YAO Zhilong.Effect of Soil Organic Matter on Nitrogen Soil Nutrition of Orchard and Field in Rain Fed Area of Longdong[J].Northern Horticulture,2016,40(18):176-180.[doi:10.11937/bfyy.201618044]
陇东果园及大田土壤有机质含量对土壤氮素营养的影响
- Title:
- Effect of Soil Organic Matter on Nitrogen Soil Nutrition of Orchard and Field in Rain Fed Area of Longdong
- Keywords:
- orchard soil; field soil; organic matter; nitrogen nutrition; correlation
- 文献标志码:
- A
- 摘要:
- 为研究庆阳地区果园土壤有机质含量对土壤氮素营养的影响，对30个果园和临近地块大田土壤进行了有机质含量和氮素营养的农化测定对比分析。结果表明：果园土壤平均有机质含量为1312 g?kg-1，平均全氮含量为075 g?kg-1，平均速效氮含量为7597 mg?kg-1；大田土壤平均有机质含量为1050 g?kg-1，平均全氮含量为070 g?kg-1，平均速效氮含量为5250 mg?kg-1。与当地大田土壤养分含量相比，果园土壤有机质、全氮、速效氮的含量较高。大田土壤有机质与全氮含量的相关关系为y=0064 3x+0032 4，相关系数R2=0707 3，全氮与速效氮含量之间的相关关系为y=57917x+11808，相关系数R2=0659 5；果园土壤的有机质与全氮、全氮与速效氮之间无明显的相关性。
- Abstract:
- This experiment was conducted in 30 orchards and nearly field on rain fed area of Longdong.Aimed to research effects of soil organic matter on nitrogen in soil.The results showed the average soil organic matter was 1312 g?kg-1 in orchard soil.Also，the average total nitrogen was 075 g?kg-1，the average available nitrogen was 7597 mg?kg-1.But in field soil，the average soil organic matter，the average total nitrogen，and the average available nitrogen separately were 1050 g?kg-1，070 g?kg-1，5250 mg?kg-1.The content of organic matter，total nitrogen and available nitrogen were significantly higher in orchard than field.The correlation between soil organic matter and total nitrogen content was y=0064 3x+0032 4 (R2=0707 3) in field soil.The correlation between total nitrogen and available nitrogen content was y=57917x+11808* (R2=0659 5).But the above correlation was not found in orchard soil.
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备注/Memo
作者简介：姚志龙(1968-)，男，甘肃宁县人，本科，副教授，现主要从事土壤学及土壤调查与评价和果树土水肥等教学与科研工作。E-mail：yzl8844@163.com.基金项目：甘肃省庆阳市科技支撑计划资助项目（KN201316)。