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National legislation on fertilizers in China
Fertilizer
Chemical fertilizer
Biofertilizer
Bio-inoculum: Microorganisms
Bio-fertilizer: Organic fertilizer+Microorganism
 


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Types of bio-fertilizers


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Registration procedures
Sample of product

Identification of microorganisms

Toxicology test

Quantification of microorganisms

Chemical and physical analysis

Agronomical biotests

License

Quality monitoring
 


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Development of biofertilizer production in China
Year
Producer
number
Total
product
(1000T)
Type of
products
Number of
Products
registered
1995
110
100
4
/
1997
180
400
7
8
1999
280
900
8
59
2001
350
1.500
10
149
2002
400
2.000
11
252

 


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Distribution of Biofertilizer products in China (2002)
 


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Plants
Average yield increase by biofertilizer application
 


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Multi bacteria bio-fertilizer


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Microorganism used for composting


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Corn production – a photo of Maize plant inoculated with AM fungi


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Biocontrol of cucumber blight by AM fungi


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Problems
Quality unstable: In 2002 check 70% products met the quality requirements.
Low profit: about 60% producers got profit
Poor conditions for production: most producers are small not well equipped
Effectiveness unstable under varying conditions


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Some biofertilizer products used in China
1970’ 5406 microorganism producing gibberellins
1980’ Yield increasing microorganisms PGPR
P and K mobilizing microorganisms
1990’ EM
Straw decomposing microorganisms Photosynthesis promoting bacteria
Water cleaning microorganism
2000’ Pollutant degradation microorganisms
Mycorrhizal fungi


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