Midrib Nitrate Concentration as a Means for Determining Nitrogen Needs of Broccoli

B. R. Gardner, R. L. Roth

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Plant analysis has been used to evaluate the nutritional status of many crops for diagnostic and corrective purposes. This study was initiated to establish critical N plant tissue levels using midrib NO3-N concentration for broccoli (Brassica oleracea L., Botrytis group) during the growing season. Tissue samples for nitrate analysis were taken from broccoli plants over a period of three growing seasons beginning at the 4 to 6 leaf stage of growth and biweekly through pre-harvest. The midrib from the most recently matured leaf was sampled for NO3-N concentration determination.

Original languageEnglish (US)
Pages (from-to)111-125
Number of pages15
JournalJournal of Plant Nutrition
Volume12
Issue number1
DOIs
StatePublished - Jan 1989

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science

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