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  <leader>01224nam a2200193Ia 4500</leader>
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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="b">Th523</subfield>
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   <subfield code="a">Trần Thị Thu Thủy</subfield>
  </datafield>
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   <subfield code="a">ảnh hưởng thuốc 2,4-D 720DD đến thành phần, mật số côn trùng gây hại và thiên địch trong ruộng lúa tại huyện Châu Thành, Cần Thơ (Vụ Hè Thu và Thu Đông) (Luận án Thạc sĩ Khoa học Nông nghiệp, chuyên ngành Nông học)</subfield>
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   <subfield code="c">Trần Thị Thu Thủy</subfield>
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   <subfield code="a">Cần Thơ</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
   <subfield code="b">Trường ĐH Cần Thơ</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
   <subfield code="c">1997</subfield>
  </datafield>
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   <subfield code="a">Công trình cung cấp những thông tin về ảnh hưởng của thuốc trừ cỏ 2,4-D 720DD, qua các thí nghiệm thực hiện tại huyện Châu Thành, Cần Thơ trong vụ Hè Thu và Thu Đông 1995: 1) Thuốc trừ cỏ 2,4-D 720DD được sử dụng ở nồng độ 0,3</subfield>
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   <subfield code="a">agricultural chemicals,herbicides,insecticides,pesticides,plant, protection of</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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