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[J]. Journal of Henan Agricultural Sciences, 2003, 32(12): 22-23.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(7): 14-17.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(7): 21-21.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(9): 23-24.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(6): 12-13.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(6): 13-15.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(6): 17-18.
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[J]. Journal of Henan Agricultural Sciences, 2003, 32(8): 22-23.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(1): 12-13.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(2): 12-14.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(2): 16-18.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(2): 20-20.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(5): 10-12.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(6): 41-41.
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[J]. Journal of Henan Agricultural Sciences, 2002, 31(6): 45-45.
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