<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">The aim of the experiments carried out in 2007-2008 was to assess the effect of various nitrogen doses on the growth, yield and nutritional value of two endive cultivars Cigal and Excel. The effects of two types of fertilizers were compared: that of ammonium nitrate with that of the product Entec-26. On the basis of the results obtained, it was shown that endive cv. Excel produced a marketable yield that was on average by 35.5% higher than that of the cultivar Cigal. A significantly higher marketable yield of endive was obtained by fertilizing with a single dose of the fertilizer Entec-26, particularly at the rates of 90 and 135 kg N·ha-1, and also 180 kg N·ha-1. The experiments also revealed a significant effect of the fertilization method and nitrogen application rate on the biological value of the endive cultivars under evaluation. The cultivar Excel was characterized by a higher degree of nitrate accumulation, whereas the cultivar Cigal had a higher vitamin C content, dry weight, and chlorophyll content.</abstract>

The aim of the experiments carried out in 2007-2008 was to assess the effect of various nitrogen doses on the growth, yield and nutritional value of two endive cultivars Cigal and Excel. The effects of two types of fertilizers were compared: that of ammonium nitrate with that of the product Entec-26. On the basis of the results obtained, it was shown that endive cv. Excel produced a marketable yield that was on average by 35.5% higher than that of the cultivar Cigal. A significantly higher marketable yield of endive was obtained by fertilizing with a single dose of the fertilizer Entec-26, particularly at the rates of 90 and 135 kg N·ha-1, and also 180 kg N·ha-1. The experiments also revealed a significant effect of the fertilization method and nitrogen application rate on the biological value of the endive cultivars under evaluation. The cultivar Excel was characterized by a higher degree of nitrate accumulation, whereas the cultivar Cigal had a higher vitamin C content, dry weight, and chlorophyll content.

Effect of Nitrogen Fertilization on Yield and Quality of Endive

Department of Horticulture, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 24a, 50-363 Wrocław, Poland

Journal of Fruit and Ornamental Plant Research

{"article-title":"Effect of Nitrogen Fertilization on Yield and Quality of Endive"}

The aim of the experiments carried out in 2007-2008 was to assess the effect of various nitrogen doses on the growth, yield and nutritional value of two endive...

Effect of Nitrogen Fertilization on Yield and Quality of Endive

Published Online: Jul 31, 2009

Page range: 193 - 201

DOI: https://doi.org/10.2478/v10032-009-0019-6

Keywords
endive, N fertilization, Entec-26, ammonium nitrate, nitrates, biological value

This content is open access.

Effect of Nitrogen Fertilization on Yield and Quality of Endive

Published Online: Jul 31, 2009

Page range: 193 - 201

DOI: https://doi.org/10.2478/v10032-009-0019-6

Keywordsendive, N fertilization, Entec-26, ammonium nitrate, nitrates, biological value

This content is open access.

Keywords
endive, N fertilization, Entec-26, ammonium nitrate, nitrates, biological value