河南农业科学Issue(10)：42-46,5.
不同灌溉方法对保护地土壤钙素形态及其含量的影响
Effect of Different Irrigation Methods on Soil Calcium Forms and Content in Protected Field
摘要
Abstract
To investigate the effects of different irrigation methods on soil calcium forms and content in protected field,this study analyzed calcium forms and content in soil at the depth of 0-80 cm in protected fields with furrow irrigation,subsurface irrigation,drip irrigation for 13 years, respectively.The results showed that the contents of total calcium,acid soluble calcium,water soluble calcium,exchangeable calcium at the same soil depth were significantly different among different irrigation treatments.On the whole,the content of total calcium under subsurface irrigation was higher than that under drip irrigation and furrow irrigation,the content order of acid soluble calcium was drip irrigation>subsurface irrigation>furrow irrigation,the contents of exchangeable calcium under subsurface irrigation and drip irrigation were higher than that under furrow irrigation,the content order of water soluble calcium was furrow irrigation> subsurface irrigation>drip irrigation.The pH value had very significant positive correlation with acid soluble calcium content,had significant negative correlation with water soluble calcium content in soil at the depth of 0-80 cm;the organic matter content had significant positive correlations with total calcium content,acid soluble calcium content and exchangeable calcium content in soil at the depth of 5-80 cm.Overall,subsurface irrigation was beneficial to the supply of calcium in soil.关键词
保护地/土壤/灌溉/钙素/形态/含量Key words
protected field/soil/irrigation/calcium/forms/content分类
农业科技引用本文复制引用
张莹,张玉龙..不同灌溉方法对保护地土壤钙素形态及其含量的影响[J].河南农业科学,2014,(10):42-46,5.基金项目
国家973计划项目（2011CB100502）；沈阳市科技攻关项目 （）
