlation between this variable and the grain quantity variable and yield with grain quantity and grain weight. Since the low productivity was due to the poor dispersion of the fertilizer in the pots, causing salinity to the environment.

Keywords


Mineral fertilizer; Greenhouse, Glycine Max

References


Barbosa, J. C.; Maldonado, J. AGROESTAT, W. System for statistical analysis of agronomic trials . Jaboticabal: Gráfica Multipress Ltda, 2015.

Batistella Filho, F.. Phosphorus and potassium fertilization for soybean seed production and quality . 2012.

Catuchi, T. A. et al. Physiological responses of soybean cultivars to potassium fertilization under different water regimes. Pesquisa agropecuária brasileira, v. 47, n. 4, p. 519-527, 2012.

CONAB. Companhia Nacional de Abastecimento. Monitoring of the Brazilian grain harvest . Acomp. safra bras. grãos, v. 7 Safra 2019/20 - Quinto levantamento, Brasília, p. 1-112 Fevereiro 2020.

DANCEY, Christine & REIDY, John. (2006), Statistics Without Mathematics for Psychology: Using SPSS for Windows. Porto Alegre, Artmed.

Desai, B.B. et al. Seeds handbook: biology, production, processing and storage. 2.ed. New York, Marcel Dekker, 2004. 787p.

DOS SANTOS, B. B. et al. Potassium application in chamomile production (Chamomilla recutita). Scientia agraria, v. 16, n. 3, p. 22-32, 2015.

Mateus, G.P. et al. Sources and contact periods of fertilizers and germination of Brachiaria brizantha seeds. Revista Brasileira de Ciência do Solo, v.31, n.1, p.177-183, 2007. Disponível em: . Acesso em: 15 de out. 2012. doi: .

Pádua, G.P. de; Zito, R.K.; Arantes, N.E.; França Neto, J. B. Influence of seed size on the physiological quality and soybean yield . Revista Brasileira de Sementes, v.32, p.9 16, 2010. DOI: 10.1590/ S0101 31222010000300001.

Prado, R. de M. Potássio. In: Prado, R. de M. Plant nutrition. São Paulo: UNESP, 2008. p.161 181

Raij, B. V. Soil fertility and fertilization. Piracicaba: Ceres, 1991. 343 p.

Sedyama, T. (2016) – Soybean yield. Ed. 1, Mecenas, Londrina. 310 p.

Silva, A. F.; LAZARINI, E. Doses and times of potassium application in soybean crop in succession to cover crops. Semina-ciencias Agrarias, p. 179-192, 2014.

Tavares, L. C. et al. Potassium via soybean seed coating: effects on physiological quality and yield. Ciência Rural, v. 43, n. 7, p. 1196-1202, 2013.

Taiz, L.; Zeiger, E. Plant physiology. 3.ed. Porto Alegre: Artmed, 2004. 719p.

Veiga, A. D et al. Influence of potassium and liming on chemical composition, physiological quality and enzymatic activity of soybean seeds. Ciência e Agrotecnologia, v.34, p.953 960, 2010. DOI: 10.1590/ S1413 70542010000400022.

Zambiazzi, E. V. et al. Agronomic performance and sanitary quality of soybean seeds in response to potassium fertilization . Revista de Ciências Agrárias, v. 40, n. 3, p. 543-553, 2017.




DOI: https://doi.org/10.34117/bjdv6n6-211

Refbacks

  • There are currently no refbacks.