Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Bài báo - Tạp chí
2022 (2022) Trang: 5747699
Tạp chí: Applied and Environmental Soil Science

Soil acidity is an important factor affecting crop productivity in the tropics. The soil of the Vietnamese Mekong Delta has high acidity, deficient levels of exchangeable bases, and low fertility. This study aimed to evaluate soil amendments’ role in improving soil fertility, soil acidity, and pomelo yield cultivated in raised beds. The field trial was carried out in Hau Giang province consecutively over 3 years from 2018 to 2020. Fours treatments were used, namely, control, biochar (5 ton ha−1 year−1), lime (2 ton ha−1 year−1), and compost (5 ton ha−1 year−1). All treatments applied the same amount of NPK fertilizers at rates of 400 kg N, 300 kg P2O5, and 400 kg K2O ha−1 year−1. Physicochemical properties of the topsoil (0–20 cm) and subsoil (20–40 cm), and fruit yield were investigated. The results showed that biochar or compost application increased soil pH, soil organic matter (SOM), and exchangeable cations, and decreased soil bulk density (BD), improving soil fertility and fruit yield in the raised beds. Applications of biochar or compost resulted in about 1.5-fold higher fruit yield than that of chemical fertilizer alone. The average profit increased to USD 1,672 ha–1 after applying biochar and compost in the three-year experiments. Biochar and compost amendments have a positive effect on reducing soil acidity and soil BD, elevating SOM, and supplying available Ca2+ and Mg2+, improving soil fertility, enhancing fruit yield, and increasing profit.



Các bài báo khác
Số Nông nghiệp 2016 (2016) Trang: 29-37
Tải về
Số 51 (2017) Trang: 31-38
Tải về
Tập 56, Số CĐ Khoa học đất (2020) Trang: 82-87
Tải về
6 (2022) Trang: 68-73
Tạp chí: Tạp chí Khoa học và Công nghệ Nông nghiệp Việt Nam
1012 (2022) Trang: 012039
Tạp chí: IOP Conference Series: Earth and Environmental Science
 


Vietnamese | English






 
 
Vui lòng chờ...