巴彦淖尔市种子生产现状、存在问题及发展对策

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[1]	. Bettenment of Ryegrass Growing in Krasnozem of South China [J]. Journal of Northern Agriculture, 2005, (1): 11-11.
[2]	. [J]. Journal of Northern Agriculture, 2000, (3): 25-25.

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