ACTA AGRICULTURAE BOREALI-SINICA ›› 2010, Vol. 25 ›› Issue (S2): 220-225. doi: 10.7668/hbnxb.2010.S2.049

Special Issue: Chinese cabbage Soil fertilizer Saline-alkali stress

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Effect of Nitrogen Levels on Yield,Nitrate and Nitrogen Utilization of Chinese Cabbage

LI Ruo-nan1, ZHANG Yan-cai1, HUANG Shao-wen2, TANG Ji-wei2, WANG Li-ying1   

  1. 1. Institute of Research and Environment,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China;
    2. Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China
  • Received:2010-11-10 Published:2010-12-31

Abstract: "This study was conducted to determine the effect of nitrogen application rates on yield,nitrate and nitrogen utilization of Chinese cabbage under relatively high soil nitrogen fertility level by the field experiment in He village,Zhonghan town,Gaoyi county in Hebei province.The results showed that Chinese cabbage yield tended to increase with increasing nitrogen application.Nitrogen application averagely increased yield of Chinese cabbage by 5.5%,and increased income by 570.4 Yuan/ha,with relatively high yield and income at N rate of about 150 kg/ha applied.Total biomass accumulation and total N uptake of Chinese cabbage tended to increase at first and then decrease,with the highest values of them at N rates of 150 and 225 kg/ha applied.Relatively high recovery rate(31.5%-43.1%)and agronomic efficiency(18.5-26.3 kg/kg),and relatively low apparent N loss(31.5-168.4 kg/ha) of applied N below 225 kg/ha was found.Whereas recovery rate and agronomic efficiency of applied N at rates of 300-525 kg/ha decreased significantly,and apparent N loss increased greatly,with significant increase of N losses by leaching resulting from distinct increase in nitrogen content in upper soil layer.The proper rate of N of Chinese cabbage based on yield,income and environment was about 150 kg/ha under this experimental condition. "

Key words: Chinese cabbage, Nitrogen levels, Yield, Nitrate, Nitrogen utilization

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Cite this article

LI Ruo-nan, ZHANG Yan-cai, HUANG Shao-wen, TANG Ji-wei, WANG Li-ying. Effect of Nitrogen Levels on Yield,Nitrate and Nitrogen Utilization of Chinese Cabbage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(S2): 220-225. doi: 10.7668/hbnxb.2010.S2.049.

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