ACTA AGRICULTURAE BOREALI-SINICA

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Study on Fertilizer Nitrogen Supply and Uptake by Broccoli under Different Fertilizer Treatments

GUO Shou-chun1,2, ZOU Guo-yuan2, ZUO Qiang2, WU Jian-xin2, SHI Ling1   

  1. 1. Agriculture Academy,Inner Mongolia Agriculture University,Huhhot 010018,China;
    2. Institute of Plant Nutrition and Natural Resources,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China
  • Received:2012-08-26 Published:2012-12-31

Abstract: An experiment had been carried out to study nitrogen uptake and balance in Cauliflower culture under greenhouse conditions. It include six treatments that conventional fertilization ( CON) , less nitrogen fertilization( LNF, reduce 30% nitrogen compare with CON) , conventional + cath ( COC) , signal organic fertilization ( OM)and blank( CK) . The research shows that using fertilization to improve the yield of cauliflower about 2% - 14% , butLNF and COC have no obvious influent on yield. With the increasing of nitrogen fertilization, the use ratio that physiology, apparent, agronomic of nitrogen fertilization are decreased, the efficiency of OM is best. Cauliflower use ratioof apparent of nitrogen fertilization is 10% - 6% . However, 90% - 94% nitrogen fertilization were not consumed bycrops, and with the increasing of amount nitrogen fertilization, N apparent balance increasing too. With the increasing of nitrogen fertilization the nitrate is increasing too, but, Vc is decrease in cauliflower. LNF and COC can improve the Vc but decrease nitrate in cauliflower. The reduce 30% Nitrogen fertilization and the conventional + catchhave best effect.

Key words: Nitrogen, Nitrate, Balance, Production

CLC Number: 

Cite this article

GUO Shou-chun, ZOU Guo-yuan, ZUO Qiang, WU Jian-xin, SHI Ling. Study on Fertilizer Nitrogen Supply and Uptake by Broccoli under Different Fertilizer Treatments[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.056.