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  <controlfield tag="008">210402s9999    xx            000 0 und d</controlfield>
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   <subfield code="a">Bước đầu xác định tính kháng của hai chủng rầy nâu ( Nilaparvata lugens stal) đối với hai hoạt chất abamectin và fipronil và đánh giá hiệu quả của một số loại thuốc hóa học tại Vĩnh Long và Cần Thơ :</subfield>
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   <subfield code="b">Luận văn thạc sĩ. Chuyên ngành : Bảo vệ thực vật</subfield>
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   <subfield code="c">Dương Văn Tạo ; Trần Văn Hai, Phạm Kim Sơn (Hướng dẫn khoa học)</subfield>
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   <subfield code="a">Cần Thơ</subfield>
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   <subfield code="b">Trường Đại học Cần Thơ</subfield>
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   <subfield code="a">Xác định hiện trạng, mức độ kháng của rầy nâu đối với hai hoạt chất hai hoạt chất abamectin và fipronil cũng như hiệu quả ngoài đồng ruộng của hai loại thuốc hóa học từ hai hoạt chất này so với các loại thuốc được sử dụng phổ biến.</subfield>
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   <subfield code="a">Insect pests,Agricultural pests,Agricultural Chemicals,Côn trùng gây hại,Sâu bệnh nông nghiệp,Hóa nông</subfield>
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   <subfield code="x">Control,Biological control,Kiểm sóat,Kiểm soát sinh học</subfield>
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   <subfield code="i">Năm</subfield>
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  <datafield tag="980" ind1=" " ind2=" ">
   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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