Ảnh hưởng của giá thể lên sinh trưởng và năng suất măng tây (Asparagus officinalis L.) trong điều kiện thí nghiệm nhà màng=Effects of growing substrates on growth and yield of asparagus (asparagus officinalis l.) under the greenhouse condition

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Tác giả: Minh Sang Bùi, Văn Thế Bảo Mai, Trường Trinh Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Nông nghiệp và Phát triển nông thôn, 2024

Mô tả vật lý: tr.20-30

Bộ sưu tập: Báo, Tạp chí

ID: 476011

Thêm vào giỏ

Asparagus (Asparagus officinalis L.) is a nutritious food, has high economic value, and is suitable for sustainable agricultural development. However, in the Mekong delta region, the asparagus yield is still low due to disavantage of soil properties and high-water level. The study was conducted to select the optimal growing substrate amended with arbuscular mycorrhizal fungi for growing the asparagus under the greenhouse condition. The experiment was set up as a completely randomized design with 7 treatments and five replicates for each treatment. Experimental results showed that the treatment 3XB (4: 1: 1: 4) with 40% of coir by-products compost mixed with AMF from maize field + 10% sand + 10% rice husk ash + 40% soil enhanced the growth and yield of the asparagus. The yield of the asparagus in this treatment significantly increased by 85.24% compared to that of the control treatment with traditional cultivation methods. Research results showed that the growing substrate of 40% coir by-products compost mixed with AMF + 10% sand + 10% rice husk ash + 40% soil was a good growing substrate for growing the asparagus under the greenhouse condition.Măng tây (Asparagus officinalis L.) là loại thực phẩm giàu dinh dưỡng, có giá trị kinh tế cao và phù hợp để phát triển nông nghiệp bền vững. Tuy nhiên, ở đồng bằng sông Cửu Long, sản lượng măng tây vẫn còn thấp do điều kiện thổ nhưỡng và mực thủy cấp cao. Nghiên cứu được thực hiện nhằm tuyển chọn công thức phối trộn giá thể có bổ sung nấm rễ nội cộng sinh AMF giúp cải thiện sinh trưởng và năng suất măng tây trong điều kiện canh tác nhà màng. Thí nghiệm được bố trí hoàn toàn ngẫu nhiên với 7 nghiệm thức và 5 lần lặp lại cho mỗi nghiệm thức. Kết quả cho thấy, giá thể sinh học 3XB (4: 1: 1: 4) có nguồn gốc từ 40% phụ phế phẩm trồng dưa lưới ủ hoai phối trộn với nấm rễ AMF + 10% cát + 10% tro trấu + 40% đất mặt đã hỗ trợ sinh trưởng, phát triển và năng suất măng tây. Khối lượng chồi măng tây tươi ở nghiệm thức này tăng 85,24% và khác biệt có ý nghĩa thống kê so với nghiệm thức đối chứng canh tác theo phương pháp truyền thống. Sự tận dụng phụ phế phẩm trồng dưa lưới ủ hoai kết hợp với chủng nấm rễ AMF phối trộn cát, tro trấu và đất theo tỉ lệ (4: 1: 1: 4) làm giá thể trồng măng tây có tiềm năng ứng dụng trong điều kiện canh tác nhà màng.

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