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ACTA HORTICULTURAE SINICA ›› 2005, Vol. 32 ›› Issue (6): 1070-1072.

• 研究报告 • Previous Articles     Next Articles

Absorption and Partition of Different Nitrogen Forms in Strawberry

Zhang Qing;Peng Futian;Jiang Yuanmao;Peng Yong;Zhou Peng   

  1. ( Institute of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, China)
  • Received:2004-01-16 Revised:2005-05-08 Online:2005-12-25 Published:2005-12-25

Abstract: The technique of stable isotope 15N trace was used to study the absorption and partition to different nitrogen forms in strawberry fruit ripe stage using‘Guinugan’ ( Fragaria grandiflora Ehrh. ) as materials. Results indicated that underwater culture condition, the rank of 15N utilization rate was (NH4 )2SO4 >
Gly >Ca (NO3)2 >L-Glu, and 15Nutilization rate of NH+4-N and Gly-N was increased when they were mixed with NO-3-N; When the leaf was labeled , the rank of 15N utilization rate was Urea > Gly >L-Glu. The competition ability to Ca (NO3)2 of fruit was lower than that of leaf , but concerning to (NH4)2SO4, Gly and L-Glu it was higher.

Key words: Strawberry, Nitrogen form, Nitrogen fertilizer utilization rate, 15N

CLC Number: