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
Tạp chí quốc tế 2015
Số tạp chí 31(2)(2015) Trang: 313-320
Tạp chí: Soil Use and Management

In the Mekong Delta, alluvial clay soils have been used intensively over many generations for rice monoculture. Currently, farmers are confronted by problems of declining land productivity. Rotations comprising rice and upland crops can increase soil quality, but appropriate cropping systems for paddy soils have received relatively little attention. We therefore established a multiyear field experiment to evaluate the long-term effects of cropping systems with different rotations on soil chemical quality. Systems laid out in a randomized complete block design with four replications were as follows: (i) traditional rice monoculture with three rice crops per year (R-R-R), (ii) rotation with two rice crops and maize (R-M-R), (iii) rotation with two rice crops and mung bean (R-Mb-R) and (iv) rotation with one rice crop and two upland crops – mung bean and maize (R-Mb-M). We hypothesized that systems with rotations of upland crops and their temporary beds improve chemical quality of paddy rice soil. Soil chemical parameters were determined to better understand and evaluate the sustainability of the cropping systems. Results showed an improvement in soil chemical quality for cropping systems with rotations of rice and mung bean or maize grown on temporary beds (R-M-R, R-Mb-R and R-Mb-M), particularly the content of soil organic carbon and a presumed hydrolysable labile carbon fraction compared with rice monoculture. Less pronounced improvements in EC, CEC and total acidity were also found with inclusion of upland crops. Cropping systems of rice with upland crops improved rice grain and straw yield in subsequent season in contrast with rice monoculture.

Các bài báo khác
Số tạp chí 50(2015) Trang: 1945-1952
Tạp chí: International Journal of Food Science and Technology
Số tạp chí 79(2015) Trang: 74-81
Tạp chí: Composites Part A: Applied Science and Manufacturing
Số tạp chí 126(2015) Trang: 5412-5419
Tạp chí: Optik - International Jounal for Light and Electron Optics
Số tạp chí 10(1)(2015) Trang: 47-55
Tạp chí: Journal of Electrical Engineering & Technology
Số tạp chí 8(2015) Trang: 1-10
Tạp chí: Asian Journal of Agricultural Extension, Economics & Sociology
Số tạp chí 0(2015) Trang: 1-16
Tác giả: Võ Hồng Tú
Tạp chí: Environment, Development and Sustainability
Số tạp chí 15(2015) Trang:
Tạp chí: Global Journal of Science Frontier Research: D Agriculture and Veterinary
Số tạp chí First Online: 28 December 2015(2015) Trang: 1-15
Tạp chí: Cultural Studies of Science Education
Số tạp chí Vol. 4, No. 09, December(2015) Trang: 156-163
Tạp chí: European Journal of Business and Social Sciences
Số tạp chí Volume 77, Part 3, November 2015,(2015) Trang: Pages 657–669
Tạp chí: Food Research International
Số tạp chí Volume 117, Issue 11, , November 2015(2015) Trang: pages 1700–1713
Tạp chí: European Journal of Lipid Science and Technology
Số tạp chí 10.1021/acs.jnatprod.5b00634(2015) Trang:
Tạp chí: Journal of Natural Product
Số tạp chí DOI: 10.1080/00397911.2015.1112918(2015) Trang:
Tạp chí: Synthetic Communications

Vietnamese | English

Vui lòng chờ...