M Salwa*1 and M A Kashem2
Journal of Sylhet Agricultural University, 2021, Volume 8, Number 2; Pages: 93-98
The experiments were conducted in haor area under the Sunamganj district during the period from November 2018 to March 2019 to observe the effect of planting dates on the yield of three winter vegetables. Experiment included three planting dates viz. 5 November (P1), 15 November (P2), and 25 November (P3), on three vegetables viz. Tomato, Turnip, and Squash were designed in RCBD with three replications. Yield and yield contributing data were recorded. Different planting dates had significant variations for all vegetables. The highest yield of tomato (86.42 t ha-1) was recorded on 5 November planting, and the lowest was 44.03 t ha-1 on 25 November planting. Gross return and net margin also secured the highest value in the first week of November with the highest BCR (5.38). In the case of turnip, similar trends were spotted. The highest gross yield was observed at 24.99 t ha-1 on 5 November planting, with the highest BCR (4.16). The lowest gross yield (22.77 t ha-1) was obtained on 25 November planting with decreasing BCR (3.79). Squash also gave better production on 5 November planting (61.1 t ha-1) with the highest gross return and net margin over other dates. The results revealed that the first week of November found a better time for winter vegetables (Tomato, Turnip, and Squash) cultivation in haor area after the recession of floodwater.
Keywords: Planting date, Yield, Winter vegetables, Gross return, BCR
M Rahman1*, SP Ritu2 and Z Ferdous3
Journal of Sylhet Agricultural University, 2021, Volume 8, Number 1; Pages: 53-63
This research shows how the renowned Cement producing industry could cause minor environmental manipulation all around the factory area although they might partially use both agricultural and unproductive land. The land quality around the factory is not appreciable for farming in an extended way. The nutrients could be restored in the long term process, but it will cause a lot of cash which is not feasible for poor farmers. So for rehabilitation of this area, after collecting clay in a bi-yearly rotation system, the factory authority may deliver the inputs to the corresponding farmers for aquaculture and help to improve single crop growing lands by delivering natural green manure. A brief and specific sustainable clay collection plan and criteria for selecting land and subsequent activity describes in this study. This plan should be followed for ensuring long-term sustainable clay supply within minimum environmental cost.
Keywords: Sustainability, Clay mineral, Nutrient, Yield, Farm friendly Industrialization
SD Shawon, MN Islam, M Biswas and S Sarker
Journal of Sylhet Agricultural University, 2018, Volume 5, Number 1; Pages: 7-14
Experiments on Aus rice were conducted at the Agronomy Research Field of Sylhet Agricultural University, Sylhet and in the farmer’s field of Jaintapur and Gowainghat Upazila, Sylhet to find out the competitiveness of Aus rice varieties against weed infestation. The experiments were carried out within the period of April to August 2014. Five commercial rice varieties viz. BR3, BRRI dhan48, hybrid variety Aloron, BRRI dhan43, Iratom-24 along with three (3) local cultivars Aina Miah, Doom and Kanihati were included in the research field trial. On the other hand, survey of thirty farmer’s field along with researcher’s managed trial were conducted to know the weed situation. In farmer’s field, 5 (five) variety namely BR3, hybrid variety Aloron, BRRI dhan55, BRRI dhan48 and cultivar Aina Miah were included. Here each variety or cultivar considered as treatment. The experiment was laid out in randomized complete block (RCBD) design with three replications. Weed Competitive Index (CI) was calculated on the basis of average yield of all varieties and weed biomass. Result indicated that eight weed species were recorded in the research field trial, whereas 28 weed species were recorded in the farmer’s field trial. The most prominent weeds in the experiment were Monochoria vaginalis, Digitaria sangunalis, Leersia hexandra, Cynodon dactylon etc. The highest weed competitive index was recorded in Aloron (2.27) and the lowest was recorded in Doom (0.42) in the research field. On the other hand, in farmer’s field trial the highest weed competitive index (2.05) was recorded in BRRI dhan48 which was followed by variety Aloron (1.71). The highest grain yield (4.04 t ha-1) was produced by the hybrid variety Aloron which was statistically identical with the variety BRRI dhan48 (3.19 t ha-1) and Iratom-24 (3.06 t ha-1). The hybrid variety Aloron produced the maximum panicle length (24.53 cm) and highest (103.53) grains panicle-1 and lowest (41.87) panicle length was in variety BRRI dhan43. The lowest yield (1.07 t ha-1) was recorded in local cultivar Doom which was at par with BRRI dhan43 (1.32 t ha-1) and local cultivar Kanihati (1.53 t ha-1).
Keywords: Aus rice, varieties/cultivars, growth, yield, hybrid variety Aloron
M A Aziz, M A Kashem, M N H Miah and A F M S Islam
Journal of Sylhet Agricultural University, 2017, Volume 4, Number 2; Pages: 207-212
Pot experiments were conducted at the net house of Department of Soil Science, Sylhet Agricultural University campus, Sylhet during the period from November 2015 to May 2016 and November 2016 to May 2017 to find out the effect of fertilizer on the growth, yield and yield contributing characters of fine boro rice varieties. Two varieties (BRRI dhan50 and BRRI dhan63) and two fertilizer treatments (NPKSZn recommendation and 50% of NPKSZn recommendation) were included in the experiment. The recommended fertilizer dose was NPKSZn @ 138-22.4-63.5-13.5-1.3 kg ha-1. The experiment was laid out in a two factors Completely Randomized Design (CRD) with three replications and continued for consecutive two years. During 2015-16 the tallest plant (70.65 cm) and the higher no. of tillers hill-1 (13.73) was produced by BRRI dhan63 but during 2016-17 the higher no. of tillers hill-1 (15.54) was produced by BRRI dhan63. The tallest plant (70.86 cm and 57.67 cm) and the highest no. of tillers hill-1 (14.11 and 20.06) was produced due to application of NPKSZn as per recommendation. The higher grain yield of 39.20 g pot–1 and 78.21 g pot–1 and straw yield of 66.86 g pot–1 and 95.18 g pot–1 were recorded from the variety BRRI dhan63. The grain yield was significantly affected due to fertilizer application. The lower grain yield of 41.58 g pot-1 and 56.68 g pot-1 were observed in the NPKSZn fertilizers as 50% of recommendation. The higher grain yield 48.02 g pot-1 and 86.00 g pot-1 were recorded in NPKSZn due to recommended fertilizer application. The highest grain yield was also obtained due to effect of in the interaction of BRRI dhan63 with application of recommended NPKSZn fertilizer.
Keywords: Fertilizer, growth, yield and fine rice
D Afrin, L Arbia, R F Rahman and A K Roy
Journal of Sylhet Agricultural University, 2016, Volume 3, Number 2; Pages: 291-298
The investigation was conducted to evaluate the performances of rearing of eighteen races of silkworm, Bombyx mori L. Characters viz., weight of mature larva, number of cocoon kg-1, yield 100 dfls-1 (disease free layings), cocoon weight, shell weight, shell ratio and length of filament were evaluated in a single rearing season. Performances of the race BSR-BN (B1) were reasonably good for no. of cocoon kg-1, cocoon weight and shell ratio. BSR-BN (M) showed the highest rearing performance for shell weight but the BSR-ISK and BSR-BN (P) M were good for yield and length of filament, respectively. On the other hand, the race Nistari (G) was poor for cocoon weight and shell weight and the races Nistid white (P), BSR-BN (B1), Nistari (P), BSR-I (M) and BSR-IK (M) showed poor rearing performances for weight of mature larvae, shell weight, shell ratio, length of filament and yield 100 dfls-1 respectively in this investigation. Analysis of correlation conducted on the results of the experiment indicated that the characters of the races were correlated with yield non-significantly. Negative correlation between yield 100 dfls-1 and no. of cocoon kg-1 showed higher yield improvement which would be a good combination for an improved method of silk production.
Keywords: Bombyx mori L., rearing performances, yield, correlation, silk production
A A Shimu, M S Islam, A C Das and A Biswas
Journal of Sylhet Agricultural University, 2016, Volume 3, Number 1; Pages: 41-44
The study was conducted during September 2013 to March 2014 at the experimental field of Sylhet Agricultural University with a view to characterize and evaluate the growth and yield of three exotic sweetpotato genotypes viz. SP004, SP006 and SP007 planted at three dates viz., 1 September, 1 October and 1 November 2013 following randomized complete block design (Factorial) with three replications. Growth and yield of sweetpotato were largely influenced by genotypes. The highest number of storage roots plant-1 was recorded from the genotype SP006 (4.93) which were identical to SP004 (4.44). The corresponding highest storage root yield plant-1 (381.44 g) and hectare-1 (21.01 t) was also measured from the genotype SP006 while it was the lowest for SP007 (18.03 t ha-1). Date of planting did not influence the growth and yield of sweetpotato significantly. Average storage root yield hectare-1 for 1 November planting was 20.5 t ha-1 followed by 1 October (20.13 t) and 1 September (18.36 t ha-1) planting. However, among the genotypes, SP007 yielded the highest (22.5 t ha-1) planted at 1 November followed by 1 October planting (21.9 t ha-1). Similar yield was also exhibited by the genotype SP006 which produced 21.9 t and 21.6 t of storage root hectare-1 from 1 October and 1 November planting, respectively.
Keywords: Genotypes, planting dates, sweetpotato, yield
A Huda, M R Islam and K Sumi
Journal of Sylhet Agricultural University, 2016, Volume 3, Number 1; Pages: 25-29
An experiment was carried out during T. aman season of 2014 at Soil Science Field Laboratory of the Department of Soil Science, Bangladesh Agricultural University, Mymensingh to study the effect of different levels of potassium supplied from two different sources on the growth and yield of rice variety BRRI dhan49. The experiment was laid out in a randomized complete block design with three replications having 5 m × 4 m unit plot size. There were seven treatment combinations viz. Control i.e K 0 kg ha-1 (T1), K 40 kg ha-1 as MoP (T2), K 50 kg ha-1 as MoP (T3), K 60 kg ha-1 as MoP (T4), K 40 kg ha-1 as K2SO4 (T5), K 50 kg ha-1 as K2SO4 (T6) and K 60 kg ha-1 as K2SO4 (T7) in the experiment. Basal dose of fertilizers @ 100 kg N, 15 kg P, 12 kg S and 2 kg Zn ha-1 were applied from urea, TSP, gypsum, zinc oxide, respectively for all treatments. The full doses of MoP were applied as per treatments. The results revealed that growth and yield contributing characters like plant height, number of tillers hill-1, panicle length, grains panicle-1 and 1000-grain weight responded significantly to different levels of applied K. The grain and straw yields of BRRI dhan49 were also significantly influenced due to different treatments. The highest grain yield of 4.9 t ha-1 and straw yield of 5.0 t ha-1 were obtained in T4 which was statistically similar to T3. The lowest grain yield of 3.5 t ha-1 and straw yield of 3.9 t ha-1 were found in T1. The K content and uptake by grain and straw were also higher in the treatment T4. The potassium supplied from MoP performed better than that supplied from K2SO4. Hence, the application of K @ 50 kg ha-1 as MoP may be recommended for successful cultivation of BRRI dhan49.
Keywords: Potassium, growth, yield, BRRI dhan49
M A R Choudhury, M M Rahman, M Z Alam, M M Hossain and Q A Khaliq
Journal of Sylhet Agricultural University, 2015, Volume 2, Number 2; Pages: 157-163
An experiment was undertaken to screen ten promising brinjal genotypes namely BARI Begun-1, BARI Begun-6, BARI Begun-8, BARI Begun-9, BARI Begun-10, BARI F1 Begun-4, Metal Hybrid F1 Begun, Getco Hybrid F1 Begun, local genotypes Singnath and Green ball against Brinjal shoot and fruit borer (BSFB) and to observe their relative level of tolerance and yield performance under natural field conditions in winter (September 2014 to March 2015). The highest fruit yield of 33.32 t ha-1 was harvested from BARI Begun-1 and the lowest 15.63 t ha-1 was obtained from Green ball. The highest and the lowest shoot infestation 17.30% and 7.74% were recorded in BARI Begun-8 and BARI Begun-6, respectively. The lowest fruit infestation by number and weight (20.00% and 18.07%) was found in BARI Begun-1 and the highest fruit infestation by number and weight (42.94% and 42.90%) was observed in BARI Begun-8. Varietal tolerance of brinjal against BSFB indicated significant variations among tested genotypes. The BARI Begun-1 showed the moderate level of tolerance and BARI Begun-8 found to be highly susceptible to BSFB.
Keywords: Screening, Brinjal genotype, brinjal shoot and fruit borer, yield
G Kibria, M A Aziz, M Khanam, M A Kashem and R Talukder
Journal of Sylhet Agricultural University, 2015, Volume 2, Number 1; Pages: 49-53
A field experiment was conducted at the field of Regional station of Bangladesh Rice Research Institute (BRRI), Habigonj, during the period from December 2012 to May 2013 to evaluate the effect of NKS nutrients on the growth and yield of BRRI dhan29. The experiment was laid out in a randomized complete block design with three replications. The experiment was consisted with six treatments viz., N85P35K50S9, P38K50S9(-N), N85P38S9(-K), N85P38K50(-S), P38S9(-NK) and N0P0K0S0 (control). Results of the experiment indicated that N, K and S nutrients alone or in combination with each other significantly affected the growth, yield and yield contributing characters of BRRI dhan29. Grain and straw yields were obtained highest in N85P38K50S9 (8.40 and 10.10 t ha-1) and the lowest in P38S9 (-NK) (5.50 and 6.50 t ha-1) which was supported by the data obtained in different growth and yield contributing characters, respectively.
Keywords: Rice, NKS nutrients, growth, yield
M S Uddin, M M Rahman, M M Hossain and M A K Mian
Journal of Sylhet Agricultural University, 2014, Volume 1, Number 2; Pages: 213-219
Combining ability in eight eggplant genotypes were crossed and studied at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh during March 2007 to September 2008. Eggplant genotypes were crossed and evaluated for yield and yield contributing characters. Considering general combining ability (GCA) effects, the parents P1, P2 and P6 were better general combiner for number of fruits plant-1 and yield plant-1; P3, P5 and P8 for fruit weight; P4 for fruit length and P3 and P8 for fruit breadth and P1, P6, P2 and P7 for yield plant-1. Considering specific combining ability (SCA) effects, the crosses P5×P7 were important for fruit length, fruit weight, number of fruits and yield plant-1; P5 ×P8 for fruit breadth, fruit weight, and yield plant-1; P1×P6 and P2×P7 for fruit breadth, number of fruit and yield plant-1; P1×P6, P2×P7, P4×P7 and P5˟ P7 for number of fruits and yield plant-1. Therefore, the parents P1, P6, P2 and P3, P5 and P8 could be considered as better parents for higher yield and the crosses P1×P6, P5×P7, P2×P7, P2×P4, P4×P7, P4×P8, P3×P8 and P5×P8 could be considered as promising hybrids for getting higher yield for summer cultivation in Bangladesh.
Keywords: combining ability, eggplant, yield, summer
M A Aziz, M Saha, M S Islam, M S Hossain and D Saha
Journal of Sylhet Agricultural University, 2014, Volume 1, Number 2; Pages: 175-179
Two experiments were conducted at farmers’ field, Tukerbazer, Sylhet during T. aman season 2011 and Boro season 2012 in order to test the integrated effect of different organic manures and inorganic fertilizers on the growth and yield of wetland rice. In T. aman season eight treatments combinations were: T1= Control, T2= Agro-Sar Organic (ASO) @ 750 kg ha-1, T3= Soil Test Based (STB), T4= T2+50% STB, T5= T2 + 60% STB, T6= T2 + 70% STB, T7= T2 + 80% STB and T8= T2 + T3. BRRI dhan31 was used as test crop. In Boro season ten treatments combinations were: T1= Fertilizer Recommendation Guide 2005 dose: NPKSZn @ 123, 26, 60, 13 and 4 kg ha-1, T2= Agro meal plus @ 300 kg ha-1, T3= T2 + NPKS @ 74, 16, 60 and 8 kg ha-1, T4= ASO @ 740 kg ha-1, T5= T4 + NP KS @ 74, 16, 60 and 8 kg ha-1, T6= Agro-Sar (ASOC) @ 740 kg ha-1, T7= T6 + NPKS @ 74, 18, 36 and 8, T8= Raj Jaibo Sar @ 790 kg ha-1, T9 = T8 + NPKS @ 74, 20, 54 and 9 kg ha-1, and T10= Control (No fertilizer). BRRI dhan29 was used as test crop. The experiments were laid out in a Randomized Complete Block Design with 3 replications. In T. aman season maximum grain yield (3.87 t ha-1) was recorded in treatment T7 (ASO @ 750 kg ha-1 + 80% STB). In Boro season highest grain yield (7.41 t ha-1) was obtained in treatment T5 (ASO @ 740 kg ha-1 + NPKS @ 74, 16, 60 and 8 kg ha-1). The organic fertilizer ASO @ 750 kg ha-1 in combination with 50% reduced rate of chemical fertilizer on STB at T. Aman season and ASO @ 740 kg ha-1 in combination with 50% reduced rate of chemical fertilizer on FRG’05 dose at Boro season produced substantially higher yield.
Keywords: AGRO-SAR, Raj jaibo sar, wetland rice, growth, yield
A Singha, S M H Islam, M Ahmed and T Akter
Journal of Sylhet Agricultural University, 2014, Volume 1, Number 1; Pages: 117-122
A study was conducted at the Bangladesh Agricultural University (BAU) Farm in order to determine the seepage and percolation (S and P) loss in the transplanted Aman (T. Aman) rice field during the period from 23 August to 6 November 2010. The variety of rice was BRRI dhan49. The soil was silty loam having 78% silt, 12% sand and 10% clay. The study was conducted following two cylinders method for measuring seepage and percolation and Blaney-Criddle method for estimating evapotranspiration. This loss (S and P) was combined with evapotranspiration to determine the total water requirement. It was observed that the seepage and percolation loss in the study area varied from 1 to 8.50 mm day-1 with an average of 4.18 mm day-1. Total seepage and percolation loss was 307 mm for the whole growing season. The estimated evapotranspiration for the total growing season was found to be 538 mm with an average of 6.49 mm day-1. The total water requirement was 845 mm for the study period. During the study period seepage and percolation and evapotranspiration was 37% and 63% of total water requirement, respectively. Land soaking, land preparation, and surface drainage loss was not considered to determine water requirement.
Keywords: Seepage and percolation loss, T. Aman rice, water requirement, yield
M Saha, A K Chowdhury, J Ferdousi, D Saha and M I Hossain
Journal of Sylhet Agricultural University, 2014, Volume 1, Number 1; Pages: 51-58
A pot experiment was conducted at the net house of the Department of Agricultural Chemistry of Bangladesh Agricultural University, Mymensingh from March to August, 2010 to study the effect of Indole Acetic Acid (IAA) and Boron on the growth and yield of summer tomato CV. BINA Tomato-3. There were four levels of IAA viz. 0, 20, 40 and 60 ppm and B viz. 0, 1.5, 2.0 and 2.5 kg ha-1. The experiment was laid out in a Completely Randomized Design (CRD) with 3 replications. The result revealed that parameters like plant height, number of leaves plant-1, number of inflorescences plant-1, number of fruits and yield plant-1 were significantly influenced by the application of IAA and B. The highest plant height (90.33 cm), number of inflorescence plant-1 (14.67), number of fruit (18.00) and yield (533.33 g) plant-1 were obtained in 60 ppm IAA along with 2.0 kg B ha-1 and the lowest plant height (84.00 cm), number of inflorescence plant-1 (10.33), number of fruit (9.33) and yield (249.71 g) plant-1 were obtained in control treatment. The overall results suggest that treatment IAA60B2.0 was the best from other treatments.
Keywords: Indole acetic acid, B, growth, yield, summer tomato