https://www.banglajol.info/index.php/PA/issue/feed Progressive Agriculture 2020-03-22T19:15:48+00:00 Professor Dr. Md. Ruhul Amin progress.agric@bau.edu.bd Open Journal Systems The official journal of Progressive Agriculturists. Full text articles available https://www.banglajol.info/index.php/PA/article/view/45149 Effect of banana bunch covering technology for quality banana production in Bangladesh 2020-03-22T19:15:48+00:00 MHK Rubel aminmr64@yahoo.com MM Hossain mokter.agr@bau.edu.bd MMH Hafiz aminmr64@yahoo.com MM Rahman aminmr64@yahoo.com MR Khatun aminmr64@yahoo.com <p>This study was carried out at Horticulture farm of Bangladesh Agricultural University, Mymensingh in order to find out the effects of bunch covering materials on physio-morphological characters and shelf life of banana cv. Mehersagar. The experiment was undertaken during the period from July to November 2016 with four types of bunch covering materials namely white polythene bag, black polythene bag, blue polythene bag and old cloth along with control (no bunch covering). The experiment was laid out in randomized complete block design with five replications. The results of the investigation revealed that blue polythene bag required significantly minimum days to harvest (76.80 days) and maximum days to harvest (97.80 days) were recorded for control. Maximum bunch weight (19.90 kg), finger length (19.59 cm) and finger diameter (3.56 cm) were recorded for blue polythene bag whereas control showed minimum bunch weight (15.20 kg), finger length (14.57 cm) and finger diameter (3.07 cm). It was observed that blue polythene bag covered fruits showed minimum disease infection (2.33%), insect infestation (2.33%) and physiological disorder (1%) compared to control which experienced maximum disease infection (12.67%), insect infestation (50%) and physiological disorder (13.40%). Weight loss (11.18%), pulp moisture (66.16%), peel moisture (70.41%), disease infection (40%), disease severity (70.25%), skin colour change (4.95) were also lower in blue polythene bag than non covering control fruits. The bunches covered with blue polythene bag&nbsp; exhibited superior results in respect of pulp thickness (3.45cm), pulp to peel ratio (2.49), pulp dry matter (33.84%), peel dry matter (29.59%), TSS (24.28 % Brix), shelf life (11.40 days) than the rest of bunch covering materials used in this study. It can be concluded that bunch covering showed significant effect on physio-morphological traits and quality of banana.</p> <p><strong><em>Progressive Agriculture 30 (3): 238-252, 2019</em></strong></p> 2020-01-29T05:17:33+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45150 Adaptation practices of climate change in agriculture by the farmers of Phulbari upazila of Kurigram district in Bangladesh 2020-03-22T19:15:31+00:00 MM Haque aminmr64@yahoo.com MA Islam maislam@bau.edu.bd ST Auyon aminmr64@yahoo.com MA Rahman aminmr64@yahoo.com S Marzia aminmr64@yahoo.com <p>The main purpose of this study was to determine and describe some socio-demographic character of farmers, the extent of adoption of climate change adaptation practices, explore relationship between selected characteristics and climate change adaptation practices as well as determining the problem faced by the farmers for climate change adaptation. Data were collected using interview schedule from a sample of 96 farmers (exactly 30% of population) out of 320 farmers. For selection of the sample of the study simple random sampling technique was followed. Besides the usual descriptive statistical parameter, Pearson’s Product Moment Correlation Coefficient (r) was used for the statistical analysis. Adoption of climate change adaptation practices was determined on 23 selected practices. For comparative analysis of adoption of climate change adaptation practices by the farmers in individual practices “Adoption of Climate Change Adaptation Practices Index (ACAPI)” was calculated. The highest proportion of the farmers adopt ‘Pit crop in homestead’ (ACAPI= 230.7) as climate change adaptation practice. The lowest adopted practice for climate change adaptation was observed ‘Saline tolerant sugarcane variety ISWARDI-40 cultivation’ with ACAPI value of 37.3. The highest proportion (82.3 percent) of the farmer had medium adoption of practices, while 11.5 percent had high and only 6.3 percent had low adoption of climate change adaptation practices.&nbsp; Among the nine selected characteristics of the farmer’s education, annual income, organizational participation and training received showed positive relationship with adoption of climate change adaptation practices; while their age, family size, farm size aspiration and climate change awareness had no significant relationships. ‘Lack of knowledge regarding modern agricultural technologies’ (64.58 percent) emerged as the most important problem expressed by the farmers.&nbsp; The foremost suggestion cited by the farmers (54.17 percent) was ‘Organizing more training program for the farmers’. Community involvement should be emergency to practice the climate change adaptation to the study area. So, it’s the demand of time to establish something or some policy to take them in action.</p> <p><strong><em>Progressive Agriculture 30 (3): 253-262, 2019</em></strong></p> 2020-01-29T05:17:44+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45151 Effect of salinity stress on plant growth and root yield of carrot 2020-03-22T19:15:16+00:00 I Jahan aminmr64@yahoo.com MM Hossain mokter.agr@bau.edu.bd MR Karim aminmr64@yahoo.com <p>This study was carried out at Horticulture Farm of Bangladesh Agricultural University, Mymensingh to evaluate the effects of different levels of NaCl salinity on plant growth and root yield of two carrot varieties during the period from November, 2016 to February, 2017. Four levels of NaCl salt concentration <em>viz.,</em> 0 (Control), 50, 100 and 150 mM and two varieties of carrot namely <em>Shundori</em> and <em>Kuruda</em> were used for this pot experiment. The two-factor experiment was laid out in randomized complete block design with three replications. The yield and yield components varied significantly between two carrot varieties and intensity of salt concentration. The maximum plant height (33.92 cm), length of leaves (14.51 cm), fresh weight of leaves (9.62 g), percent dry matter content of leaves (21.25 %), length of root (9.05 cm), diameter (11.24 cm), dry matter content of roots (18.18 %) were produced by <em>Shundori</em>. On the other hand, maximum water content of leaves (80.89 %), water content of roots (84.57 %) and weight of roots (10.76 g) were exhibited by <em>Kuruda</em>. Most of the studied parameters showed decreasing trends with the highest level of salinity (200 mM NaCl) producing lowest weight of roots (3.93 g). In case of combined effects of variety and salt concentrations, <em>Kuruda</em> with control condition produced maximum weight of roots (20.62 g) while the minimum weight of roots (3.53 g) was obtained by the combination of <em>Kuruda</em> with the highest level of salt concentration (200 mM NaCl). The result of the experiment revealed that the salinity stress significantly reduced all studied parameters at 100 mM and 150 mM as compared to control and 50 mM NaCl. Therefore, it can be concluded that the variety of <em>Kuruda</em> was found as relatively salt tolerant than <em>Shundori</em>.</p> <p><strong><em>Progressive Agriculture 30 (3): 263-274, 2019</em></strong></p> 2020-01-29T05:18:03+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45152 Potentiality of light source and predator for controlling brown planthopper 2020-03-22T19:15:00+00:00 M Sardar aminmr64@yahoo.com MR Khatun rokeya.entom@bau.edu.bd KS Islam aminmr64@yahoo.com MT Haque aminmr64@yahoo.com G Das aminmr64@yahoo.com <p>Experiments were conducted at the net house and laboratory of the Entomology Division of Bangladesh Institute of Nuclear Agriculture (BINA) to determine the effectiveness of four light sources for light trapping, and performance of three predators for controlling brown plant hopper, <em>Nilaparvata lugens </em>(Stal.).The light intensity and sources were 30-50 lux (candle light), 80-100 lux (kerosene lamp), 180-200 lux (bulb) and 380-400 lux (energy saving lamp). The predators, ladybird beetle, carabid beetle and wolf spider, Light traps of 380-400 lux from energy saving lamp showed maximum effect in reducing the pest brown planthopper. Other light sources had little effect on brown planthopper. Light source of 30-200 lux reduced only a few brown planthopper. The predator wolf spider, <em>Lycosa pseudoannulata</em> consumed all the prey individuals of <em>Nilaparvata lugens</em> in three days exposure period indicating its high predation potentiality. Performance of ladybird beetle, <em>Micraspis discolor</em> was moderate and the carabid beetle, <em>Ophionea indica</em> was poor in controlling brown planthopper. The findings of these experiments indicate that light trapping with a source of 380-400 lux, predation by <em>Lycosa pseudoannulata </em>are the promising options in reducing brown planthopper population successfully and it could be an important part of IPM that is essential for the sustainable management of this deleterious brown planthopper in rice cultivation.</p> <p><strong><em>Progressive Agriculture 30 (3): 275-281, 2019</em></strong></p> 2020-01-29T05:18:19+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45153 Status of soil properties in relationship with soil pH in Madhupur tract of Tangail district in Bangladesh 2020-03-22T19:14:44+00:00 U Kumar uksrdi@yahoo.com H Rashid aminmr64@yahoo.com NH Tithi aminmr64@yahoo.com MY Mia aminmr64@yahoo.com <p>The study was intended to investigate the status of soil properties and its relation to soil pH in Madhupur tract soil of Tangail district, Bangladesh. Thirty soil samples were collected during the period from June-July, 2016 covering four types of land as high land, medium high land, medium low land and low land. The interpretative data showed that the range of pH was strongly acidic to slightly acidic (5.27- 5.90), mean pH was slightly acidic (5.61). The organic matter (OM) status was medium (2.11 to 2.33 %) and mean OM was medium (2.24 %). The Nitrogen (N) status was low (0.11 to 0.13 %) and mean N status was medium (0.12 %). The range of the Phosphorus (P) status was found very low to medium (1.63 to 11.06 µg g<sup>-1</sup> soil) and mean P status was medium (7.37 µg g<sup>-1</sup> soil). The Potassium (K) status was low to very high (0.15 to 0.75meq/100 g soil) and mean K status was low (0.18 meq/100 g soil). The range of the Sulfur (S) status was found from low to medium (11.73 to 16.31 µg g<sup>-1</sup> soil), mean S status was low (13.26 µg g<sup>-1</sup> soil). The range of the Zinc (Zn) status was found from medium to high (0.96 to 2.23 µg g<sup>-1</sup> soil), mean Zn status was optimum (1.55 µg g<sup>-1</sup> soil). The range of the Boron (B) status was found from medium to very high (0.39 to 0.86 µg g<sup>-1</sup> soil), mean B status was high (0.73 µg g<sup>-1</sup> soil). The Calcium (Ca) status was medium to optimum (4.42 to 5.23meq/100 g soil), mean Ca status was optimum (4.83 meq/100 g soil). The Magnesium (Mg) status was optimum to high (1.21 to 1.75meq/100 g soil), mean Mg status was optimum (1.37 meq/100 g soil). No significant correlation of OM and other nutrients with pH.</p> <p><strong><em>Progressive Agriculture 30 (3): 282-287, 2019</em></strong></p> 2020-01-29T05:18:54+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45154 Evaluation of different levels of nitrogen, zinc and their combined effect on yield and yield contributing traits of wheat 2020-03-22T19:14:28+00:00 A Das amitbau007@yahoo.com MAR Sarkar aminmr64@yahoo.com N Islam aminmr64@yahoo.com <p>Nitrogen and zinc are essentially required for the growth of wheat and the insufficient amount or inappropriate combination of both may severely reduce the yield. The present investigation was carried out at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh, Bangladesh to evaluate the effect of different levels of nitrogen i.e. 0 kg/ha (control), 60, 120 and 160 kg/ha and zinc i.e. 0 kg/ha (control), 1 and 2 kg/ha and the interactions of nitrogen and zinc on yield and yield contributing traits of <em>Triticum aestivum</em>L. cv. 'Prodip'. The results&nbsp; showed that there were significant differences in yield and yield contributing traits due to the application of N and Zn fertilizers, although some of the yield attributes were non-significant. The maximum plant height (87.67 cm), number of effective tillers plant<sup>-1</sup> (3.56), grain yield (5.81 tha<sup>-1</sup>) and straw yield (7.07 tha<sup>-1</sup>) were obtained from the application of 160 kg N/ha than at 0/80/120 kg N/ha. Application of 2 kg Zn/ha produced the highest plant height (81.25 cm), number of effective tillers plant<sup>-1</sup>(3.00), grain yield (5.22 tha<sup>-1</sup>) and straw yield (6.27 tha<sup>-1</sup>) whereas, the minimum plant height (80.08 cm), number of effective tillers plant<sup>-1</sup>(2.58), grain (4.65 tha<sup>-1</sup>) and straw (5.68 tha<sup>-1</sup>) yield were found in the control. Interaction effect of N and Zn on yield and most of the yield attributes were found significant. The maximum number of effective tillers plant<sup>-1</sup>(4.00), grain (6.27 tha<sup>-1</sup>) and straw (7.40 tha<sup>-1</sup>) yield were exhibited from the treatment combination of 160 kg N ha<sup>-1</sup> + 2 kg Zn ha<sup>-1</sup>. Grain yield was found to be significantly and positively correlated with number of effective tillers plant<sup>-1</sup>, number of fertile spikelets spike<sup>-1</sup>, number of gains spike<sup>-1 </sup>and straw yield. Therefore, appropriate doses and combinations of nitrogen and zinc would improve the yield of wheat and would provide a rational for the selection of important yield contributing traits for future breeding of wheat for improved yield.</p> <p><strong><em>Progressive Agriculture 30 (3): 288-297, 2019</em></strong></p> 2020-01-29T05:19:06+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45155 Application of alternative treatments to control postharvest fungal infection and shelf life extension of papaya in different maturity stages 2020-03-22T19:14:13+00:00 MHA Rashid harun_hort@bau.edu.bd BC Borman aminmr64@yahoo.com MS Islam aminmr64@yahoo.com A Shirin aminmr64@yahoo.com <p>An experiment was conducted to study the application of alternative treatments to control postharvest fungal infection and shelf life extension of papaya under different maturity stages at the Laboratories of the Department of Horticulture and Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh during the period from August to October, 2018. The two factor experiment (maturity stages and postharvest treatments) was laid out in a completely randomized design (CRD) with three replications. Four postharvest treatments <em>viz.</em>, control, hot water treatment (Fruits treated at 50±2ºC for 10 minutes), chitosan coating (2000ppm chitosan solution) and hot water+chitosan coating were assigned to papaya fruits which were maturity stage I or maturity stage II. Significant variations were observed between maturity stage I (green mature) and maturity stage II (0-10% yellowing of fruits) in relation to most of the parameters studied. Results showed that most of the parameters studied were significantly influenced by the afore-mentioned factors. Longer shelf life (12.64 days) was observed in maturity stage I fruits than maturity stage II fruits (12.18 days). Significant reduction in disease incidence and severity was noticed in the maturity stage I fruits as compared to maturity stage II fruits. The longest shelf life (15.20 days) was found in hot water treated and chitosan coated fruits of maturity stage I, whereas the shortest shelf life (8.52 days) was observed in control of maturity stage II fruits.</p> <p><strong><em>Progressive Agriculture 30 (3): 298-304, 2019</em></strong></p> 2020-01-29T05:19:22+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45156 Effects of selected chemical admixtures on physical and mechanical properties of cement mortar 2020-03-22T19:13:56+00:00 SS Bethe aminmr64@yahoo.com MN Haque aminmr64@yahoo.com MR Islam mrislam.fs@bau.edu.bd <p>This study was aimed to determination of appropriate dosage of selected chemical admixtures to reduce water cement ratio for mortar mix also to determine its effects on physical and mechanical properties of cement mortar. Amount of water used in concrete is very important for the physical and mechanical properties. Less amount of water increase the strength but reduce the workability. Water retarding admixture can reduce the water cement ratio with desired workability. In this experiment plasticizer (master pel 707) and super plasticizer (master polyheed 8632) was used. The used dosages of admixture were 0.5%, 1% and 1.5% according to cement weight. The test was done at 3 days, 7 days, 28 days and 91 days. 2.76″ cube mold was used for the work. The experiment was done to find the difference between with and without admixture used in mortar. Water used reduced with add of plasticizer and super plasticizer. In the experiment the workability of normal mortar and admixture used mortar remain same. The compressive strength is high for 1.5% super plasticizer used sample. So 1.5% super plasticizer is recommended for high strength.</p> <p><strong><em>Progressive Agriculture 30 (3): 305-310, 2019</em></strong></p> 2020-01-29T05:19:35+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45157 Effects of waste ceramic aggregate on compressive strength of cement mortar 2020-03-22T19:13:41+00:00 MSH Sunny aminmr64@yahoo.com MR Islam mrislam.fs@bau.edu.bd MS Rahman aminmr64@yahoo.com MT Hasan aminmr64@yahoo.com <p>In Bangladesh, the cost of building materials is increasing gradually, available raw materials of construction are not sufficient to meet up the needs of the country. For that we have to find out cheaper and waste materials (such as ceramic waste) to reuse for construction<strong>. </strong>The study was conducted to observe the physical properties of waste ceramics and compressive strength of ceramics mortar for different curing ages. The study was done to check the probability of using waste ceramics instead of natural aggregates (sand).The fineness modulus of ceramics aggregates was 2.94. Ceramic aggregate absorbs 5.89% moisture whereas sand absorbs 14.33%. Generally, finer the aggregate shows greater the compressive strength. Though the fineness modulus of ceramics was greater than that of sand, it possessed higher compressive strength because of its self-strength. The ratio of mortar mixture was (1:2) and (1:3) for different curing periods both sand and ceramics samples. The compressive strength of sand and ceramic mortar was 2603 psi and 3500 psi respectively at the ratio of (1:2) for 3 days curing. On the other hand the compressive strength of sand and ceramics mortar was 2340 psi and 3075 psi respectively at the ratio of (1:3) for 3 days curing. Between the sand and ceramic mortar, the compressive strength of ceramic mortar was found maximum at 28 days curing period. It can be concluded that recycled ceramic aggregates will be used in comparatively low load bearing, low cost temporary and medium category farming etc. concrete structure.</p> <p><strong><em>Progressive Agriculture 30 (3): 311-316, 2019</em></strong></p> 2020-01-29T05:19:47+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45158 Performance evaluation of a motor operated oil palm crusher 2020-03-22T19:13:25+00:00 MM Zannat aminmr64@yahoo.com R Nandi aminmr64@yahoo.com M Ashik-E-Rabbani aminmr64@yahoo.com MA Awal awalpm@bau.edu.bd <p>Performance of a motor operated oil palm crusher was tested at the Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. The crusher is powered by a three- phase 7.5hp electric motor. Crushing efficiency and crushing capacity are some of the most important parameters for evaluating the crushing performance. This study provides some information on the composition of crude palm oil, palm oil extraction methods, the crushing efficiency, etc. The crusher has an average oil extraction efficiency of 72.84 %. This was obtained from 2.5kg of palm fruit at the steaming time of 2min. The average crushing capacity of the crusher was 12.72 kg/hr. The average crude palm oil percentage in fruit was 19.67%. On an average 200 gm of crude palm oil was extracted from 1 kg of fruit. The average oil cake percentage in palm fruit was 62.2% and the average sediment percentage was 14.04%. &nbsp;Manually, the crushing capacity was 0.84 kg/hr, crude palm oil percentage was 22.14%, oil cake percentage was 44.28%. The break-even point of the crusher was 700 hr. It means that if the crusher is used for more than 700 hr, it will be economically suitable compared to manual crusher. The quality parameters evaluated were Free fatty acid, Iodine value, Peroxide value and Saponification value. Free fatty acid was 1.33%; Iodine value was 50; Peroxide value was 2meq/kg; and Saponification value was 120. Overall performance of the machine was satisfactory compared to manually operated crusher.</p> <p><strong><em>Progressive Agriculture 30 (3): 317-327, 2019</em></strong></p> 2020-01-29T05:20:00+00:00 ##submission.copyrightStatement## https://www.banglajol.info/index.php/PA/article/view/45159 Application of waste tyre rubber chips as coarse aggregate in concrete 2020-03-22T19:13:09+00:00 Z Muyen zahida.muyen@bau.edu.bd F Mahmud aminmr64@yahoo.com MN Hoque aminmr64@yahoo.com <p>The practicality and the engineering properties of portland cement concrete (PCC) and three types of rubberized PCC mixes prepared by partially replacing the conventional coarse aggregate with rubber were examined. The rubberized PCC mixes contained 5%, 10% and 15% waste tyre rubber chips as replacement of conventional coarse aggregate. Different physical and mechanical properties of the control (0% rubber chips) and the rubberized concrete samples were determined. A 5% replacement of conventional aggregates resulted in a 5% reduction of compressive strength, a 10% replacement resulted in a 26% reduction and a 15% replacement resulted in a reduction of 47%. A 5% replacement of conventional aggregates resulted in a 6% reduction of tensile strength, a 10% replacement resulted in a 33% reduction and a 15% replacement resulted in a reduction of 53%. A 5% replacement of conventional aggregates resulted in a 13% reduction of flexural strength, a 10% replacement resulted in a 33% reduction and a 15% replacement resulted in a reduction of 42%. Although concrete made from tyres had lower strength than the normal concrete, rubberized concrete can find its use in landscaping, sports field ground, architectural finishing, lightweight concrete walls etc.</p> <p><strong><em>Progressive Agriculture 30 (3): 328-334, 2019</em></strong></p> 2020-01-29T05:20:16+00:00 ##submission.copyrightStatement##