200658191935 - 20%- 50% Alternation brassica Alternaria...

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Unformatted text preview: 20%- 50% Alternation brassica Alternaria brassicola (disease cycle and epidemic factor) 3 5 (disease cycle and epidemic factor)...
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This note was uploaded on 12/11/2011 for the course AGRICULTUR agricultur taught by Professor Talin during the Summer '06 term at Tianjin University.

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200658191935 - 20%- 50% Alternation brassica Alternaria...

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