王艳萍,李松龄,秦艳,吕家珑.不同年限日光温室土壤盐分及养分变化研究[J].干旱地区农业研究,2011,29(3):161~164
不同年限日光温室土壤盐分及养分变化研究
Study on dynamics of soil salinity and nutriation of greenhouses in different years
  
DOI：10.7606/j.issn.1000-7601.2011.03.30
中文关键词:  日光温室  土壤盐分  土壤养分  种植年限
英文关键词:greenhouse  soil salinity  soil nutrients  planting years
基金项目:青海省科技厅项目“设施蔬菜品质控制的土壤质量因子研究(2008-N-132)”
作者单位
王艳萍 College of Agriculture and Aninal Husbandry，Qinghai University, Xining 810016， China 
李松龄 Qinghai Academy of Agricultural Sciences，Qinghai University， Xining 810016, China 
秦艳 College of Agriculture and Aninal Husbandry，Qinghai University, Xining 810016， China 
吕家珑 College of Resources and Environment，Norhwest A&F University, Yangling 712100，China 
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中文摘要:
      不同年限日光温室土壤盐分及养分变化研究
英文摘要:
      The soils of greenhouses in Nianbo Town of Ledu County in Qinghai Province were used as samples, and analyis was made of the content of salt and nutrients in soils with different planting yearsof 1, 2, 5，8, 10，15, 22 and 25 ~ 27. The results showed that the the salt content increased with the increase of cultivation years, and the increasing rate ranged from 62.26%~404.72% in contrast with the control; while with the increase of cultivation years, pH de-creasing rate ranged from -6.70%~- 2. 15%; and they had opposite trends; The contents of organic matter, total ni-trogen and total phosphorus were significantly higher than the control， and the increasing rate ranged from 83.84%~213.13%, 58.45%~164.86% and 77.99%~243. 40% respectively compared with the control; The content of available nitrogen also increased，and the increasing rate was from 39.70%~139.38% compared with the control; The available phosphorus changed fluctuately，and the changing rate was between -65. 81%~47.44% compared with con-trol.
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