Chin J Plan Ecolo ›› 2008, Vol. 32 ›› Issue (1): 176-182.doi: 10.3773/j.issn.1005-264x.2008.01.020

• Research Articles • Previous Articles     Next Articles

BIOLOGICAL PROPERTIES AND ENZYMATIC ACTIVITY OF ARABLE SOILS AFFECTED BY LONG-TERM DIFFERENT FERTILIZATION SYSTEMS

LIU En-Ke1,3; ZHAO Bing-Qiang1,3*; LI Xiu-Ying1; JIANG Rui-Bo1; LI Yan-Ting; HWAT Bing So2   

  1. 1Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2 School of Land and Food Sciences, University of Queensland, Brisbane, Queensland 4072, Australia; 3 Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Online:2008-01-30 Published:2008-01-30
  • Contact: ZHAO Bing-Qiang

Abstract: Aims Cropping practices and fertilizer/organic matter application affects the soil microbial growth and activity. In china, only few studies have been conducted on the influence of long-term fertilizer and organic matter with fertilizer application on the soil biological properties. Our objective was to study the changes in soil biological and biochemical characteristics under a long-term (15 years) field experiment involving fertility treatments (inorganic fertilizers and organic matter with fertilizers) and two crop rotation systems.
Methods In 1990, thirteen different treatments were established in the Drab Fluvo-aquic soil in Beijing for the long-term experiment. Six treatments werechosen in this study. Four were in a wheat-maize rotation receiving no fertilizer (CK), mineral fertilizers (NPK), mineral fertilizers plus farmyard manure (NPKM) and mineral fertilizers with maize straw incorporated (NPKS). One was in a wheat-maize/wheat-soybean rotation receiving NPK (NPKF). The other was abandoned arable land (CK0) growing weeds. The amount of chemical fertilizer per year was N 150 kg•hm-2, P2O5 75 kg•hm-2, K2O 45 kg•hm-2, manure 22.5 Mg•hm-2 and maize straw 2.25 Mg•hm-2. Established methods were used to analyze soil enzymes and soil physical and chemical characteristics. Analysis was done using an integrative method combining correlation and component analyses in SPSS. Important findings The soil organic C (SOC) and total N (STN) content, microbial biomass C (SMB-C) & N (SMB-N), activities of soil invertase, phosphatase and urease, and the ratio of SMB-C/SOC and SMB-N/STN were found higher in long-term (15 years) abandoned arable land than those in cultivated arable land soils. However, the soil metabolic quotient, pH value and bulk density of fallow soil were lower than those in cultivated arable land soils. The soil nutrient concentration, microbial biomass C & N, activities of soil invertase, phosphatase and urease, were higher in treatments with fertilizer application
(NPK, NPKM, NPKS and NPKF) compared to no fertilizer application treatment (CK). The above soil parameters were also found higher in wheat-maize/wheat-soybean rotation cropping system compared to continuous wheat-maize cropping system. Among the fertilizer application treatments (NPK, NPKM, NPKS and NPKF), NPKM had relative higher soil nutrient concentration, microbial biomass C & N, and enzyme activities compared to other fertilizer application treatments. However, the soil metabolic quotient, pH value and bulk density of NPKM were lower than them.

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[1] . [J]. Chin Bull Bot, 1994, 11(专辑): 19 .
[2] Xiao Xiao and Cheng Zhen-qi. Chloroplast 4.5 S ribosomol DNA. II Gene and Origin[J]. Chin Bull Bot, 1985, 3(06): 7 -9 .
[3] CAO Cui-LingLI Sheng-Xiu. Effect of Nitrogen Level on the Photosynthetic Rate, NR Activity and the Contents of Nucleic Acid of Wheat Leaf in the Stage of Reproduction[J]. Chin Bull Bot, 2003, 20(03): 319 -324 .
[4] SONG Li-Ying TAN Zheng GAO Feng DENG Shu-Yan. Advances in in vitro Culture of Cucurbitaceae in China[J]. Chin Bull Bot, 2004, 21(03): 360 -366 .
[5] . [J]. Chin Bull Bot, 1994, 11(专辑): 76 .
[6] LI Jun-De YANG Jian WANG Yu-Fei. Aquatic Plants in the Miocene Shanwang Flora[J]. Chin Bull Bot, 2000, 17(专辑): 261 .
[7] . [J]. Chin Bull Bot, 1994, 11(专辑): 8 -9 .
[8] Yunpu Zheng;Jiancheng Zhao * ;Bingchang Zhang;Lin Li;Yuanming Zhang . Advances on Ecological Studies of Algae and Mosses in Biological Soil Crust[J]. Chin Bull Bot, 2009, 44(03): 371 -378 .
[9] Zili Wu, Mengyao Yu, Lu Chen, Jing Wei, Xiaoqin Wang, Yong Hu, Yan Yan, Ping Wan. Transcriptome Analysis of Physcomitrella patens Response to Cadmium Stress by Bayesian Network[J]. Chin Bull Bot, 2015, 50(2): 171 -179 .
[10] XU Zhen-Zhu, ZHOU Guang-Sheng, XIAO Chun-Wang, WANG Yu-Hui. INTERACIVE EFFECTS OF DOUBLED ATMOSPHERIC CO2 CONCENTRATIONS AND SOIL DROUGHT ON WHOLE PLANT CARBON ALLOCATION IN TWO DOMINANT DESERT SHRUBS[J]. Chin J Plan Ecolo, 2005, 29(2): 281 -288 .