Chin J Plan Ecolo ›› 1995, Vol. 19 ›› Issue (1): 64-71.

• Research Articles • Previous Articles     Next Articles

Biocycling of Nine Nutrient Elements in Winter Wheat on a Calcareous Alluvial Soil From Beijing

Chen Ming, Tan Jian-an, Yin Chong-ren, Zhu Li-hui   

  • Published:1995-01-10
  • Contact: Lu Cun-fu

Abstract: In this paper, we report the results of a series of greenhouse pot experiments designed to investigate the biocycling of nine mineral elements in winter wheat on a calcareous alluvial soil collected from Beijing region, The results showed that there were significant differences among the quantities and rations amount returned to the soil. We grouped these nutrient elements into three types in accordance with the percentages of output by plants and the amount returned to the soil:1) The type of low returning and high output rates included N, P and K, which generally had returning rate of less than 20% and output rate of greater than 60%.2) The type of high returning and low output rates was composed of Ca and Fe, which had returning rate of greater than 50% and output rate of less than 10%.3) The type of moderate returning and moderate output rates consisted of Mg, Mn, Cu and Zn, which had returning rate falling between 30—50%, and outpualling betling between 20—30%.The total uptake of N an Mn by winter wheat plants and the output or removal of K by grains generally increased due to the application of Mn fertilizers. While the total uptake of Mn by plants decreased with the application of Zn fertilizer. The effects of Mn and Zn fertilizers on the biocyclings of some nutrient elements in winter wheat on a calcareous alluvial soil in Beijing region were quite antagonistic.