ACTA AGRICULTURAE BOREALI-SINICA

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Effects of Biological Tillage on Soil Microbiota and Bacterial Physiologies Colony

LI Shuang-xi1,2,3,4, ZHENG Xian-qing1,2,3,4, YUAN Da-wei1,2,3,4, ZHANG Juan-qin1,2,3,4, HE Qi-yong1,2,3,4, Lü Wei-guang1,2,3,4   

  1. Institute of Eco-Environment and Plant Protection,Shanghai Academy of Agricultural Sciences, Shanghai Scientific Observation and Experimental Station for Agricultural Environment and Land Conservation,Ministry of Agriculture,Shanghai Key Laboratory of Protected Horticultural Technology,Shanghai Environmental Protection Monitoring Station of Agriculture,Shanghai 201403,China
  • Received:2012-09-20 Published:2012-12-31

Abstract: Field plot experiments were carried out to investigate the effect of biological tillage on soil microbiotaand microbial physiologies colony. Three treatments which were conventional tillage ( CK) , no tillage ( T1 ) and biological tillage ( T2) were set up. The results showed that biological tillage could increase the nutrient contents andthe soil moisture content compared with CK, especially in the 5 - 20 cm layer, in which the contents of soil organicmatter, total nitrogen, available phosphorous, and soil moisture content were improved 58. 33 % , 68. 93 % , 67. 06%and 16. 19% , respectively. The numbers of microbial physiologies colony obviously increased in T1 and T2. The application of maize to soil ( T2) gave significantly higher number of bacteria, actinomycete and lower number of fungi( P < 0. 05) , so did the numbers of ammonifier, nitrifier, inorganic phosphorus decomposing microbes( P < 0. 05 ) .Increasing earthworm activity was contributive to improve soil physicochemical properties and enzyme activities inagro-ecosystem, which was very important in improving soil fertilization.

Key words: Biological tillage, Earthworm, Microbiota, Bacterial physiological colony

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Cite this article

LI Shuang-xi, ZHENG Xian-qing, YUAN Da-wei, ZHANG Juan-qin, HE Qi-yong, Lü Wei-guang. Effects of Biological Tillage on Soil Microbiota and Bacterial Physiologies Colony[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.066.