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wo men xu yao you ti qian liang de ji shu -- yu nong guan zhu yu xi ai de yang zhi zhi shi yu ji shu
Author(s): 
Pages: 46-46
Year: Issue:  4
Journal: Heilongjiang Fisheries

Abstract: “现如今螃蟹养殖每亩蟹苗的投放数量最合适是多少头?”这是前不久江苏溧阳市埭头镇开办的水产养殖训练班上,渔农张大伯向授课老师的提问。
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