NGHIÊN CỨU ẢNH HƯỞNG CỦA MẬT ĐỘ TRỒNG CÂY THẠCH ĐEN ĐẾN SINH TRƯỞNG VÀ NĂNG SUẤT TẠI HUYỆN TRÀNG ĐỊNH, TỈNH LẠNG SƠN

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Tác giả: Thiện Khánh Dương, Duy Đăng Nguyễn, Thế Hùng Nguyễn, Thùy Giang Nguyễn, Văn Thuần Nguyễn Thị Trang Nguyễn, Viết Hưng Nguyễn

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2022

Mô tả vật lý: tr.99-103

Bộ sưu tập: Metadata

ID: 332414

Thêm vào giỏ Liên kết toàn văn

Cây Thạch đen là loài cây thân thảo được trồng để chế biến ra nhiều loại sản phẩm như: bột thạch, mặt hàng giải khát, chiết xuất các hoạt chất cho ngành công nghiệp dược phẩm... Nghiên cứu được tiến hành vào vụ Hè Thu năm 2019 tại huyện Tràng Định, tỉnh Lạng Sơn với mục tiêu xác định mật độ trồng phù hợp cho thâm canh cây Thạch đen. Thí nghiệm được trồng gồm 6 công thức mật độ được ký hiệu từ MD1 đến MD6
tương ứng với: 100.000 cây/ha (khoảng cách 50 x 20 cm), 80.000 cây/ha (khoảng cách 50 x 25 cm), 100.000 cây/ha (khoảng cách 40 x 25 cm), 125.000 cây/ha (khoảng cách 40 x 20 cm), 133.333 cây/ha (khoảng cách 50 x 15 cm), 166.667 cây/ha (khoảng cách 40 x 15 cm). Kết quả nghiên cứu chỉ ra mật độ MD3 cho chiều dài thân cây cuối cùng, năng suất thân lá và hiệu quả kinh tế là tối ưu nhất so với các công thức còn lại. Ở mật độ trồng này, chiều dài thân cây cuối cùng đạt 57,53 cm
số cành khoảng 7-8 cành/cây, năng suất thân lá đạt 65,33 tấn/ha và cho hiệu quả kinh tế tới 89,608 triệu VND/ha.Mesona chinensis Benth. is a herbaceous plant that brings us many useful products, such as jelly powder, beverage products, extracting active ingredients for the pharmaceutical industry, etc. This study was conducted to determine the optimal planting density for intensive farming of Mesona Chinensis Benth. Trang Dinh district, Lang Son province. The experiment was planted in the summer-autumn crop of 2019 with 6 density formulas that was denoted as MD1 to MD6
100,000 plants/ha (50 x 20 cm), 80,000 plants/ha (50 x 25 cm), 100,000 plants/ha (40 x 25 cm), 125,000 plants/ha (40 x 20 cm), 133,333 plants/ha (50 x 15 cm), 166,667 plants/ha (40 x 15 cm), respectively. The results showed that the plant height, leaf yield, and economic efficiency of formula 3 were the highest. In particular, the 3rd fomula has the plant height of 57.53 cm and around 7-8 branches/plants. It was the highest in stem yield, reached to 65.33 tons/ha and an economic efficiency of 89,608 million VND/ha.

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