绿肥长期培肥对梨园土壤团聚体和有机质分布的影响  

Effect of Long-term Planting Green Manure on Distribution of Soil Aggregates and Organic Matter in Pear Orchard

作　　者：石温慧 赵曙良 程福厚 赵伟桥 刘小粉 SHI Wenhui;ZHAO Shuliang;CHENG Fuhou;ZHAO Weiqiao;LIU Xiaofen(College of Landscape and Ecological Engineering,Hebei University of Engineering,Handan Hebei 056038;Agricultural and Rural Bureau of Yongnian District in Handan City,Handan Hebei 057150)

机构地区：[1]河北工程大学园林与生态工程学院,河北邯郸056038 [2]邯郸市永年区农业农村局,河北邯郸057150

出　　处：《现代农业科技》2023年第10期150-153,共4页Modern Agricultural Science and Technology

基　　金：河北省重点研发计划(22327501D);河北省梨产业创新团队土壤耕作与肥水调控岗项目(HBCT2021210203)。

摘　　要：以5年定位试验为基础,设置二月兰处理和自然生草处理,探讨长期不同培肥处理对梨园土壤团聚体和有机质分布的影响。结果表明:0.05~0.25 mm粒级团聚体在土壤中占优势(占比45.6%~46.7%),与自然生草处理相比,二月兰处理对梨园土壤团聚体分布无显著影响;除≥2.00 mm粒级团聚体外,二月兰处理整土和各粒级团聚体有机质含量均显著高于自然生草处理;0.25~2.00 mm粒级团聚体对土壤有机质的贡献率在2个处理间存在显著差异,其余各粒级2个处理间差异不显著;大团聚体有机质含量与0.25~2.00 mm粒级团聚体含量间存在极显著正相关性。综上所述,梨园二月兰培肥效果优于自然生草。Based on a 5-year positioning trial,the effect of long-term planting green manure(Orychophragmus violaceus and natural grass)on the distribution of soil aggregates and organic matter in pear orchard was investigated.The results showed that 0.05-0.25 mm soil aggregates were dominant in soil(accounting for 45.6%-46.7%).Compared with the natural grass treatment,the Orychophragmus violaceus treatment had no significant effect on the distribution of soil aggregates in orchard soil.Except for the≥2.00 mm soil aggregates,the organic matter contents of the whole soil and aggregates with different particle sizes in the Orychophragmus violaceus treatment were significantly higher than those in the natural grass treatment.The contribution rate of 0.25-2.00 mm soil aggregates to soil organic matter was significantly different between the two treatments,and there was no significant difference in the contribution rate of other soil aggregates between the two treatments.There was a extremely significant positive correlation between the organic matter content of aggregates with big particle size and the content of 0.25-2.00 mm soil aggregates.In summary,the fertility improvement effect of Orychophragmus violaceus in pear orchard is better than that of natural grass treatment.

关 键 词：梨园 二月兰 土壤团聚体 有机质 

分 类 号：S142[农业科学—肥料学]