Browsing by Author "MAMUN, MD. ABDULLAH AL"

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EFFECT OF ORGANIC AND INORGANIC FERTILIZERS ON THE YIELD AND NUTRIENT UPTAKE OF BRRI DHAN 28
(HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR, 2008-06) MAMUN, MD. ABDULLAH AL; Prof. Md. Mansur Rahman
A field experiment was carried out at the Soil Science Field Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur during the boro season of 2008 to study the effect of organic and inorganic fertilizers on the yield and nutrient uptake of BRRI Dhan 28. The work was laid out in the randomized complete block design (RCBD) with three replications. There were fourteen treatment combinations comprising of different levels of recommended doses of chemical fertilizers and organic manures (cowdung, poultry manure and mustard oil cake) along with control. Cowdung, poultry manure and mustard oil cake were applied 10 days before transplantation and the full doses of TSP, MP, gypsum and zinc sulphate were applied during the final land preparation. Urea was applied in three equal splits at 7, 30 and 60 DAT. The grain and straw yields as well as the yield contributing characteristics like plant height, number of tillers hill’, number of effective tillers hill’, panicle length, number of grains panicle™', number of filled grains panicle’ and 1000 grain weight were significantly influenced due to different treatments. The highest grain (5300) and straw (8700 kg ha’) yields were recorded in the treatment T, (100% RFD) followed by 75% RFD + 25% organic manure. Among the combined application of chemical fertilizers and organic manures, 75% RFD + 25% MOC exerted beneficial effects on yield and yield contributing characteristics of BRRI Dhan 28 compared to cowdung and poultry manure. A significant increase in the NPK contents as well as their total uptake due to combined application of fertilizers and manures were observed. Analyses of post-harvest soil fertility status revealed that the application of organic manures positively influenced the organic matter, total N, available P, exchangeable K, available S, and available Zn contents while all the treatments slightly decreased the soil pH.
GROWTH AND YIELD PERFORMANCE OF TEN SELECTED RICE VARIETIES IN AMAN SEASON
(DEPARTMENT OF AGRICULTURAL BOTANY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY, DHAKA -1207, 2020-06) MAMUN, MD. ABDULLAH AL
An experiment was conducted at the Experimental Field of Agricultural Botany Department, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh, during June, to November, 2019 to evaluate the growth, yield and yield attributing characteristics of ten Aman rice varieties of Bangladesh namely; BRRI dhan 80, BRRI dhan 79, BRRI dhan 70, BRRI dhan 56, BRRI dhan 54, BRRI dhan 53, BRRI dhan 52, BRRI dhan 51, BRRI dhan 41 and BRRI dhan 40. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates. Parameters on, growth parameter viz. plant height and number of tillers hill -1 (at different days after transplanting); yield contributing characters such as effective tillers hill -1 , panicle length, number of grains panicle , filled grains panicle -1 , thousand grain weight, grain yield, straw yield, biological yield and harvest index were recorded. The plant height and number of tillers hill at different days after transplanting varied significantly among the varieties up to harvest, the tallest plant (123.70 cm) was recorded in BRRI dhan 70 and the shortest (81.13 cm) was found in BRRI dhan 41. The maximum number of tillers hill -1 (45.60) was observed in BRRI dhan 70 and the minimum (20.40) in BRRI dhan 52. All of the parameters of yield and yield contributing characters differed significantly at 1% level except grain yield, biological yield and harvest index. The maximum number of effective tillers hill ii -1 (43.76) was recorded in the variety BRRI dhan 70 while BRRI dhan 40 produced the lowest effective tillers hill (17.53). The highest (133.81) and the lowest (42.69) number of filled grains panicle -1 was observed in the variety BRRI dhan 70 and BRRI dhan 40 respectively. Thousand grain weights were the highest (26.45 g) in BRRI dhan 70 and the lowest (18.88 g) in BRRI dhan 53. Grain did not differ significantly among the varieties but numerically the highest grain yield (5.01 t ha ) was found in the variety BRRI dhan 54 and the lowest in BRRI dhan 41 (3.78 t ha -1 -1 -1 -1 -1 ).
HOMESTEAD FARMING KNOWLEDGE OF GARO WOMEN FARMERS
(DEPT. OF AGRICULTURAL EXTENSION & INFORMATION SYSTEM, 2011) MAMUN, MD. ABDULLAH AL
The study was conducted in Arankhola union of Modhupur upazila under Tangail district. Garo women farmers of Modhupur upazila under Tangail district constituted the population of the study. An update list of 418 Garo women thrmers who were related to homestead farming activities was prepared with the help of Sub-Assistaifi Agricultural Officer of these localities. Around one forth (1/4) of the populations were randomly selected as the sample of the study by using random sampling method. Thus, 105 Gary women farmers constituted the sample of the study. A well structured inten'iew schedule was developed based on objectives of the study for collecting information. The researcher himself collected data through personal contact. AboLa half (49.52 percent) of the respondents fell in low knowledge category Followed by very low knowledge (27.62 percent) and medium knowledge (22.86 percent) category in homestead thnning knowledge. Level of education. homestead farm size, annual family income, organizational participation, cosmopoliteness, contact with extension agent and exposure to mass media agricultural programs had significant positive relationships with homestead farming knowledge of Gum women farmers. Age of the Garo women thrmers had significant negative relationship with homestead farming knowledge. Family size and average thmily education had positive but no significant relationships with the homestead Ihrming knowledge of Gait women farmers.
IMPROVEMENT OF BORO SEEDLING STRENGTH AND YIELD THROUGH SEED PRIMING AND SEEDBED SOIL AMENDMENT
(DEPARTMENT OF SOIL SCIENCE, 2022) MAMUN, MD. ABDULLAH AL
A pot experiment was conducted under the net house of Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh, during December 2020 to May 2021, to study on yield performance of a rice variety (BRRI dhan84) as influenced by the effects of seed priming with salicylic acid (SA) and using organic material (Shrimp Shell Powder, SSPd) in the seedbed. Fourteen (14inches) size plastic pots were used in the experiment having height (10.5inches) and diameter (9.5inches). The pots were filled with 10 kg SAU field moist soils having the texture silty clay loam soil. The experiment was laid out in a Completely Randomized Design (CRD) having six treatments (T 1 = 0 μM Salicylic Acid + 0% Shrimp Shell Powder, T = 0 μM Salicylic Acid + 0.25% Shrimp Shell Powder, T 3 2 = 0 μM Salicylic Acid + 0.5% Shrimp Shell Powder, T 4 = 50 μM Salicylic Acid + 0% Shrimp Shell Powder, T = 50 μM Salicylic Acid + 0.25 % Shrimp Shell Powder, T 6 5 = 50 μM Salicylic Acid + 0.5% Shrimp Shell Powder) with twenty four (24) replications. A significant variation was observed in the germination (%), seedlings height, biomass production, seedling strength and chemical properties of the seedbed soils due to the seed priming with SA and application of Shrimp Shell Powder in the seedbed. The maximum germination (79%), seedlings height (24.65cm), seedling fresh weight (593.29mg), seedling oven dry weight (396.14mg), seedling strength (18.08mg cm −1 ), grain yield sundry weight (66.35g pot −1 ), grain yield oven dry weight (58.17g pot −1 ) and straw yield (70.25g pot −1 ) were observed in the treatment T . Otherwise, the minimum germination (61%), seedlings height (19.52cm), seedling fresh weight (239.67mg), seedling oven dry weight (144.84mg), seedling strength (7.42mg cm 6 ), grain yield sundry weight (49.59g pot −1 ), grain yield oven dry weight (43.61 g pot ) and straw weight (51.12g pot −1 ) were recorded in the treatment T (control). Whereas, the maximum level of OC (0.78%), OM (1.34%), pH (6.4), available Phosphorus (39.34 ppm) and available Sulphur (30.36ppm) were recorded in the treatment T 1 . Otherwise, the minimum level of OC (0.64%), OM (1.1%), pH (6.3), available Phosphorus (17.69ppm) and available Sulphur (17.22ppm) were recorded in the treatment T (control). Shrimp Shell Powder increased the level of organic matter in a dose dependent manner. Quality of the rice seedlings were improved due to the application of the organic matter in a dose dependent manner and the treatment T (50μM Salicylic Acid + 0.5 % Shrimp Shell Powder) was the more effective than other treatments. Most of the morphological, yield attributes and grain yield were increased with increasing the dose of Shrimp Shell Powder. Maximum grain yield was observed in T 6 treatment followed by T 5 ,T 4 ,T 3 , T 2 and T (control). So overall result indicated that application of shrimp shell powder in soil has significant impact on growth and yield of BRRI dhan84 and some on chemical properties of soil.
SOME MORPHOLOGICAL OBSERVATION OF VICTORY LOACH, Schistura scaturigina (MCCLELLAND, 1839) IN THE ATRAI RIVER, DINAJPUR, BANGLADESH
(HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR, 2017-12) MAMUN, MD. ABDULLAH AL; Kaniz Fatema
The study was conducted to describe the length-weight relationships (LWRs), condition factors (CFs) and length-length relationships (LLRs) of Schistura scaturigina collected from the Atrai River of Dinajpur, Bangladesh from January 2017 to June 2017. Fish samples were collected using push net (1.50 × 1.00 m2 , mesh size 6 mm) with the help of local fishermen from two stations (JG and KS) at monthly interval. Body size of 1165 individuals ranged from 3.2 to 5.8 cm in length and 0.22 to 1.70 g in weight. The values of slope (b) varied from 2.973 to 3.027 and 2.993 to 3.028 for male and female, respectively where all calculated “b” values were not significantly different (p > 0.05) from expected (b= 3.0) values. Besides, the values of “b” from LWRs indicated isometric growth (b= 3) in all months during study period. The values of Fulton's condition factor (CFf) recorded as 0.86±0.02 to 0.71±0.01 and 0.84±0.01 to 0.71±0.01 for male and female, respectively while the values of relative body weight (BWr) varied from 99.69±0.97 to 101.13±2.51 and 99.87±1.01 to 100.74±0.84 for male and female, respectively. During the study, the values of form factors (a3.0) were recorded as 0.0048 to 0.0086 and 0.0062 to 0.0094 for male and female from both stations (JG and KS) of the Atrai River. In LLRs (among TL, SL, HL and FL), strong relationships were found of TL vs. SL (r2 > 0.898), TL vs. FL (r2 > 0.973), FL vs. SL (r2 > 0.853), HL vs. TL (r2 > 0.525), HL vs. SL (r2 > 0.502) and HL vs. FL (r2 > 0.448) between sexes of this species. Finally, it may be concluded that the findings of this research on S. scaturigina would be baseline information for future research and management.