›› 2017, Vol. 29 ›› Issue (5): 818-823.DOI: 10.3969/j.issn.1004-1524.2017.05.19

• Environmental Science • Previous Articles     Next Articles

Effect of rotation tillage on soil microbial biomass and enzyme activity of broccoli

YANG Zifeng1, CHEN Weiqiang1, WANG Wei2, *, LI Wanyi3, HE Xianbiao1, YANG Xiangtian1   

  1. 1. Taizhou Academy of Agricultural Sciences, Linhai 317000, China;
    2. College of Resources and Environmental Science, Hubei University, Wuhan 430062, China;
    3. Crop Management Station of Luqiao District, Taizhou City, Taizhou 318050, China
  • Received:2016-01-01 Online:2017-05-20 Published:2017-06-06

Abstract: In order to study the effects of crop rotation patterns on soil microbes and enzyme activities, “broccoli-free” rotation was used as control, and “broccoli-pumpkin”, 1 a rotation of “broccoli-early rice” and 2 a rotation of “broccoli-early rice” were selected. Microorganism and enzyme activity of soil were tested before broccoli planting and after harvest. Before broccoli planting, the quantity of bacteria, actinomycetes and fungi were the highest in“broccoli-pumpkin” rotation soil. After broccoli harvest, the quantity of bacteria and fungi was the highest in 2 a rotation of “broccoli-early rice” soil, while the quantify of actinomycetes was the highest in 1 a “broccoli-early rice” rotation soil. Before broccoli planting, soil microbial biomass nitrogen was the highest in 1 a rotation of “broccoli-early rice”. After broccoli harvest, soil microbial biomass nitrogen and carbon were the highest in 2 a rotation of “broccoli-early rice” soil. Before broccoli planting, soil urease activity was the highest in 2 a rotation of “broccoli-early rice” rotation. After broccoli harvest, soil urease and sucrase activity were both the highest in 2 a rotation of “broccoli-early rice”soil. In conclusion, compared with the other 3 rotation modes, 2 a rotation of “broccoli-early rice” could effectively improve soil microbial environment and promote soil enzyme activity in broccoli cultivation land.

Key words: rotation, broccoli, soil microbes, soil enzyme activities

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