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Effect of Crop Establishment and Weed Control Method on Productivity of Transplanted aman Rice
Ali, Mohammad,Haque Bir, Md. Shahidul,Rahman, Md. Habibur,Ayesha, Sultana Kaniz,Hoque, Aminul,Harun-Ar-Rashid, Md.,Islam, Md. Rashidul,Park, Kee Woong The Korean Society of Weed ScienceThe Turfgrass So 2018 Weed & Turfgrass Science Vol.7 No.2
This experiment was conducted to find the most suitable crop establishment method and weed management practices for transplanted aman rice in Bangladesh. Rice variety Bangladesh Rice Research Institute (BRRI) dhan44 was used as planting materials where three crop establishment methods ($T_1$: direct wet seeding by drum seeder; $T_2$: hand broadcasting; $T_3$: transplanting) and four weeding options ($W_1$: Hand weeding (HW); $W_2$: BRRI weeder+HW; $W_3$: Herbicide+HW; and $W_4$: no weeding) were tested. Among the crop establishment methods, the highest grain yield ($5.12t\;ha^{-1}$) was obtained with the $T_3$, while the highest benefit cost ratio (BCR) of 2.08 was found in $T_2$. In case of the weed management method, $W_1$ showed superior results on the plant $density/m^2$ (139.66) at 60 days after transplanting (DAT), grain yield ($4.97t\;ha^{-1}$), and BCR (2.03). On the other hand, the highest plant dry matter (36.20 g) at 60 DAT and the highest yield ($6.10t\;ha^{-1}$) were obtained in a $T_3W_1$ combination. The results of this study show that the productivity of rice during aman season could be most significantly increased with the use of transplanting ($T_3$) alone, hand weeding ($W_1$) alone, or a combination of the two methods ($T_3W_1$).
Effect of Crop Establishment and Weed Control Method on Productivity of Transplanted aman Rice
Mohammad Ali,Md. Shahidul Haque Bir,Md. Habibur Rahman,Sultana Kaniz Ayesha,Aminul Hoque,Md. Harun-Ar-Rashid,Md. Rashidul Islam,박기웅 한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.2
This experiment was conducted to find the most suitable crop establishment method and weed management practices for transplanted aman rice in Bangladesh. Rice variety Bangladesh Rice Research Institute (BRRI) dhan44 was used as planting materials where three crop establishment methods (T1: direct wet seeding by drum seeder; T2: hand broadcasting; T3: transplanting) and four weeding options (W1: Hand weeding (HW); W2: BRRI weeder+HW; W3: Herbicide+HW; and W4: no weeding) were tested. Among the crop establishment methods, the highest grain yield (5.12 t ha-1) was obtained with the T3, while the highest benefit cost ratio (BCR) of 2.08 was found in T2. In case of the weed management method, W1 showed superior results on the plant density/m2 (139.66) at 60 days after transplanting (DAT), grain yield (4.97 t ha-1), and BCR (2.03). On the other hand, the highest plant dry matter (36.20 g) at 60 DAT and the highest yield (6.10 t ha-1) were obtained in a T3W1 combination. The results of this study show that the productivity of rice during aman season could be most significantly increased with the use of transplanting (T3) alone, hand weeding (W1) alone, or a combination of the two methods (T3W1).
Avijit Dutta,Chandan Nath,Md. Moktadir Billah Reza,Tridip Das,Eaftekhar Ahmed Rana,Ayesha Sultana,Mohammad Shah Jalal 대한미생물학회 2023 Journal of Bacteriology and Virology Vol.53 No.2
Staphylococcus aureus (S. aureus) not only causes significant loss of livestock pro-duction but also has potential public health risks. This study was conducted withthe objective of characterizing the antibiogram of S. aureus from goats attendinga Teaching Veterinary Hospital in Bangladesh. We aimed to study the spa type,potential virulence factor(s), and the presence of methicillin and vancomycinresistance genes in the isolates. From a total of 200 goat nasal swab samples S. aureus was confirmed by PCR. Antimicrobial susceptibility testing was performedusing the disc diffusion method followed by mecA and vanA gene PCR. Staphy-lococcal protein A (spa) typing was conducted for selected isolates. A set ofmajor virulence determinants, including sea, seb, pvl, and tst were investigatedby PCR. A total 11.5% (n=23) of S. aureus isolates were obtained. Ciprofloxacinresistance was the highest (100%; n=23) followed by cefoxitin (74%; n=17). About 91% of the isolates (n=21) were multidrug-resistant (resistant to ≥3antimicrobial classes). One (6%) isolate was MRSA harboring mecA. Among 13vancomycin-resistant isolates, three (23%) were vanA-positive. Of the virulencegenes screened, sea was recorded in four (17%) isolates. The spa typing of tworandomly selected strains revealed that one isolate belonged to spa type t5259,and the other seemed to be novel. Goats having cutaneous and mucosal lesionshad higher S. aureus carriage (P=0.01) with a significant variation across thebreeds (P= 0.02). This study provides insights into S. aureus strains circulating inthe goat population in Bangladesh.