Title: Study of Condition on Soil Salinization of Protected Farmland in Red Soil of Southwest
Abstract: In order to know the physical and chemical properties of protected farmland soil in red soil of Southwest,pH value,organic matter,total N,nitrate nitrogen,available phosphorus,available potassium in the protected vegetable soil with the different years of cultivation( 1,3,5,7years) were studied in Jinning county,Kunming City. The results showed that soil acidity in the shed was higher than that of outdoor vegetable soil,the organic matter,total N,nitrate nitrogen,available phosphorus,available potassium contents in the protected farmland decreased with the increase of soil depth in the same year,and rose with the increase of cultivation year in the same soil depth. The nitrate nitrogen contents had a significantly negative correlation and significant correlation with the pH value and organic matter. The contents of soil nitrate nitrogen decreased with soil pH value increasing,and increased with the contents of soil organic matter increasing.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot