sujan mahmud | Bangladesh Agricultural Research Institute (BARI) (original) (raw)

Papers by sujan mahmud

Research paper thumbnail of Effect of Plant Spacing and Varieties on Growth, Yield and Quality of Zero-Till Potato in the Coastal Ganges Delta

Journal of the Indian Society of Coastal Agricultural Research, 2024

Increasing soil salinity, late harvest of Aman rice, shorter cool weather duration, difficulties ... more Increasing soil salinity, late harvest of Aman rice, shorter cool weather duration, difficulties in crop
establishment, shortage of fresh irrigation water and other factors contribute to low crop productivity
in the coastal saline zone of Bangladesh during the Rabi season. An innovative technique for the saline
regions is zero tillage potato cultivation using mulching. The low potato yield is still a disadvantage
to the farmers in salty regions not using the best agronomic procedures for growing potatoes without
tilling the soil. When growing zero tillage potatoes, proper spacing is crucial for both yield and quality.
In order to find out the appropriate spacing at which the potato varieties should be planted in salty soil
using the zero tillage technique, a field experiment was carried out in Tildanga, Dacope Upazila, Khulna
in 2018-2019 and 2019-2020, following the harvest of transplanted Aman rice. The experiment was
designed using a factorial randomized complete block layout with three replications. The combination
effect of 25 cm x 15 cm spacing with BARI Alu 41 produced the highest emergence (98.34%), crop
growth rate (20.24 g m-2 d-1), maximum yield (20.30 t ha-1) and highest A size (28-40 mm) tubers (8.56
t ha-1) according to results from two years of experimentation. The maximum BCR (2.56) were was
observed in the interaction effect of 25 cm x 15 cm spacing with BARI Alu 41. Therefore, in regions with
high levels of salt, the zero tillage method may be suggested using close spacing (25 cm x 15 cm) and
salt tolarent variety BARI Alu 41 for a higher potato production, economic considerations and to meet
farmers’ demands for agriculture.

Research paper thumbnail of Germination Ability of Different Field Pea (Pisum sativum L.) Genotypes Under Salinity Stress

Journal of the Indian Society of Coastal Agricultural Research, 2024

Research paper thumbnail of Ridge and Furrow Sowing Method with Close Spacing Reduces the Salinity Effect of Sunflower Production in the Ganges Delta

Journal of the Indian Society of Coastal Agricultural Research, 2024

Coastal areas of the Ganges delta require optimization of agronomic practices to reduce the salin... more Coastal areas of the Ganges delta require optimization of agronomic practices to reduce the salinity effect on the crop production that can support the "Bangladesh Delta plan 2100". The present study was conducted in the Rabi seasons of 2018-19 and 2019-20 to determine the optimum sowing method and plant spacing of sunflower (variety Hysun 33) in the saline area of Bangladesh. Two sowing methods: flatbed sowing and ridge and furrow sowing and; three plant spacings: 40 cm × 25 cm, 50 cm × 25 cm and 60 cm × 25 cm were laid out in a randomized complete block design with three replications on a farmer's field at Dacope, Khulna. Results showed that although method of sowing had no significant effect on the yield of sunflower the ridge and furrow sowing method reduced the soil bulk density and soil salinity and increased the soil water holding capacity and solute potential significantly. Plant spacing and planting system (interaction of sowing method × plant spacing) had significant effects on growth and yield of sunflower. Plant spacing 50 cm × 25 cm produced the highest sunflower seed (2233 kg ha-1) by achieving optimum plant population to utilize the resource. Planting sytem: ridge and furrow sowing at 50 cm × 25 cm spacing had the lowest soil salinity (4.01 dS m-1) and soil bulk density (0.90 Mg m-3) which leads to highest solute potential (-380 KPa) and highest soil water holding capacity (21%,w/w) at 85 days after sowing of sunflower. This planting system had the highest crop growth rate (24.4 g m-2 day-1) that ultimately produced the highest grain weight per head (36 g) and seed yield (2274 kg ha-1) of sunflower. Ridge and furrow sowing at 50 cm × 25 cm can be effective for achieving maximum yield of sunflower in the Ganges tidal floodplain of Bangladesh.

Research paper thumbnail of RESPONSE OF TRANSPLANT AMAN RICE VARIETIES TO RATES OF TWO EARLY POST-EMERGENCE HERBICIDES

INTERNATIONAL JOURNAL OF BUSINESS, SOCIAL AND SCIENTIFIC RESEARCH, 2020

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University,... more An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from July to December 2013 to study the response of transplant aman rice varieties to rates of two early post-emergence herbicides. The experiment was laid out in a split plot design with three replications. The experimental treatments comprised three varieties, viz., BINA dhan7, BRRI dhan49, BRRI dhan57; and eight herbicide treatments,viz., hand weeding, no weeding, Pyrazosulfuron ethyl @150gha-1 , Pyrazosulfuron ethyl @300gha-1 , Pyrazosulfuron ethyl @450gha-1 , Orthosulfamuron ethyl @150 gha-1 , Orthosulfamuron ethyl @300g ha-1 , Orthosulfamuron ethyl @450gha-1. Early post emergence applications of Pyrazosulfuron ethyl and Orthosulfamuron ethylwere done at 14 DAT. Varieties differed significantly in all the crop parameters and grain yield was highest in BINA dhan7. Herbicide treatment had significant effect on all the crop parameters except 1000-grain weight. Pyrazosulfuron ethyl @150gha-1 and 300gha-1 did not have any toxic effect on rice plant but @450gha-1 showed temporary slight yellowing of leaves which recovered within 5-7 days. On the other hand, the higher dose of Orthosulfamuron had no toxic effect on rice plant. Orthosulfamuron @450gha-1 produced the highest grain yield. Interaction between herbicide treatment and variety differed significantly in all the studied crop parameters except 1000-grain weight. BINA dhan7 with Orthosulfamuron @450 gha-1 gave the highest grain yield.

Research paper thumbnail of Optimization of sowing time of BARI Sarisha 14 & BARI Sarisha 15 in Chittagong region

Journal of Bioscience and Agriculture Research, 2018

The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-201... more The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-2016 to find out the best variety and best sowing time of mustard under the agro ecological condition of Chittagong region. There were two varieties viz. V1=BARI Sarisha 14 and V1=BARI Sarisha15 and six sowing date viz. S1=10 November, S2=20 November, S3= 30 November, S4=10 December, S5=20 December and S6=30 December. Significant variations due to different sowing time and varieties were observed in days to 50% flowering, days to maturity, plant height, branches plant-1 , siliqua plant-1 , length of siliqua, seeds siliqua-1 , 1000 seeds weight (g), yield plot-1 and yield kg ha-1 .

Research paper thumbnail of Performances of improved and traditional rice based jhum cultivation in a hill district of Bangladesh

J Bangladesh Agril Univ 16(2): 193–197, 2018, 2018

ARTICLE INFO Jhum is a customary farming which is very important for the livelihood of the alpine... more ARTICLE INFO Jhum is a customary farming which is very important for the livelihood of the alpine people of Bangladesh. Total productivity of the traditional practice of jhum cultivation is very low. The study was conducted to identify the yield gap between improved and local practices in Bandarban district of Bangladesh during March to September; 2017.The experiment was laid out in randomized complete block design (RCBD) with ten replications. Improved jhum practice produced the higher yields of rice (3113kg/ha), seed cotton (456 kg/ha), sesame (478 kg/ha) and maize (627 kg/ha) than traditional local jhum. Rice Equivalent Yield (REY) was also higher (40.23%) in improved jhum (6786.8kg/ha) than local jhum (4339.8 kg/ha). Improved jhum's rate of returns (2.15) was higher than traditional jhum's rate of returns (1.56). Improved practice in jhum cultivation increased yield and it was economically profitable over traditional practice.

Research paper thumbnail of Productivity and economics of maize–squash intercropping at different planting systems

The competitive behaviors of maize–squash intercropping at different planting systems were studie... more The competitive behaviors of maize–squash intercropping at different planting systems were studied at Regional Agricultural Research Station, Hathazari, Chittagong, Bangladesh during the Rabi season of 2016–17 to find out the suitable planting arrangement of maize–squash intercropping for maximum productivity and economic return. There were seven treatments i.e. T 1 = sole maize, T 2 = 1 row maize (100%) + 1 row squash (6 plants/row), T 3 = maize paired row (100%) + 1 row squash (5 plants/row), T 4 = maize paired row (100%) + 1 row squash (4 plants/row), T 5 = maize paired row (100%) + 2 row squash (5 plants/row), T 6 = maize paired row (100%) + 2 row squash (4 plants/row) and T 7 = sole squash. Results revealed that the Maize Equivalent Yield (MEY) was highest (18.39 t/ha) in T 5 treatment, where Maize paired row (100%) + 2 row squash (5 plants/row) was consummated. The highest Land Equivalent Ratio (LER) 1.62 was found in T 5 treatment. Benefit Cost Ratio (BCR) was also the highest (3.29) in T 5 treatment. Maize paired row (100%) and two rows of squash (5 plants /row) was the suitable row arrangement of the intercrops for judicious use of land consisting optimum populations of the component crops to produce more yield and economic profit.

Research paper thumbnail of CORPORATE SOCIAL RESPONSIBILITY PRACTICES OF COMMERCIAL BANKS IN BANGLADESH

Commercial banks activities have direct impact on the people who forms the part of their clientel... more Commercial banks activities have direct impact on the people who forms the part of their clientele base. This paper endeavored to know the approaches and progressions of discharging the corporate social responsibilities (CSR) of the commercial banks in Bangladesh (CBBs). The study also attempted to know the perceptions of stakeholders about the corporate social responsibility practices of commercial banks of Bangladesh with the help of non-parametric Mann-Whitney Test. A survey was conducted during the period of December 2015 to March 2016 to fulfill the objectives. Results showed that the bankers and the clients' perceptions concerning the social responsibility issues of commercial banks of Bangladesh were not significantly different. The study concludes that corporate social responsibility of Bangladesh commercial bank businesses are progressively changing from the strong economic and legal jurisdiction to the ethical and discretionary features.

Research paper thumbnail of RELATIVE PROFITABILITY OF DIFFERENT CROPPING PATTERN IN THE CHITTAGONG REGION

The study was carried out in three selected areas namely Soabil of Fatikchari, Khorna of Patiya a... more The study was carried out in three selected areas namely Soabil of Fatikchari, Khorna of Patiya and Mohadebpur of Sitakunda in Chittagong District during December 2015 to March 2016, to identify the profitable cropping pattern in the region. The survey method was used for collection of data from randomly selected 90 respondents (30 respondents from each location) by face to face interview through semi-structured questionnaire. The highest single and double cropped area was found at Fatikchari, and triple cropped area in Patiya.

Research paper thumbnail of Response of short duration aman rice varieties to date of transplanting

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural Universit... more An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh
during June to December, 2013 to investigate the response of some short duration aman rice varieties to date of
transplanting. The experiment consisted of three transplanting dates viz. 26 July, 5 August and 15 August and seven
short duration T. aman rice varieties viz. BRRI dhan33, BRRI dhan39, BRRI dhan49, BRRI dhan56, BRRI dhan57,
BRRI hybrid dhan4 and Binadhan-7. The experiment was laid out in split plot design with three replications.
Transplanting dates were allocated into the main plot and varieties into the sub plot. Results indicate that Binadhan-7
produced the highest grain yield (4.90 t ha–1), straw yield (5.58 t ha–1), biological yield (10.44 t ha–1), and harvest
index (47.10%). Lowest grain yield (3.27 t ha–1), straw yield (3.96 t ha–1) and biological yield (7.20 t ha–1) were
produced by BRRI dhan57. BRRI dhan49 had taken the longest field duration (120 DAT) while BRRI dhan57 had
taken the shortest field duration (88 DAT). Plant height (119.12 cm), number of total tillers m-2 (276.40), number of
effective tillers m–2 (260.02), number of grains panicle–1 (109.19), grain yield (4.75 t ha–1), straw yield (5.22 t ha–1),
biological yield (9.97 t ha–1) and harvest index (47.64%) were highest on 26 July transplanting; decreased on 5
August transplanting and drastically declined on 15 August transplanting. The present study concludes that the
highest yield for short duration T. aman rice cultivation could be possible by Binadhan-7 transplanting on 26 July.

Research paper thumbnail of Effect of Trichoderma and fungicide on seedling establishment and yield performance of dry direct seeded boro rice

Poor seedling establishment and seedling mortality is the major barrier to optimum stand establis... more Poor seedling establishment and seedling mortality is the major barrier to optimum stand establishment in dry direct seeded boro rice. Experiments were carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during January to June 2013 to study the effect of Trichoderma and fungicide application on seedling establishment and yield performance of dry direct seeded Boro rice. The experiment comprised ten treatment combinations of Trichoderma and fungicides viz. seed treatment with Trichoderma (M1), seed treatment with Trichoderma+spraying of Thiovit (M2), seed treatment with Trichoderma + spraying of Propiconazole (M3), seed treatment with Trichoderma + spraying of Thiovit and Propiconazole (M4), spraying of Thiovit (M 5), spraying of Propiconazole (M6), seed treatment with Thiovit + spraying of Propiconazole (M7), seed treatment with Propiconazole + spraying of Thiovit (M8), spraying of mixture of Thiovit and Propiconazole (M9), and control (no fungicide or Trichoderma) (M10).The experiments used Randomized Complete Block Design (RCBD) with three replications. Experiment revealed that seed treatment with Trichoderma harzianum followed by spraying of Thiovit gave the highest yield of rice. The study concludes that Trichoderma and then application of sulphur fungicide at 20 days after sowing could be practiced for ensuring high seedling establishment and yield of rice under dry direct seeded system in boro season.

Research paper thumbnail of Factsheet1 - charististics of good seed

Research paper thumbnail of Effect of Plant Spacing and Varieties on Growth, Yield and Quality of Zero-Till Potato in the Coastal Ganges Delta

Journal of the Indian Society of Coastal Agricultural Research, 2024

Increasing soil salinity, late harvest of Aman rice, shorter cool weather duration, difficulties ... more Increasing soil salinity, late harvest of Aman rice, shorter cool weather duration, difficulties in crop
establishment, shortage of fresh irrigation water and other factors contribute to low crop productivity
in the coastal saline zone of Bangladesh during the Rabi season. An innovative technique for the saline
regions is zero tillage potato cultivation using mulching. The low potato yield is still a disadvantage
to the farmers in salty regions not using the best agronomic procedures for growing potatoes without
tilling the soil. When growing zero tillage potatoes, proper spacing is crucial for both yield and quality.
In order to find out the appropriate spacing at which the potato varieties should be planted in salty soil
using the zero tillage technique, a field experiment was carried out in Tildanga, Dacope Upazila, Khulna
in 2018-2019 and 2019-2020, following the harvest of transplanted Aman rice. The experiment was
designed using a factorial randomized complete block layout with three replications. The combination
effect of 25 cm x 15 cm spacing with BARI Alu 41 produced the highest emergence (98.34%), crop
growth rate (20.24 g m-2 d-1), maximum yield (20.30 t ha-1) and highest A size (28-40 mm) tubers (8.56
t ha-1) according to results from two years of experimentation. The maximum BCR (2.56) were was
observed in the interaction effect of 25 cm x 15 cm spacing with BARI Alu 41. Therefore, in regions with
high levels of salt, the zero tillage method may be suggested using close spacing (25 cm x 15 cm) and
salt tolarent variety BARI Alu 41 for a higher potato production, economic considerations and to meet
farmers’ demands for agriculture.

Research paper thumbnail of Germination Ability of Different Field Pea (Pisum sativum L.) Genotypes Under Salinity Stress

Journal of the Indian Society of Coastal Agricultural Research, 2024

Research paper thumbnail of Ridge and Furrow Sowing Method with Close Spacing Reduces the Salinity Effect of Sunflower Production in the Ganges Delta

Journal of the Indian Society of Coastal Agricultural Research, 2024

Coastal areas of the Ganges delta require optimization of agronomic practices to reduce the salin... more Coastal areas of the Ganges delta require optimization of agronomic practices to reduce the salinity effect on the crop production that can support the "Bangladesh Delta plan 2100". The present study was conducted in the Rabi seasons of 2018-19 and 2019-20 to determine the optimum sowing method and plant spacing of sunflower (variety Hysun 33) in the saline area of Bangladesh. Two sowing methods: flatbed sowing and ridge and furrow sowing and; three plant spacings: 40 cm × 25 cm, 50 cm × 25 cm and 60 cm × 25 cm were laid out in a randomized complete block design with three replications on a farmer's field at Dacope, Khulna. Results showed that although method of sowing had no significant effect on the yield of sunflower the ridge and furrow sowing method reduced the soil bulk density and soil salinity and increased the soil water holding capacity and solute potential significantly. Plant spacing and planting system (interaction of sowing method × plant spacing) had significant effects on growth and yield of sunflower. Plant spacing 50 cm × 25 cm produced the highest sunflower seed (2233 kg ha-1) by achieving optimum plant population to utilize the resource. Planting sytem: ridge and furrow sowing at 50 cm × 25 cm spacing had the lowest soil salinity (4.01 dS m-1) and soil bulk density (0.90 Mg m-3) which leads to highest solute potential (-380 KPa) and highest soil water holding capacity (21%,w/w) at 85 days after sowing of sunflower. This planting system had the highest crop growth rate (24.4 g m-2 day-1) that ultimately produced the highest grain weight per head (36 g) and seed yield (2274 kg ha-1) of sunflower. Ridge and furrow sowing at 50 cm × 25 cm can be effective for achieving maximum yield of sunflower in the Ganges tidal floodplain of Bangladesh.

Research paper thumbnail of RESPONSE OF TRANSPLANT AMAN RICE VARIETIES TO RATES OF TWO EARLY POST-EMERGENCE HERBICIDES

INTERNATIONAL JOURNAL OF BUSINESS, SOCIAL AND SCIENTIFIC RESEARCH, 2020

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University,... more An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from July to December 2013 to study the response of transplant aman rice varieties to rates of two early post-emergence herbicides. The experiment was laid out in a split plot design with three replications. The experimental treatments comprised three varieties, viz., BINA dhan7, BRRI dhan49, BRRI dhan57; and eight herbicide treatments,viz., hand weeding, no weeding, Pyrazosulfuron ethyl @150gha-1 , Pyrazosulfuron ethyl @300gha-1 , Pyrazosulfuron ethyl @450gha-1 , Orthosulfamuron ethyl @150 gha-1 , Orthosulfamuron ethyl @300g ha-1 , Orthosulfamuron ethyl @450gha-1. Early post emergence applications of Pyrazosulfuron ethyl and Orthosulfamuron ethylwere done at 14 DAT. Varieties differed significantly in all the crop parameters and grain yield was highest in BINA dhan7. Herbicide treatment had significant effect on all the crop parameters except 1000-grain weight. Pyrazosulfuron ethyl @150gha-1 and 300gha-1 did not have any toxic effect on rice plant but @450gha-1 showed temporary slight yellowing of leaves which recovered within 5-7 days. On the other hand, the higher dose of Orthosulfamuron had no toxic effect on rice plant. Orthosulfamuron @450gha-1 produced the highest grain yield. Interaction between herbicide treatment and variety differed significantly in all the studied crop parameters except 1000-grain weight. BINA dhan7 with Orthosulfamuron @450 gha-1 gave the highest grain yield.

Research paper thumbnail of Optimization of sowing time of BARI Sarisha 14 & BARI Sarisha 15 in Chittagong region

Journal of Bioscience and Agriculture Research, 2018

The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-201... more The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-2016 to find out the best variety and best sowing time of mustard under the agro ecological condition of Chittagong region. There were two varieties viz. V1=BARI Sarisha 14 and V1=BARI Sarisha15 and six sowing date viz. S1=10 November, S2=20 November, S3= 30 November, S4=10 December, S5=20 December and S6=30 December. Significant variations due to different sowing time and varieties were observed in days to 50% flowering, days to maturity, plant height, branches plant-1 , siliqua plant-1 , length of siliqua, seeds siliqua-1 , 1000 seeds weight (g), yield plot-1 and yield kg ha-1 .

Research paper thumbnail of Performances of improved and traditional rice based jhum cultivation in a hill district of Bangladesh

J Bangladesh Agril Univ 16(2): 193–197, 2018, 2018

ARTICLE INFO Jhum is a customary farming which is very important for the livelihood of the alpine... more ARTICLE INFO Jhum is a customary farming which is very important for the livelihood of the alpine people of Bangladesh. Total productivity of the traditional practice of jhum cultivation is very low. The study was conducted to identify the yield gap between improved and local practices in Bandarban district of Bangladesh during March to September; 2017.The experiment was laid out in randomized complete block design (RCBD) with ten replications. Improved jhum practice produced the higher yields of rice (3113kg/ha), seed cotton (456 kg/ha), sesame (478 kg/ha) and maize (627 kg/ha) than traditional local jhum. Rice Equivalent Yield (REY) was also higher (40.23%) in improved jhum (6786.8kg/ha) than local jhum (4339.8 kg/ha). Improved jhum's rate of returns (2.15) was higher than traditional jhum's rate of returns (1.56). Improved practice in jhum cultivation increased yield and it was economically profitable over traditional practice.

Research paper thumbnail of Productivity and economics of maize–squash intercropping at different planting systems

The competitive behaviors of maize–squash intercropping at different planting systems were studie... more The competitive behaviors of maize–squash intercropping at different planting systems were studied at Regional Agricultural Research Station, Hathazari, Chittagong, Bangladesh during the Rabi season of 2016–17 to find out the suitable planting arrangement of maize–squash intercropping for maximum productivity and economic return. There were seven treatments i.e. T 1 = sole maize, T 2 = 1 row maize (100%) + 1 row squash (6 plants/row), T 3 = maize paired row (100%) + 1 row squash (5 plants/row), T 4 = maize paired row (100%) + 1 row squash (4 plants/row), T 5 = maize paired row (100%) + 2 row squash (5 plants/row), T 6 = maize paired row (100%) + 2 row squash (4 plants/row) and T 7 = sole squash. Results revealed that the Maize Equivalent Yield (MEY) was highest (18.39 t/ha) in T 5 treatment, where Maize paired row (100%) + 2 row squash (5 plants/row) was consummated. The highest Land Equivalent Ratio (LER) 1.62 was found in T 5 treatment. Benefit Cost Ratio (BCR) was also the highest (3.29) in T 5 treatment. Maize paired row (100%) and two rows of squash (5 plants /row) was the suitable row arrangement of the intercrops for judicious use of land consisting optimum populations of the component crops to produce more yield and economic profit.

Research paper thumbnail of CORPORATE SOCIAL RESPONSIBILITY PRACTICES OF COMMERCIAL BANKS IN BANGLADESH

Commercial banks activities have direct impact on the people who forms the part of their clientel... more Commercial banks activities have direct impact on the people who forms the part of their clientele base. This paper endeavored to know the approaches and progressions of discharging the corporate social responsibilities (CSR) of the commercial banks in Bangladesh (CBBs). The study also attempted to know the perceptions of stakeholders about the corporate social responsibility practices of commercial banks of Bangladesh with the help of non-parametric Mann-Whitney Test. A survey was conducted during the period of December 2015 to March 2016 to fulfill the objectives. Results showed that the bankers and the clients' perceptions concerning the social responsibility issues of commercial banks of Bangladesh were not significantly different. The study concludes that corporate social responsibility of Bangladesh commercial bank businesses are progressively changing from the strong economic and legal jurisdiction to the ethical and discretionary features.

Research paper thumbnail of RELATIVE PROFITABILITY OF DIFFERENT CROPPING PATTERN IN THE CHITTAGONG REGION

The study was carried out in three selected areas namely Soabil of Fatikchari, Khorna of Patiya a... more The study was carried out in three selected areas namely Soabil of Fatikchari, Khorna of Patiya and Mohadebpur of Sitakunda in Chittagong District during December 2015 to March 2016, to identify the profitable cropping pattern in the region. The survey method was used for collection of data from randomly selected 90 respondents (30 respondents from each location) by face to face interview through semi-structured questionnaire. The highest single and double cropped area was found at Fatikchari, and triple cropped area in Patiya.

Research paper thumbnail of Response of short duration aman rice varieties to date of transplanting

An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural Universit... more An experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh
during June to December, 2013 to investigate the response of some short duration aman rice varieties to date of
transplanting. The experiment consisted of three transplanting dates viz. 26 July, 5 August and 15 August and seven
short duration T. aman rice varieties viz. BRRI dhan33, BRRI dhan39, BRRI dhan49, BRRI dhan56, BRRI dhan57,
BRRI hybrid dhan4 and Binadhan-7. The experiment was laid out in split plot design with three replications.
Transplanting dates were allocated into the main plot and varieties into the sub plot. Results indicate that Binadhan-7
produced the highest grain yield (4.90 t ha–1), straw yield (5.58 t ha–1), biological yield (10.44 t ha–1), and harvest
index (47.10%). Lowest grain yield (3.27 t ha–1), straw yield (3.96 t ha–1) and biological yield (7.20 t ha–1) were
produced by BRRI dhan57. BRRI dhan49 had taken the longest field duration (120 DAT) while BRRI dhan57 had
taken the shortest field duration (88 DAT). Plant height (119.12 cm), number of total tillers m-2 (276.40), number of
effective tillers m–2 (260.02), number of grains panicle–1 (109.19), grain yield (4.75 t ha–1), straw yield (5.22 t ha–1),
biological yield (9.97 t ha–1) and harvest index (47.64%) were highest on 26 July transplanting; decreased on 5
August transplanting and drastically declined on 15 August transplanting. The present study concludes that the
highest yield for short duration T. aman rice cultivation could be possible by Binadhan-7 transplanting on 26 July.

Research paper thumbnail of Effect of Trichoderma and fungicide on seedling establishment and yield performance of dry direct seeded boro rice

Poor seedling establishment and seedling mortality is the major barrier to optimum stand establis... more Poor seedling establishment and seedling mortality is the major barrier to optimum stand establishment in dry direct seeded boro rice. Experiments were carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during January to June 2013 to study the effect of Trichoderma and fungicide application on seedling establishment and yield performance of dry direct seeded Boro rice. The experiment comprised ten treatment combinations of Trichoderma and fungicides viz. seed treatment with Trichoderma (M1), seed treatment with Trichoderma+spraying of Thiovit (M2), seed treatment with Trichoderma + spraying of Propiconazole (M3), seed treatment with Trichoderma + spraying of Thiovit and Propiconazole (M4), spraying of Thiovit (M 5), spraying of Propiconazole (M6), seed treatment with Thiovit + spraying of Propiconazole (M7), seed treatment with Propiconazole + spraying of Thiovit (M8), spraying of mixture of Thiovit and Propiconazole (M9), and control (no fungicide or Trichoderma) (M10).The experiments used Randomized Complete Block Design (RCBD) with three replications. Experiment revealed that seed treatment with Trichoderma harzianum followed by spraying of Thiovit gave the highest yield of rice. The study concludes that Trichoderma and then application of sulphur fungicide at 20 days after sowing could be practiced for ensuring high seedling establishment and yield of rice under dry direct seeded system in boro season.

Research paper thumbnail of Factsheet1 - charististics of good seed