NGHIÊN CỨU XÂY DỰNG MÔ HÌNH CANH TÁC SINH THÁI BỀN VỮNG TRÊN CHÂN ĐẤT TRŨNG HUYỆN HÀ TRUNG

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Hoài Thanh Lê, Hữu Cần Lê

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học - Trường Đại học Hồng Đức, 2020

Mô tả vật lý: tr.13

Bộ sưu tập: Metadata

ID: 323386

Thêm vào giỏ Liên kết toàn văn

Building an ecological farming model that synthesizes rice - fish - duck on low-lying land, is one of the farming models in the direction of sustainable development, throughreducing the generation of pests harming rice and integrated pest management. The release of ducks and fish into rice fields has a positive effect on the growth, development, productivity and economic efficiency of rice plants on low-lying rice land of Ha Trung district, Thanh Hoa province: Growth time , development through several stages and some indicators such as number of main leaves/ stem, length of leaf, length of cotton of rice varieties have little difference compared to varieties of the same type when monoculturing of rice. The parameters of plant height, maximum number of branches/ clump of rice varieties in the experimantal formula were higher than the same variety in the control formula. Reducing the generation and damage of pests and yellow snails to rice plants. Having a positive impact on the factors constituting yield and rice yield between the experimental formula and the control formula. The model of ecological farming ofrice - fish - duck increased the economic efficiency clearly compared to the geographic location. Net profit reached 114.63 million VND/ha/year compared with rice monoculture of 44.72 million VND/ ha/ year, an increase of 2.56 times. MRR and MBCR indicators are significant (MRR = 116 and MBCR = 2.16).Xây dựng mô hình canh tác sinh thái tổng hợp lúa - cá - vịt trên chân đất trũng, là một trong các mô hình canh tác theo hướng phát triển bền vững, thông qua việc làm giảm sự phát sinh và gây hại của các đối tượng sâu hại đối với cây lúa và quản lý dịch hại mang tính tổng hợp. Việc thả vịt, thả cá vào ruộng lúa có ảnh hưởng tích cực đến sinh trưởng, phát triển, năng suất và hiệu quả kinh tế của cây lúa trên đất lúa vùng trũng thấp của huyện Hà Trung, tỉnh Thanh Hóa: Thời gian sinh trưởng, phát triển qua các giai đoạn và một số chỉ tiêu như số lá/thân chính, chiều dài lá đòng, chiều dài bông của các giống lúa có sự sai khác không đáng kể so với các giống cùng loại khi độc canh cây lúa. Các chỉ tiêu về chiều cao cây, số nhánh tối đa/khóm của các giống lúa ở công thức thí nghiệm (TN) đều đạt cao hơn so với cùng loại giống ở công thức đối chứng (ĐC). Giảm sự phát sinh và gây hại của sâu hại và ốc bưu vàng đối với cây lúa
Có tác động tích cực đến các yếu tố cấu thành năng suất và năng suất lúa giữa công thức thí nghiệm và công thức đối chứng. Mô hình canh tác sinh thái lúa - cá - vịt tăng hiệu quả kinh tế rõ rệt so với đối chứng. Lãi thuần đạt 114,63 triệu đồng/ha/năm so với trồng độc canh lúa là 44,72 triệu đồng/ha/năm, tăng 2,56 lần. Các chỉ tiêu MRR và MBCR đều có ý nghĩa (MRR = 116 và MBCR = 2,16).

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR