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园艺学报 ›› 2013, Vol. 40 ›› Issue (10): 1976-1982.

• 研究报告 • 上一篇    下一篇

平邑甜茶盆栽土壤中沸石用量对幼苗生长及15N–尿素利用的影响

陈 倩,门永阁,周 乐,魏绍冲,姜远茂*   

  1. (山东农业大学园艺科学与工程学院,山东农业大学作物生物学国家重点实验室,山东泰安 271018)
  • 收稿日期:2013-04-09 出版日期:2013-10-25 发布日期:2013-10-25

Effects of Different Zeolite Amount on the Growth of Potted Malus hupehensis Rehd. Seedlings and Utilization of 15N-urea

CHEN Qian,MEN Yong-ge,ZHOU Le,WEI Shao-chong,and JIANG Yuan-mao*   

  1. (College of Horticulture Science and Engineering,Shandong Agricultural University/State Key Laboratory of Crop Biology,Tai’an,Shandong 271018,China)
  • Received:2013-04-09 Online:2013-10-25 Published:2013-10-25

摘要: 以1年生平邑甜茶(Malus hupehensis Rehd.)盆栽幼苗为试材,研究盆栽土壤中沸石施用量对幼苗生长及15N–尿素利用、损失的影响。结果表明,植株的株高、总鲜样质量及对15N–尿素的利用率在生长前期均以低用量沸石处理(沸石0.6和1.2 g · kg-1)最高,但随着生长期的推移,随沸石用量的增加而逐渐提高,到生长后期植株的株高、总鲜样质量和15N利用率均以最高用量处理(沸石2.4 g · kg-1)最高,分别为29.78 cm、29.64 g和17.91%,显著高于对照(23.28 cm、22.52 g和8.81%),但4个沸石处理间无显著差异。整个生长过程中,植株地上部从肥料中吸收分配到的15N量对该部分全氮量的贡献率(Ndff)高于地下部。在生长前期地上部和地下部的Ndff同样以低用量沸石处理(沸石0.6和1.2 g · kg-1)最高,而到生长后期二者均以沸石2.4 g · kg-1处理最高,分别为19.04%和8.34%,显著高于对照(16.27%和5.83%)。施用沸石可以减少土壤氮素的损失,并且沸石用量越高效果越显著。施用沸石后显著促进了植株的生长及对15N的吸收利用,降低了土壤氮素的损失,以沸石2.4 g · kg-1处理效果最佳。

关键词: 平邑甜茶, 沸石, 15N–尿素, 利用, 损失

Abstract: One-year-old potted Malus hupehensis Rehd. seedlings and 15N trace technique were used to explore the effects of zeolite on plant growth and the utilization,loss of 15N-urea. The main results were as follows:The plant height,total wet weight and utilization of 15N-urea under the low zeolite levels (zeolite 0.6 and 1.2 g · kg-1) were the highest at the early growth stage,and then they were higher with the high zeolite level. At the late stage,the plant height,total wet weight and 15N utilization ratio were the highest for zeolite 2.4 g · kg-1 soil,they were 29.78 cm,29.64 g and 17.91% respectively,which were obviously higher than the control(23.28 cm,22.52 g and 8.81%),but the difference among 4 zeolite treatments were not significant. Ndff values of shoots were higher than roots for all treatments during the whole stages. At the early stage,Ndff values of both shoots and roots were the highest for the low zeolite level treatments(zeolite 0.6 and 1.2 g · kg-1),while at the late stage,the values of zeolite 2.4 g · kg-1 soil were the highest,they were 19.04% and 8.34% respectively,which were obviously higher than the control(16.27% and 5.83%). The loss of nitrogen decreased by using zeolite,and the more zeolite used,the more effective was the result. As a whole,with the application of zeolite,the growth of plant and the utilization of 15N were significantly increased and the loss of nitrogen decreased,with zeolite 2.4 g · kg-1 soil treatment showing the best.

Key words: Malus hupehensis Rehd., zeolite, 15N-urea, utilization, loss

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