African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6863

Full Length Research Paper

Top-dressing nitrogen management decision in potato using the “UFV-80” color chart and SPAD readings

Heder Braun
  • Heder Braun
  • University State of Maranhao, Brazil.
  • Google Scholar
Marcelo Ceon de Castro Silva
  • Marcelo Ceon de Castro Silva
  • Federal University of Para, Brazil.
  • Google Scholar
Paulo Cezar Rezende Fontes
  • Paulo Cezar Rezende Fontes
  • Federal University of Vicosa, Brazil.
  • Google Scholar
Fabricio Silva Coelho
  • Fabricio Silva Coelho
  • Federal University of Vicosa, Brazil.
  • Google Scholar
Paulo Roberto Cecon
  • Paulo Roberto Cecon
  • Federal University of Vicosa, Brazil.
  • Google Scholar


  •  Received: 12 April 2015
  •  Accepted: 12 August 2015
  •  Published: 27 August 2015

References

Agrianual (2009). Anuário da Agricultura Brasileira. 14ª edição. FNP Consultoria e Agroinformativos, P. 497.
 
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Beverly RB, Hallmark WB (1992). Prescient diagnostic analysis: a proposed new approach to evaluating plant nutrient diagnostic methods. Commun. Soil Sci. Plan. 23:2633-2640.
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Busato C, Fontes PCR, Braun H, Cecon PR (2010). Seasonal variation and threshold values for chlorophyll meter readings on leaves of potato cultivars. J. Plant Nutr. 33:2148-2156.
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Fontes PCR, Araujo C (2006). Use of a chlorophyll meter and plant visual aspect for nitrogen management in tomato fertigation. J. Appl. Hortic. 8:8-11.
 
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Fontes PCR, Pereira PRG, Conde RM (1997). Critical chlorophyll, total N, and NO3-N in leaves associated to maximum lettuce yield. J. Plant Nutr. 20:1061-1068.
Crossref
 
Fontes PCR, Silva MCC (2006). Proposição de uma tabela de cor (UFV 80- Monalisa) para avaliação do estado de nitrogênio da batateira. Batata Show. Ano 6, 16:16.
 
Gil PA, Fontes PCR, Cecon PR, Ferreira FA (2002). Índice SPAD para o diagnóstico do estado de nitrogênio e para o prognóstico da produtividade da batata. Hortic. Bras. 20:611-615.
Crossref
 
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Mu-oz-Huerta RF, Guevara-Gonzalez RG, Contreras-Medina LM, Torres-Pacheco I, Prado-Olivarez J, Ocampo-Velazquez RV (2013). A review of methods for sensing the nitrogen status in plants: advantages, disadvantages and recent advances. Sensors. 13:10823-10843.
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Nachimuthu G, Velu V, Malarvizhi P, Ramasamy S, Gurusamy L (2007). Standardisation of leaf colour chart based nitrogen management in direct wet seeded rice (Oryza sativa L.). J. Agron. 6:338-343.
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Parr MC, Ntonifor NN, Jackai LE (2014). Effect of planting dates on the population dynamicsof Cylas puncticollis and sweet potato storage roots damage in South Western Cameroon. J. Biol. Agric. Healthc. 4:41-48.
 
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Silva MCC, Fontes PCR, Miranda GV (2009). Índice SPAD e produção de batata, em duas épocas de plantio, em função de doses de nitrogênio. Hortic. Bras. 27:17-22.
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Sinfield JV, Fagerman D, Colic O (2010). Evaluation of sensing technologies for on-the-go detection of macro-nutrients in cultivated soils. Comput. Electron. Agric. 70:1-18.
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Tremblay N, Fallon E, Ziadi N (2011). Sensing of crop nitrogen status: Opportunities, tools, limitations, and supporting information requirements. Hortic. Technol. 21:274-281.
 
Wang Y, Wang D, Shi P, Omasa K (2014). Estimating rice chlorophyll content and leaf nitrogen concentration with a digital still color camera under natural light. Plant Methods. 10:1-11.
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Yang WH, Peng S, Huang J, Sanico AL, Buresh RJ, Witt C (2003). Using leaf color chart to estimate leaf nitrogen status of rice. Agron. J. 95:212-217.