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Nitrogen and potassium concentrations in the nutrients solution for melon plants growing in coconut fiber without drainage
  • Instituto Federal de Educacao, Ciência e Tecnologia Sul de Minas Gerais (IFSULD EMINAS)
  • Universidade Estadual Paulista (UNESP)
With the objective of evaluating the effects of N and K concentrations for melon plants, an experiment was carried out from July 1, 2011 to January 3, 2012 in Muzambinho city, Minas Gerais State, Brazil. The Bonus no. 2 was cultivated at the spacing of 1.1 × 0.4. The experimental design was a randomized complete block with three replications in a 4 × 4 factorial scheme with four N concentrations (8, 12, 16, and 20 mmol L-1) and four K concentrations (4, 6, 8, and 10 mmol L-1). The experimental plot constituted of eight plants. It was observed that the leaf levels of N and K, of N-NO3 and of K, and the electrical conductivity (CE) of the substrate increased with the increment of N and K in the nutrients' solution. Substratum pH, in general, was reduced with increments in N concentration and increased with increasing K concentrations in the nutrients' solution. Leaf area increased with increments in N concentration in the nutrients solution. Fertigation with solutions stronger in N (20 mmol L-1) and K (10 mmol L-1) resulted in higher masses for the first (968 g) and the second (951 g) fruits and crop yield (4,425 gm-2). © 2013 Luiz Augusto Gratieri et al.
Issue Date: 
The Scientific World Journal, v. 2013.
  • nitrogen
  • potassium
  • Brazil
  • climate
  • coconut
  • electric conductivity
  • fertigation
  • fruit set
  • harvest
  • leaf area
  • melon
  • moisture
  • nutrient
  • nutrient content
  • nutritional status
  • pH
  • plant growth
  • plant leaf
  • water retention
  • chemistry
  • dose response
  • drug effect
  • growth, development and aging
  • metabolism
  • Cocos
  • Cucumis melo
  • Dose-Response Relationship, Drug
  • Nitrogen
  • Potassium
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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