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 2022
Số tạp chí 13(2022) Trang:
Tạp chí: Agronomy

Mung bean residues stimulate the hatching of soybean cyst nematode (SCN). In our previous study, combined incorporation of mung bean residues and biochar into soil can be effective in suppression of the soybean cyst nematode (SCN), Heterodera glycines, in the upper layer soil. However, there are no data available as to whether such effects are transmissible, and could for example be manifest in subsoil zones where such incorporation is confined to topsoils, via water-based pathways. We evaluated the effects of leachate passage from a biochar-amended soil in an upper soil zone to a lower zone in a microcosm-based system, upon a range of physicochemical properties and density of SCN. Disturbed soil was filled in a total of 9 cylindrical cores with two layers. The upper layer (0–15 cm) was amended with biochar at rates equivalent to 0, 0.3% or 1.8%, with bulk density set at of 1.1 g cm−3. The lower layer (15–25 cm) without biochar amendment was compacted to 1.2 g cm−3. Mung beans were grown for two weeks and incorporated into the upper layer. Water was surface-applied to the cores 4, 6, and 8 weeks after mung bean incorporation. After 16 weeks, the upper and lower layer soils were separately collected and assayed. The presence of biochar in the upper layer reduced the abundance of free-living nematodes, mainly bacterivorous, but increased that of a predator genus Ecumenicus in this zone. In the lower layer of soil under a biochar-amended upper layer, available P and soluble cations were increased as were abundances of total nematodes including Ecumenicus, resulting in greater maturity index, basal and structure indices. Notably, SCN density was decreased in lower zones by more than 90% compared to zero-biochar controls. This demonstrates that the effects of biochar upon soil properties, including impacts on biota and plant pathogens, are transmissible.

Các bài báo khác
Số tạp chí 9(2022) Trang: 313-324
Tạp chí: Journal of Asian Finance, Economics and Business
Số tạp chí 1(2022) Trang: 88-95
Tạp chí: 2022 International Conference on Control, Robotics and Informatics (ICCRI)
Số tạp chí 1(2022) Trang: 1-19
Tạp chí: International Journal of Computational Intelligence and Applications
Số tạp chí 2(2022) Trang: 779696-779713
Tạp chí: Frontiers in Space Technologies
Số tạp chí 132(2022) Trang: 53-59
Tạp chí: Journal of Animal Science and Technology
Số tạp chí 34(2022) Trang: 1-5
Tạp chí: Livestock for Rural Development
Số tạp chí 2(2022) Trang: 168–185
Tạp chí: International Journal of TESOL & Education
Số tạp chí 3(2022) Trang:
Tạp chí: FOSTER: Journal of English Language Teaching
Số tạp chí 3(2022) Trang: 34-40
Tạp chí: IAR Journal of Humanities and Social Science
Số tạp chí 2(2022) Trang: 74-95
Tạp chí: ELE Reviews: English Language Education Reviews
Số tạp chí 47(2022) Trang: 138-145
Tạp chí: Journal of the Indonesian Tropical Animal Agriculture


Vietnamese | English






 
 
Vui lòng chờ...