不同种植模式对土壤速效养分和腐殖质组分的影响
Effect of different cropping patterns on soil fast-acting nutrients and humus fractions
邢琳琼 1赵美微1
作者信息
- 1. 河北环境工程学院,河北 秦皇岛 066102;河北科技大学环境科学与工程学院,河北 石家庄 050018
- 折叠
摘要
本研究基于长期定位试验,对比分析了不同土层常规种植模式菜花(T0)和有机种植模式,依次为辣椒(T1)、大地辣椒(T2)、玉米(T3)和花椰菜(T4)对土壤速效养分和腐殖质组分的影响.结果表明,有机种植模式T3土壤平均速效氮含量最高,为110.67 mg/kg,平均含量依次为T3>T2>T1>T0>T4;T2、T3和T4模式土壤平均速效磷含量均低于T0,平均含量依次为T1>T0>T2>T4>T3;T2土壤平均速效钾含量最高,为275.13 mg/kg,平均含量依次为T2>T3>T4>T1>T0;T3土壤平均胡敏酸含量最高,为1.38 g/kg,平均含量依次为T3>T2>T4>T1>T0;4种有机种植模式的土壤平均富里酸含量均低于常规种植模式,含量由高到低依次为T0>T4>T1>T3>T2.有机种植模式下土壤平均速效氮、速效钾和胡敏酸含量较常规种植模式高.土壤胡敏酸与速效钾、速效氮与速效钾之间存在相关性(P<0.05).综上来看,有机种植模式可明显改善土壤速效养分和腐殖质组分,提高土壤肥力.
Abstract
The effects of conventional planting model cauliflower(T0)and organic planting models chili(T1),open-air chili(T2),maize(T3),and cauliflower(T4)on soil fast-acting nutrients and humus fractions in different soil layers were compared based on a long-term positioning experiment.The results showed that the organic planting pattern T3 had the highest average soil fast-acting nitrogen content,at 110.67 mg/kg,with the average content ranked as T3>T2>T1>T0>T4;the average soil fast-acting phosphorus content in patterns T2,T3,and T4 was all lower than T0,with the average content ranked as T1>T0>T2>T4>T3;T2 had the highest average soil fast-acting potassium content,at 275.13 mg/kg,with the average content ranked as T2>T3>T4>T1>T0;T3 had the highest average soil humic acid content,at 1.38 g/kg,with the average content ranked as T3>T2>T4>T1>T0;the average soil fulvic acid content of the four organic planting patterns was all lower than the conventional planting pattern,with the content ranked from high to low as T0>T4>T1>T3>T2.The average content of fast-acting nitrogen,fast-acting potassium,and humic acid in soil under organic planting model was higher than that under conventional planting model.There were correlations between soil humic acid and fast-acting potassium,fast-acting nitrogen and fast-acting potassium(P<0.05).In conclusion,organic planting can significantly improve soil fast-acting nutrients and humus components,and improve soil fertility.
关键词
土壤速效养分/腐殖质组分/有机种植/土壤肥力Key words
soil fast-acting nutrients/humus fractions/organic planting/soil fertility引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据