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  <leader>01199nam a2200217Ia 4500</leader>
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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="a">Ảnh hưởng của chủng vi khuẩn cố định đạm và vi khuẩn hòa tan lân lên năng suất khoai lang ở huyện Bình Tân, tỉnh Vĩnh Long :</subfield>
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   <subfield code="b">Chuyên ngành: sinh thái học</subfield>
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   <subfield code="c">Đặng Thị Thu Thảo ; Nguyễn Hữu Hiệp giáo viên hướng dẫn</subfield>
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   <subfield code="b">Trường Đại học Cần Thơ</subfield>
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   <subfield code="c">2008</subfield>
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   <subfield code="a">Ecology,Sweet potatoes,Khoai lang,Sinh thái</subfield>
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   <subfield code="i">Tuyến</subfield>
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