河南农业科学Issue(6)：49-52,4.
施肥方式对土壤养分含量的影响
Dynamic Change of M ain Farmland Alluvial Soil Nutrients in Henan Province
摘要
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 .关键词
河南省/潮土/长期定位监测/养分含量Key words
Henan province/alluvial soil/long-term monitoring/nutrient content分类
农业科技引用本文复制引用
李艳梅,袁天佑,张传忠..施肥方式对土壤养分含量的影响[J].河南农业科学,2014,(6):49-52,4.基金项目
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