Dynamic Change of M ain Farmland Alluvial Soil Nutrients in Henan Province
LI Yan-mei
YUAN Tian-you
ZHANG Chuan-zhong
Abstract：In order to find out the dynamic change rule of soil fertility in Chao soil region of Henan province ,the long-term experiment of soil fertility was conducted in the alluvial soil of Henan province . The results showed that the soil nutrient content of conventional fertilization treatments was significantly higher than that of non-fertilization ones .The contents of soil organic matter ,total nitrogen and available nitrogen in long-term fertilization showed a slowly rising trend ,which increased by 2.12 g/kg , 0.048 7 g/kg and 3.79 mg/kg respectively in 2011 compared with those in 1998 .The content of soil available phosphorus in long-term fertilization showed a slowly downward trend ,which was 5.12 mg/kg lower in 2011 than in 1998 .The content of soil available potassium in long-term fertilization and non-fertilization treatments all showed a slowly downward trend .The contents of soil organic matter ,total nitrogen ,available nitrogen and available phosphorus in non-fertilization treatments all showed the slowly dow nw ard trends ,w hich decreased by 0.63 g/kg ,0.123 3 g/kg ,32.68 mg/kg and 12.32 mg/kg , respectively .T his suggested that the deficiency of phosphorus and potassium in the main farmland alluvial soil region of Henan province w as more prominent .
Keywords：Henan provincealluvial soillong-term monitoringnutrient content
Publication Date：2014-06-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 49-52 )