Effect of Different Irrigation Methods on Soil Calcium Forms and Content in Protected Field
ZHANG Ying
ZHANG Yu-long
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.
Keywords：protected fieldsoilirrigationcalciumformscontent
Publication Date：2014-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 42-46 )