Effects of long-term fertilization on soil microorganism and its role in adjusting and controlling soil fertility

Abstract

Abstract: To clarify the relationships between soil microorganisms and soil fertility under the condition of long-term fertilization,a 12-year fertilization experiment was installed on a fluvo-aquic soil,and the amount of soil microorganisms and the content of soil nutrients were determined and analyzed.The results showed that chemical fertilizers combined with organic manure could significantly improve soil fertility and increase the amount of soil microorganisms.Organic manure was obviously superior to corn straw in improving soil fertility.The correlation between soil microorganisms and soil fertility was significant.A positive correlation was found between the amount of bacteria and azotobacteria and the contents of organic matter,total N,alkalified N,total P and available P.The relationship between the amount of fungi and actinomycetes and the content of soil nutrients was not obvious.

Key words: Long-term fertilization, Soil microorganism, Soil fertility

CLC Number:

S154.36

SUN Ruilian, ZHU Lusheng, ZHAO Bingqiang, ZHOU Qixing, XU Jing, ZHANG Fudao. Effects of long-term fertilization on soil microorganism and its role in adjusting and controlling soil fertility[J]. Chinese Journal of Applied Ecology, 2004, (10): 1907-1910.

References

[1] Bai Q-Y ( 白清云 ). 1997. Chemical evaluation of soil-microbial communities and structures. Agro-Environ Prot (农业环境保护), 16 (6) :252～256(in Chinese)
[2] Dou X-T ( 窦新田 ). 1988. Research on Soybean Rhizobium Reagents and Their Application. Haerbin: Heilongjiang Science and Technology Press. (in Chinese)
[3] He Z-L(何振立),Zhou Q-X(周启星), Xie Z-M(谢正苗). 1998.Soil-Chemical Balances of Pollution and Beneficial Elements. Beijing:China Environmental Science Press. (in Chinese)
[4] Kennday AC. 1995. Microbial characteristics of soil quality. J Soil Water Cony, 50:243～248
[5] Liu X-L(刘杏兰), Gao Z(高宗), Liu C-S(刘存寿), et al.1996.Orientation study on yield-increasing effects of organic-inorganic fertilizer mixing application and its influences on soil fertility.Acta Pedol Sin (土壤学报), 33(2): 138～147(in Chinese)
[6] Nanda SK, Dss PK, Behera B. 1998. Effects of continuous manuring on microbial population, ammonification and CO₂ evolution in a rice soil. Oryza, 25(4) :413 ～416
[7] Nanjing Institute of Soil Science of Chinese Academy Sciences( 中国科学院南京土壤研究所). 1981. Physical and Chemical Analyscs of Soils. Shanghai: Shanghai Science and Technology Press. 62～ 142(in Chiense)
[8] Nanjing Institute of Soil Science of Chinese Academy Sciences( 中国科学院南京土壤研究所 ). 1985. Soil-Microbial Methods. Beijing: Science Press. (in Chinese)
[9] Ndayeyamiye A, Cote D. 1989. Effect of long-term pig slurry and solid cattle manure application on soil chemical and biological properties. Can J Soil Sci, 69 (1): 39～ 47
[10] Shi J-P(史吉平). 1998. Influences of long-term fertilizer application on soil organic matter and biological characters. Soil Fert (土壤肥料), (3) :7～ 11(in Chinese)
[11] Srivastava SC, Singh JS. 1991. Micronbial C, N and in dry tropical forest soils: Effects of alternate land-use and nutrient flux. Soil Biol Biochem, 23(2): 117 ～ 124
[12] Sun B(孙波). 1997. Soil quality and sustainable environment Ⅲ.Biological indexes of soil-quality assessment. Soil ( 土壤 ), 29 ( 5 ):225 ～ 234 (in Chinese)
[13] Sun T-H(孙铁珩), Zhou Q-X(周启星), Li P-J(李培军). 2001.Pollution Ecology. Beijing: Science Press. (in Chinese)
[14] Svirskiene A, Tarvidas J. 1995. Survey of investigation of the biological activity of neutral loamy soil in cultivated pastures. Lietuvos Zemdirbystes Institito Mokslo Darbai, 43:109 ～ 119
[15] WangX(王新),ChenT(陈涛),LiangR-L(梁仁禄),etal.2002. Effects of land utilization of sewage sludge on crops and soils.Chin J Appl Ecol ( 应用生态学报 ), 13(2): 163 ～ 166(in Chinese)
[16] Warkentin BP. 1995. The concept of soil quality. J Soil Water Conv, 50:226～228
[17] Yuan L(袁玲),Yang B-J(杨邦俊). 1997.Effects of long-term fertilization on enzymatic activities and transformation of nitrogen and phosphorus in soil. Plant Nutr Fert Sci ( 植物营养与肥料学报), 3(4) :300～305(in Chinese)
[18] Zhou Q-X(周启星). 1995. Biogeochemistry of nutrient elements.In:Zhang F-S(张福锁), eds. New Trends in Soil and Plant Research. Beijing: China Agricultural Press. 213 ～ 233 (in Chinese)
[19] Zhou Q-X(周启星), Sun S-J(孙顺江). 2002. International trends of applied ecology and its future development in China. Chin J Appl Ecol(应用生态学报), 13(7) :879～884(in Chinese)
[20] Zhou Q-X(周启星), Sun T-H(孙铁珩). 2000. Current situation of pollution eco-chemistry and its prospects. Chin J Appl Ecol (应用生态学报), 11(5) :795～798(in Chinese)