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 46(2022) Trang: 473–494
Tạp chí: JOURNAL OF PLANT NUTRITION

In rice-shrimp farming systems, the level of sodium that shrimp are able to grow may create an adverse environment for rice. This research aimed to isolate purple nonsulfur bacteria (PNSB) from rice-shrimp fields and select strains that were resistant to H+, Al3+, Fe2+ and Mn2+,and can produce plant growth promoting substances such as 5-aminolevulinic acid, exopolymeric substances, indole-3-acetic acid and siderophores. The selected bacteria were applied in soil pot experiment to determine their ability to enhance rice growth and yield. From 63 PNSB isolated from 21 paddy fields of rice-shrimp systems, four strains were selected for their properties as biofertilizers and plant growth promoters (PGP). They were all identified as strains of Luteovulum sphaeroides. A randomized complete block design incorporating six treatments was used to investigate the ability of the four PNSB strains to ameliorate rice growth and yield in saline acidic soil with saline water irrigation at 4‰. PNSB cultures at 1.90 x 105 CFU g-1 dry soil weight were applied three times, along with normal chemical fertilizers, and all monitored parameters of rice growth and grain yield significantly improved in soil with a toxic Al3+ content of 10.8 meq 100 g-1. A mixed four cultures most effectively increased grain yield (86.8%) compared with no applied PNSB. Remediation of the pot soil was exhibited in decreased exchangeable Na in soil and proline content in leaves. The four PNSB could act as biofertilizers, PGP and bioremediators with potential to enhance rice yield in rice-shrimp systems for sustainable rice cultivation.

Các bài báo khác
Số tạp chí 20(2022) Trang: 645-657
Tạp chí: Veterinary Integrative Sciences
Số tạp chí 0(2022) Trang: 1-7
Tạp chí: International Journal of River Basin Management
Số tạp chí 19(2022) Trang: 1-12
Tạp chí: Trends in Science (Formerly known as Walailak Journal of Science and Technology)
Số tạp chí 5(2022) Trang: 271-281
Tạp chí: FINANCIAL AND CREDIT ACTIVITY: PROBLEMS OF THEORY AND PRACTICE
Số tạp chí 13(2022) Trang: 209-215
Tạp chí: International Journal of Environmental Science and Development


Vietnamese | English






 
 
Vui lòng chờ...