Initial sunflower development (Helianthus annus L.) subject to increasing doses of nitrogen and potassium
DOI:
https://doi.org/10.36560/131020201671Keywords:
Plant Height, Nitrogen, PotassiumAbstract
The present study was carried out in the greenhouse of the IFMT Campus Confresa-MT, from April 20 t0 June 06, 2018, the trial containing 10 treatments with 4 repetitions, 5 treatments submiited to increasing doses of nitrogen and 5 treatments submiited to increasing doses of potassium, For doses of N 0,20,40,60 and 80 kg ha-1 were and for doses of K, 0,10,20,30,40 k ha‑1 the fertilizations were made with. 7,14 and 21 days after the emergence of the plants. The experiment was installed in 2 Lt, 2 dcm³ pet bottles. The characteristics evaluated were stem diameter (DC), number of leaves (NF), plant height (AP), fresh shoot weight (MPFA), fresh root weight (MFR), it was observed that statistically all treatments had a significant difference at 1% probability, plus some hypotheses that can be described that in the evaluation number of leaves at increasing doses of potassium, the control had a higher average result. Light, standardized doses of ferti-irrigation etc. nevertheless an extremely importante result for the discussion and for carrying out experiments in the fututre, however the best answers were if obtained in the variables fresh weight of the aerial part (MFPA) and fresh mass of the root (MFR), in the future we may have more results, with the repetition of the experimente and see the difference between them
References
ABBADI, J.; GERENDÁS, J.; SATTELMACHER, B. Effects of nitrogen supply on growth, yield, and yield components of safflower and sunflower. Plant and Soil, v.306, p.167-180, 2008.
ATLANTICA SEMENTES. <http://www.atlanticasementes.com.br/>. Acesso em 20 de Julho de 2018.
BISCARO, Guilherme Augusto et al. Adubação nitrogenada em cobertura no girassol irrigado nas condições de Cassilândia-MS. Ciênc. agrotec. [online]. 2007, vol.32, n.5, pp.1366-1373. ISSN 1413-7054
CASTRO, C. de; BALLA, A.; CASTIGLIONI, V. B. R. Doses e métodos de aplicação de nitrogênio em girassol. Scientia Agrícola, Piracicaba, v. 56, n. 4, p. 827-833, 1999.
FAGUNDES, J.D.; SANTIAGO, G.; MELLO, A.M.; BELLÉ, R.A.; STRECK, N.A. Crescimento, desenvolvimento e retardamento da senescência foliar em girassol de vaso: fontes e doses. Ciência Rural, v.37, n.4, p.987-993, 2007.
FEITOSA, H. O.; FARIAS, G. C.; SILVA JUNIOR, R. J. C.; FERREIRA, F. J.; ANDRADE FILHO, F. L.; LACERDA, C. F. Influência da adubação borácica e potássica no desempenho do girassol. Comunicata Scientiae, v. 4, p. 302-307, 2013.
JESUS, Nascimento, Fábio et al. Mudas de girassol submetidas á doses de potássio, Enciclopédia Biosfera, Centro cientifico Conhecer – Goiânia, v.9 N.16; p. 1554. 2013
MALAVOLTA, E. manual de nutrição mineral de plantas. São Paulo: Editora Ceres, ESALQ, 2006.
MELTON, R.R.; DUFAULT, R.J. Tomato seedling growth, earliness, yield, and quality following pretransplant nutritional conditioning and low temperatures. Journal of American Society for Horticultural Science, v.116, p.421-425, 1991.
MOTA, J. H. et al. Efeito do cloreto de potássio via fertirrigação na produção de alface-americana em cultivo protegido. Ciência e Agrotecnologia, Lavras, v. 25, n. 3, p. 542-549, 2001.
LEVINE,D.M et al. Estatística: Teoria e aplicações. 5 ed. Rio de Janeiro: LTC, 2008.
OLIVEIRA, de F. de A.; OLIVEIRA, F. R. de A.; CAMPOS, de M. S.; OLIVEIRA, M. K. de T.; MEDEIROS, de J. F.; SILVA, O. da M. dos P. Interação entre salinidade e fontes de nitrogênio no desenvolvimento inicial da cultura do girassol. Revista Brasileira Ciências Agrárias. v.5, n.4, p.479-484, 2010.
Rossi, R. O. Girassol. Curitiba: Tecnoagro, 1998. 333p.007.
Published
How to Cite
Issue
Section
License
Copyright (c) 2020 Scientific Electronic Archives
This work is licensed under a Creative Commons Attribution 4.0 International License.
The journal reserves the right to make changes to the original rules, spelling and grammatical order, in order to keep the language of worship default, respecting, however, the style of the authors. The finals will be sent to authors. Articles published are the property of Scientific Electronic Archives magazine, becoming its total or partial reprint, subject to the express authorization of the direction of the journal. The original source of publication should be retained. The originals will not be returned to the authors. Opinions expressed by authors of articles are solely your responsibility.
This journal uses the License Creative Commons Atribuição 4.0 Internacional.
1.png)
