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   <subfield code="b">Luận văn tốt nghiệp Cao học chuyên ngành: Hệ thống Nông nghiệp</subfield>
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   <subfield code="a">Sản xuất nông nghiệp tại xã Trung Ngãi có xu hướng đổi mới về lúa hàng hóa “chất lượng cao”, bước đầu mang lại hiệu quả tích cực với sản phẩm lúa “Tím thảo dược”. Tuy nhiên, hiệu quả sản xuất giống lúa này chưa được đánh giá, vì vậy đề tài “Đánh giá hiện trạng sản xuất và tiêu thụ lúa Tím thảo dược tại xã Trung Ngãi, huyện Vũng Liêm, tỉnh Vĩnh Long” được thực hiện. Phỏng vấn được thực hiện tại 90 nông hộ, trong đó 30 hộ sản xuất giống IR50404, 30 hộ sản xuất giống OM5451 và 30 hộ sản xuất giống lúa Tím thảo dược. Ngoài ra còn phỏng vấn công chức phụ trách nông nghiệp ở địa phương, Hợp tác xã và phỏng vấn các đối tượng tiêu dùng gạo ở nông thôn, khu công nghiệp đến cán bộ viên chức, quán cơm và nhà hàng để tìm hiểu về loại, lượng gạo tiêu dùng, chất lượng mong muốn. Các số liệu điều tra được phân tích theo phương pháp thống kê mô tả, phân tích biến động (ANOVA) với kiểm định Duncan ở mức độ 5%.</subfield>
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