NGHIÊN CỨU MỘT SỐ BIỆN PHÁP TƯỚI NƯỚC TRONG SẢN XUẤT CÂY MĂNG TÂY XANH (ASPARAGUS OFFICIALIS L.) TẠI HUYỆN HOẰNG HÓA, TỈNH THANH HÓA

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Tác giả: Thị Phượng Lê, Văn Hoan Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Hồng Đức, 2023

Mô tả vật lý: tr.67

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ID: 339518

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Nghiên cứu nhằm mục đích so sánh đánh giá và xác định được phương pháp tướinước hiệu quả nhất phục vụ sản xuất cây măng tây xanh. Thí nghiệm được thực hiện trongnăm 2021, tại huyện Hoằng Hóa, tỉnh Thanh Hóa, với 3 công thức tưới gồm công thức tướirãnh (đối chứng), công thức tưới nhỏ giọt, công thức tưới phun mưa, tương ứng với 3 môhình, mỗi mô hình 500 m2. Kết quả nghiên cứu cho thấy 3 phương pháp tưới nước khácnhau có ảnh hưởng rõ rệt đến sinh trưởng, phát triển, yếu tố cấu thành năng suất và năngsuất cây Măng tây xanh. Cụ thể ở công thức tưới nhỏ giọt chiều cao cây măng, mật độcây/khóm, đường kính thân, chiều dài mầm măng cao hơn công thức tưới phun mưa và caohơn hẳn công thức đối chứng. Đặc biệt, công thức tưới nhỏ giọt cho năng suất cao nhất đạt21,2 tấn/ha, công thức tưới phun mưa năng suất đạt 18,8 tấn/ha, thấp nhất là công thứctưới rãnh chỉ đạt 16,9 tấn/ha. Về hiệu quả kinh tế, công thức tưới phun mưa cho giá trị lãithuần cao nhất đạt 517 triệu/ha/năm, tiếp đến là công thức tưới nhỏ giọt đạt 410triệu/ha/năm và thấp nhất là công thức tưới rãnh đạt 330 triệu/ha/năm.The purpose of this study is to compare, evaluate and determine the most effectiveirrigation method for green asparagus production. The experiment was carried out in 2021, in Hoang Hoa district, Thanh Hoa province, with 3 irrigation methods including furrowirrigation (the control), drip irrigation, and sprinkler irrigation, corresponding to 3 modelsof 500m2 each. The study results showed that 3 irrigation methods had different effects onthe growth, development, yield-forming components and the yield of the green asparagus.Specifically, with drip irrigation method, the height of asparagus shoots, stem number/aclump, stem diameter, and shoot length were higher than those of sprinkler irrigation andsignificantly higher than those of furrow irrigation method. In particular, the drip irrigationprovided the highest yield of 21.2 tons/ha, the sprinkler irrigation yielded 18.8 tons/ha, andthe lowest yield was only 16.9 tons/ha for furrow irrigation. In terms of economic efficiency,the sprinkler irrigation method gave the highest net profit of 517 million VND/ha/year,followed by the drip irrigation formula with 410 million VND/ha/year, and the lowest profitcame to the furrow irrigation formula with 330 million VND/ha/year.

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