华北农学报 ›› 2019, Vol. 34 ›› Issue (S1): 176-182. doi: 10.7668/hbnxb.20190214

所属专题: 土壤肥料

• 资源环境·植物保护 • 上一篇    下一篇

生物质炭与有机肥料配施可以促进设施菜地土壤水稳性团聚体形成

王彤, 雍继芳, 林启美, 赵小蓉, 李贵桐   

  1. 中国农业大学 资源与环境学院, 北京 100193
  • 收稿日期:2019-03-30 出版日期:2019-12-28
  • 通讯作者: 林启美(1961-),男,湖北武穴人,教授,博士,主要从事土壤生物与生物过程研究。
  • 作者简介:王彤(1995-),女,河北石家庄人,在读硕士,主要从事土壤肥力与土壤改良研究。
  • 基金资助:
    国家科技支撑计划项目(2015BAD05B03)

Improvement of Water-stable Aggregates by Combination of Biochar with Organic Fertilizer in Greenhouse Soil

WANG Tong, YONG Jifang, LIN Qimei, ZHAO Xiaorong, LI Guitong   

  1. College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
  • Received:2019-03-30 Published:2019-12-28

摘要: 探讨生物质炭与有机肥料配施时,设施菜地土壤中水稳性团聚体特征,为土壤结构改良提供科学依据。试验设5个处理:1全量常规有机肥(M4)(3.4 kg/m2),2生物质炭(5 kg/m2)+全量常规有机肥(BM4),3生物质炭+2/3全量常规有机肥+1/3全量厨余发酵物(BM3K1),4生物质炭+1/2全量常规有机肥+1/2厨余发酵物(BM2K2),5生物质炭+1/3全量常规有机肥+全量厨余发酵物(2.26 kg/m2)(BM1K3),种植西红柿,收获后采集0~25 cm土层土壤,测定土壤水稳性团聚体及其有机碳氮含量。结果显示:生物质炭与常规有机肥料及厨余发酵物配合施用,<0.053 mm团聚体质量分数降低了4.0%~8.5%,而>0.500 mm团聚体增加了2%~6%;各级团聚体有机碳含量大幅度提高了167%以上,但各粒级团聚体全氮含量波动较大,没有明显的规律性。各级团聚体的C/N比提高。这说明输入的有机碳参与各级水稳定性团聚体形成,生物炭与常规有机肥及厨余发酵物存在显著的相互作用,配合施用时,更有利于形成大团聚体,施入的有机物质更多地进入大团聚体,其中生物质炭(5 kg/m2)与1/3全量常规有机肥(1.14 kg/m2)及全量厨余发酵物(2.26 kg/m2)配合施用(BM1K3)的效果最好。

关键词: 生物质炭, 厩肥, 餐厨发酵物, 设施菜地, 水稳定性团聚体

Abstract: It is little known that the impacts of combination of biochar with organic fertilizer on soil water-stable aggregates and their characteristic. A field experiment with five treatments of 1 manure (3.4 kg/m2) (M4), 2 biochar (5 kg/m2)+manure (BM4), 3 biochar+2/3 manure+1/3 ki chen waste compost (BM3K1),4 biochar +1/2 manure+1/2 kichen waste compost (BM2K2), 5 biochar +1/3 manure+kitchen waste compost (2.26 kg/m2) (BM1K3), was set up in a greenhouse. The soil samples collected from 0-25 cm soil layer and then determined for soil water stable aggregates and their organic carbon and nitrogen contents following tomato growth. The results showed that application of biochar together with manure and kitchen waste compost resulted in a significant reduction in mass proportion of<0.053 mm aggregates by 4.0%-8.5% while increase in the mass proportions of> 0.500 mm aggregates by 2%-6%. The organic carbon in all the aggregates increased by at least 167%,however, the total nitrogen content of the aggregates fluctuated greatly without obvious regularity. The ratios of C/N were therefore enhanced in all the aggregates. It was evident that the added organic C entered the aggregates. The combination of biochar with both manure and kitchen waste compost induced a strong interactions in macro-aggregate formation. The appropriate combination might be 5 kg/m2 biochar together with 1.14 kg/m2 manure and 2.26 kg/m2 kitchen waste compost (BM1K3).

Key words: Biochar, Manure, Kitchen waste compost, Greenhouse vegetable field, Water-stable aggregate

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引用本文

王彤, 雍继芳, 林启美, 赵小蓉, 李贵桐. 生物质炭与有机肥料配施可以促进设施菜地土壤水稳性团聚体形成[J]. 华北农学报, 2019, 34(S1): 176-182. doi: 10.7668/hbnxb.20190214.

WANG Tong, YONG Jifang, LIN Qimei, ZHAO Xiaorong, LI Guitong. Improvement of Water-stable Aggregates by Combination of Biochar with Organic Fertilizer in Greenhouse Soil[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 176-182. doi: 10.7668/hbnxb.20190214.

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