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Chinese Journal of Applied Ecology ›› 2004, Vol. ›› Issue (4): 655-658.

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Effects of nitrogen forms on roots and N fertilizer efficiency of different wheat cultivars with specialized end-uses

MA Xinming, WANG Zhiqiang, WANG Xiaochun, WANG Shuli   

  1. College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China
  • Received:2002-09-02 Revised:2003-07-21 Online:2004-04-15

Abstract: A pot experiment showed that under NH2-N treatment,strong gluten wheat Yumai 34 had the highest root biomass,root activity,N use efficiency,N harvest index and grain protein content,but all of these were the lowest under NO3--N treatment.For the medium gluten wheat Yumai 49,the items measured were the highest under NH4+-N treatment,but not the same trend under NO3--N and NH2-N treatments.For the weak gluten wheat Yumai 50,NH4+-N treatment was the best for its top quality and specialized end-uses.There was a significant relationship between grain protein content and N harvest index.

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