文章摘要
Accumulation and distribution characteristics of biomass and nutrient in bitter gourd(Momordica charantia L.)
  
DOI:
Author NameAffiliation
张白鸽1,2,曹 健2,张长远2,宋 钊2,张福锁1,陈新平1 (1. 中国农业大学资源与环境学院北京 1000942. 广东省农科院蔬菜研究所广东 广州 510640) 
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Abstract:
      Elemental uptake and allocation patterns of crops create insight for nutrient management. On-field experiment was conducted to understand the accumulation and distribution characteristics of biomass and nutrient in bitter gourd. The results revealed that 4.0% of dry matter was accumulated in leaves before harvest and 96% of it was accumulated in leaves and fruits from harvest stage to the end. The total absorption of nutrient in bitter gourd was K>N>P.Different organs at various growth stages showed different accumulation trend. Generally ,the ratio of 1.0∶0.1∶1.4 from seedling stage to early harvest stage,and 1.0∶0.2∶1.6 from harvest peak to the end was optimal for bitter gourd.Throughout growth season, to obtain a ton of bitter gourd,the NPK requirement was 4.63 kg,0.72 kg and 6.87 kg,respectively.
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