Acta Agriculturae Boreali-Sinica

ACTA AGRICULTURAE BOREALI-SINICA ›› 2006, Vol. 21 ›› Issue (S2): 46-50. doi: 10.3321/j.issn:1000-7091.2006.z2.011

Special Issue: Wheat； Soil fertilizer；

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The Dynamic Changes of NO3-_N,NH4+_N and P in Soil on Conditions of Water Situation,Different Amounts and Depths of Papplied

LIU Wen-ju1, LI Mei-ru2, ZHAO Quan-li1, LI Ke-jiang3, ZHANG Xi-ke1, LIU Wei1   

  1. 1. College of Resource and Environmental Science, Agricultural University of Hebei, Baoding 071001, China;
    2. Normal School of Langfang in Hebei Province, Langfang 065000, China;
    3. Dryland Farming Insititute of Hebei Academy of Agriculture and Forestry Sciences, Hengshui 053000, China
  • Received:2006-04-22 Published:2007-01-01

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Abstract: In the field experiment,the effect of different amounts and depths of P applied and water conditions on N and P concentrations in soil during different period of winter wheat were studied.The results showed that the concentrations of NO3-_N changed with N-uptke by winter wheat in different growing period,the concentrations of NO3-_N was lower at both reviving stage and filling stage.Water situation and the rate of fertilizer_P applied had no significant effect on the concentrations of NH4+_N except for booting stage;The contents of available P had some correlation with uptake of N and P in every period of winter wheat.

Key words: Winter Wheat, NO3-_N, NH4+_N, Available P

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Cite this article

LIU Wen-ju, LI Mei-ru, ZHAO Quan-li, LI Ke-jiang, ZHANG Xi-ke, LIU Wei. The Dynamic Changes of NO3-_N,NH4+_N and P in Soil on Conditions of Water Situation,Different Amounts and Depths of Papplied[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(S2): 46-50. doi: 10.3321/j.issn:1000-7091.2006.z2.011.

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