Nitrogen, phosphorus, potassium, acid, sugar and vitamin C content in tomato grown in different soil types and under different nitrogen doses

Imre Cserni, Judit Borsné Petö, Attila Hüvely, Tamás Németh, Krisztina R. Végh

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Abstract

As a part of our research project according to nitrogen flow in soils and vegetable cultures, experiments were made in the nursery garden of our Institute (KF KFK), using large volume lysimeters, sunk in the ground. The macroelement content of tomato leaves and fruits, and acid, sugar and vitamin C levels of tomato fruits were examined. Four different nitrogen doses (0, 60, 120 and 180 kg ha-1 N) were used beside 600 kg ha-1 Cropcare slow release fertilizer in sandy, alluvial and chernozem soils. Total N levels and other parameters were determined in two harvest times. The lowest total N was shown in tomato leaves grown in sandy soil. Leaf analysis clearly confirmed N translocation from the young leaves to the old ones. These observations attract attention to the importance of sampling. The lower N fertilizer doses did not increase N content in leaves, and only the higher N doses increased total N levels in fruit as well. Phosphorus content did not differin young and old leaves considerably, though potassium levels were higher in young tomato leaves, 0.28% on average. Potassium levels in fruit decreased continuously by increasing N doses. Higher nitrogen fertilizer doses increased acid content in tomato berry on sandy and alluvial soils. The biggest decrease in acid level was shown on chernozem during the growing season. Sugar content increased in tomato grown on alluvial and chernozem soils. Nitrogen doses decreased sugar contents in chernozem. The increase in vitamin C levels in sandy soil was slight due to higher nitrogen doses. Vitamin C content decreased slightly in the fruit during the growing period.

Original languageEnglish
Pages (from-to)1415-1418
Number of pages4
JournalCereal Research Communications
Volume36
Issue numberSUPPL. 5
DOIs
Publication statusPublished - Dec 1 2008

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Keywords

  • Acid
  • Nitrogen fertilization
  • Soil types
  • Sugar
  • Tomato
  • Vitamin C content

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Genetics

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