蚯蚓粪配施化肥对玉米根际土壤生物学特征的影响

徐宪斌

doi:10.13961/j.cnki.stbctb.2017.01.014

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蚯蚓粪配施化肥对玉米根际土壤生物学特征的影响

试验研究

- 蚯蚓粪配施化肥对玉米根际土壤生物学特征的影响
- Effects of Vermicompost Co-applied with Inorganic Fertilizer on Soil Biological Characteristics in Rhizosphere of Maize
- 水土保持通报 2017年37卷第1期页码：78-82
- 作者机构：
  
  德州市农业科学研究院,山东,德州,253015
- 作者简介：
- 基金信息：
  
  山东省科技发展计划项目“鲁西北地区新型日光温室及其蔬菜生产关键技术研究集成与示范”（2012GNC11108）
- DOI：10.13961/j.cnki.stbctb.2017.01.014
  中图分类号：
- 纸质出版：2017
- 稿件说明：
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徐宪斌. 蚯蚓粪配施化肥对玉米根际土壤生物学特征的影响[J]. 水土保持通报, 2017,37(1):78-82.

XU Xianbin. Effects of Vermicompost Co-applied with Inorganic Fertilizer on Soil Biological Characteristics in Rhizosphere of Maize[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 78-82.
徐宪斌. 蚯蚓粪配施化肥对玉米根际土壤生物学特征的影响[J]. 水土保持通报, 2017,37(1):78-82. DOI： 10.13961/j.cnki.stbctb.2017.01.014.

XU Xianbin. Effects of Vermicompost Co-applied with Inorganic Fertilizer on Soil Biological Characteristics in Rhizosphere of Maize[J]. Bulletin of Soiland Water Conservation, 2017, 37(1): 78-82. DOI： 10.13961/j.cnki.stbctb.2017.01.014.

摘要

[目的] 探讨蚯蚓粪与化肥配施对玉米根际土壤生物学性状的作用效果，为土壤培肥制度的建立与玉米的合理施肥提供理论依据。[方法] 通过大田试验，研究CF（单施化肥）、VC（蚯蚓粪）与VC+CF（蚯蚓粪和化肥各提供50%的氮）等处理对玉米根系分泌物、根际土壤微生物数量、酶活性与腐殖质组成的影响。[结果] 同CF处理相比，VC+CF处理显著提高了根系分泌物含量，并明显提高了根际土壤中微生物数量、微生物量碳含量及脲酶、蔗糖酶、过氧化氢酶、中性磷酸酶活性，其中细菌数分别较CK，CF与VC处理提高124.32%，62.99%和15.45%，脲酶活性分别高出44.27%，23.53%和12.50%。此外，VC+CF处理亦显著提高了根际土壤中胡敏酸、富里酸含量和胡/富比。同VC+CF处理相比，VC处理对玉米根际土壤生物学特征的影响较小。[结论] 蚯蚓粪与化肥配施能较好地改善玉米根际区域的微生态环境。

Abstract

[Objective] The objective of this study is to explore the effect of vermicompost co-applied with inorganic fertilizer on biological characteristics in rhizosphere soil of maize and to provide theoretical basis for the development of the soil fertilizer system and reasonable fertilization of corn. [Methods] A field experiment was conducted to determine the effect of four treatments

CK(neither urea nor vermicompost was applied)

CF(100% of nitrogen was provided by urea)

VC(100% of nitrogen was provided by vermicompost)

and VC+CF (50% and 50% of nitrogen was provided by vermicompost and urea

respectively) on root exudates

microorganism population

enzyme activities and humus composition in the rhizosphere soil of maize. [Results] The VC+CF treatment significantly increased root exudates

and microorganism population

microbial biomass carbon

as well as the enzyme activities of urease

invertase

catalase and neutral phosphatase compared with CF treatment. The bacterial population increased by 124.32%

62.99% and 15.45%

and the urease enzyme activity increased by 44.27%

23.53% and 12.50% compared with the treatments of CK

CF and VC

respectively. In addition

the VC+CF treatment also obviously increased the contents of humic acid and fulvic acid

and the ratio of humic acid to fulvic acid. However

effect on biological properties in rhizosphere soil of maize in VC treatment was less than that in VC+CF treatment. [Conclusion] In summary

vermicompost co-applied with inorganic fertilizer had better effect on micro-ecological environment in rhizosphere soil of maize.

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