NC 70-28-1988 Agriculture Opened Pollination of Corn Seeds Quality Speci fications《农业 玉米种子授粉 质量规范》.pdf

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NY T 1136-2006 挤搓式玉米种子脱粒机 技术条件.pdf

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GB T 23624-2009 玉米种子产地检疫规程.pdf

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NY T 1136-2006 挤搓式玉米种子脱粒机.技术条件.pdf

MSZ 10075-1960 《近交玉米种子的耕种观察》.pdf

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SNI 01-6232 1-2003 Breeder seeds of open pollinated corn (Zea mays)《自由授粉玉米种子 第1部分 分类种子级别》.pdf

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