scholarly journals Intercropping of Cabbage with Maize

2020 ◽  
Vol 22 (1) ◽  
pp. 115-120
Author(s):  
MM Khanum ◽  
MM Bazzaz ◽  
B Ahmed ◽  
MS Huda ◽  
MA Hossain
Keyword(s):  
Agricultural Research ◽  
Maize Yield ◽  
Research Field ◽  
Research Station ◽  
Rabi Season ◽  
Gross Margin ◽  
Economic Return ◽  
Total Productivity ◽  
Maize Grain ◽  
Equivalent Yield

The experiment was carried out at the research field of Agricultural Research Station, Rajbari, Dinajpur (Latitude: 25.63544, Longitude: 88.65144) during rabi season of 2016-2017 and 2017-18 under AEZ-1 to find out the suitable crop combination for higher productivity and economic return. Five different treatments were employed in the study viz. T1= Sole maize (60cm x×20cm), T2= Maize planting (75cm×x 25cm) + 1 row cabbage (50cm×50cm) T3= Maize paired row (150cm/37.5cm x 25cm) + 2 rows cabbage (50cm x×50cm) T4=Maize planting (60cm x×20cm )+1 row cabbage (60cm x×50cm), T5= Maize paired row (120cm/30cm× x 20cm) + 2 rows cabbage (60cm x 50cm) were evaluated. Maize grain yield in intercropped combination varied from 6.60-9.23 t ha-1. But the highest maize yield was recorded in Maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm × 25cm) +2 rows cabbage (50cm x×50cm), while the highest cabbage yield was recorded in maize planting (60cm x 20cm) + 1 row cabbage(60cm x 50cm) between maize. The highest maize equivalent yield was also obtained in maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm x 25cm) + 2 rows cabbage (50cm x 50cm). The highest gross return, gross margin and BCR were obtained in maize planting (60cm × 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm x 25cm) +2 rows cabbage(50cm x 50cm) and the lowest in sole sowing of maize. The overall results indicated that among the intercrop combinations maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) and maize paired row (150/37.5cm x 25cm) +2 rows cabbage (50cm x 50cm) were found suitable for total productivity and economic return of the system. Bangladesh Agron. J. 2019, 22(1): 115-120

scholarly journals Intercropping French Bean with Brinjal at Varying Planting System

2019 ◽  
Vol 21 (2) ◽  
pp. 1-6
Author(s):  
JA Chowdhury ◽  
Md Mahfuz Bazzaz ◽  
SS Kakon ◽  
AA Begum ◽  
Most Mahbuba Khanum
Keyword(s):  
Agricultural Research ◽  
French Bean ◽  
Research Field ◽  
Research Station ◽  
Gross Margin ◽  
Economic Return ◽  
Land Equivalent Ratio ◽  
Sole Cropping ◽  
Bean Yield ◽  
Total Productivity

The experiment was carried out at the research field of Agricultural Research Station, Rajbari, Dinajpur during rabi season of 2014-15 and 2015-16 to find out suitable crop combination for higher productivity and economic return. Six different treatments viz. T1 = Sole brinjal (75 cm x 60 cm), T2 = Sole french bean (30 cm x 10 cm), T3 = Brinjal normal row (100%) + 1 line french bean between brinjal (33%), T4 = Brinjal normal row (100%) + 2 lines french bean between brinjal (66%), T5 = Brinjal paired row (100%) + 3 lines french bean between brinjal (40%) and T6 = Brinjal paired row (100%) + 4 lines french bean between brinjal (53%) were evaluated. The results revealed that the highest mean fruit yield of brinjal (44.26 t ha-1) and french bean (20.96 t ha-1) was obtained in sole cropping of component crops. Under intercropping, the highest brinjal yield (38.61 t ha-1) was recorded in brinjal normal row + 1 line french bean between brinjal, while, the highest french bean yield (16.06 t ha-1)  in brinjal normal row + 2 lines french bean between brinjal. The highest mean brinjal equivalent yield (58.72 t ha-1) and land equivalent ratio (1.50) was also obtained in brinjal normal row + 2 lines french bean between brinjal. The highest gross return (Tk. 4,69,760 ha-1), gross margin (Tk. 3,66,440 ha-1), and BCR (4.54) were obtained in brinjal normal row + 2 lines french bean between brinjal and the lowest in sole french bean. The overall results indicated that among the intercrop combinations brinjal normal row + 2 lines french bean between brinjal was found suitable for total productivity and economic return of the system. Bangladesh Agron. J. 2018, 21(2): 1-6

scholarly journals Hybrid maize and sweet potato intercropping: a technology to increase productivity and profitability for poor hill farmers in Bangladesh

2015 ◽  
Vol 12 (2) ◽  
pp. 101-111 ◽  
Author(s):  
MN Islam ◽  
M Akhteruzzaman ◽  
MS Alom ◽  
M Salim
Keyword(s):  
Sweet Potato ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Light Availability ◽  
Maize Yield ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Canopy Development ◽  
Equivalent Yield

The experiment was conducted at the Hill Agricultural Research Station, Khagrachari during two winter seasons of 2010-11 and 2011-12 to find out suitable planting system of the component crops for increasing productivity and profitibility for hill farmers of Bangladesh. Three intercrop combinations viz., (i) maize paired row + 2 rows sweet potato, (ii) maize normal row +1 row sweet potato and (iii) sweet potato normal row + 1 row maize were evaluated against their respective sole crops. In all combinations, light availability was more at early growth stage and reduced gradually with the advancement of canopy development of maize. Light availability was minimum at 100 days after emergence and thereafter slightly increased in three intercrop combinations. Among intercrop combinations, light availability to sweet potato canopy was more in maize paired row + 2 rows sweet potato combination through out the crop period which enhance tuber formation, tuber bulging and tuber yield. Contrary, sweet potato vines provide a mulch cover for maize which preserve soil moisture and reduce weed infestation producing higher yield and yield components of maize. Maize yield (cob yield: 19.82 t ha-1, grain yield: 8.98 t ha-1), tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination. Similarly, the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination. The results revealed that maize paired row + 2 rows sweet DOI: http://dx.doi.org/10.3329/sja.v12i2.21922 SAARC J. Agri., 12(2): 101-111 (2014)

scholarly journals Study On Intercropping Leafy Vegetables With Okra (Abelmoschus esculentus L.)

2013 ◽  
Vol 38 (1) ◽  
pp. 137-143
Author(s):  
F Ahmed ◽  
MN Islam ◽  
Ms Alom ◽  
MAI Sarker ◽  
MA Mannaf
Keyword(s):  
Agricultural Research ◽  
Leafy Vegetables ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Economic Return ◽  
Benefit Cost Ratio ◽  
Suitable Combination ◽  
Total Productivity ◽  
Benefit Cost

A field experiment on intercropping of okra and leafy vegetables was conducted at Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur and Agricultural Research Station, Burirhat, Rangpur during Kharif-I season of 2010 and 2011 to find out suitable crop combination for higher productivity and economic return. Seven treatments viz., sole okra (50 cm × 40cm), okra 100% (in row) + red-amaranth 100% (broadcast), okra 100% (in row) + red-amaranth 75% (broadcast), okra 100% (in row) + leaf amaranth 100% (broadcast), okra 100% (in row) + leaf amaranth 75% (broadcast), okra 100% (in row) + jute as patshak 100% (broadcast), okra 100% (in row) + jute as patshak 75% (broadcast) were used. Intercropping reduced okra yield but total productivity increased due to additional yield of vegetables. In both the locations, sole okra produced the highest yields (15.82 t/ha at Joydebpur and 13.79 t/ha at Burirhat). Among the intercropping treatments, the highest okra yields (15.42 t/ha at Joydebpur and 12.64 t/ha at Burirhat) were obtained from okra 100%+ red amaranth 75% combination. The lowest okra yield (13.16 t/ha at Joydebpur and 11.75 t/ha at Burirhat) was recorded in okra 100% + jute as patshak 100% combination. The highest okra equivalent yield (23.00 t/ha) was recorded in okra 100% + red amaranth 100% at Joydebpur and in okra 100% + leaf amaranth 100% (21.79 t/ha) at Burirhat. These treatment combinations also gave the highest gross margin (Tk. 227180/ha at Joydebpur and Tk. 214600/ha at Burirhat) and benefit cost ratio (5.66 at Joydebpur and 5.58 at Burirhat). The results revealed that cent percent red amaranth (broadcast) or leaf amaranth intercropped with cent percent okra might be suitable combination for higher productivity and economic return at Joydebpur and Burirhat, respectively. Bangladesh J. Agril. Res. 38(1): 137-143, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15199

scholarly journals Intercropping Squash with Maize under Varying Planting System

2019 ◽  
Vol 21 (2) ◽  
pp. 19-24
Author(s):  
JA Chowdhury ◽  
SS Kakon ◽  
AA Begum ◽  
MAK Mian
Keyword(s):  
Grain Yield ◽  
Agricultural Research ◽  
Research Field ◽  
Agricultural Research Institute ◽  
Gross Margin ◽  
Economic Return ◽  
Sole Crop ◽  
Hybrid Maize ◽  
Equivalent Yield ◽  
Planting System

The experiment was conducted at the research field of Agronomy Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during rabi seasons of 2014-15 and 2015-16 to find out the suitable planting arrangement of squash (var. Bulam House) with maize (var. BARI Hybrid maize-9) as intercropping for higher productivity and economic return. Seven treatment combinations viz. maize normal plating (75 cm Í 25 cm), maize normal plating (75 cm Í 25 cm) (100%) + 1 row squash (Plant to Plant 80 cm) (116%), maize paired row (37.5 cm Í 150 cm Í 37.5 cm) (100%) + 1 row squash (Plant to Plant 80 cm) (50%), maize paired row (100%) + 1 row squash (Plant to Plant 100 cm) (40%), maize paired row (100%) + 2 rows squash (Plant to Plant 80 cm) (100%), maize paired row (100%) + 2 rows squash (80%) (Plant to Plant 100 cm) and sole Squash (100 cm × 80 cm) were tested. Results showed that the highest grain yield of maize (9.47 t ha-1 in 2014-15 and 9.24 t ha-1 in 2015-16) and squash yield (28.19 t ha-1 in 2014-15 and 25.02 t ha-1 in 2015-16) were recorded in sole crop, respectively. Maximum mean maize equivalent yield (19.39 t ha-1) was recorded in maize paired row (100%) + 2 row squash (Plant to Plant 80 cm) (100%) combination in both the year. The highest gross return (Tk. 2,93,850 ha-1), gross margin (Tk. 1,92,450 ha-1) and BCR (2.95) were also obtained from the same combinations. Two years’ results revealed that maize paired row + 2 rows squash (Plant to Plant 80 cm) combination could be suitable for higher productivity and economic return. Bangladesh Agron. J. 2018, 21(2): 19-24

scholarly journals Efficiency of Intercropping Vegetables and Spices Relayed with Pointed Gourd

2015 ◽  
Vol 18 (1) ◽  
pp. 7-12 ◽  
Author(s):  
MR Islam ◽  
MAK Mian ◽  
SN Mahfuza ◽  
J Hossain ◽  
A Hannan
Keyword(s):  
Agricultural Research ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Land Equivalent Ratio ◽  
Benefit Cost Ratio ◽  
Total Productivity ◽  
Pointed Gourd ◽  
Benefit Cost ◽  
Equivalent Yield

An intercropping experiment was conducted at the Regional Agricultural Research Station, BARI, Ishurdi, Pabna during 2007-2008 and 2008-2009 to find out the suitable intercrop combination for increasing total productivity and returns. Seven treatments, viz. sole pointed gourd, two times lalshak + two rows turmeric in between pointed gourd lines, two times spinach + two rows turmeric in between pointed gourd lines, one time bushbean + two rows turmeric in between pointed gourd lines, two times lalshak + two rows ginger in between pointed gourd lines, two times spinach + two rows ginger in between pointed gourd lines and one time bushbean + two rows ginger in between pointed gourd lines were compared. All the intercropping combinations were higher in terms of pointed gourd equivalent yield, gross return, gross margin and benefit cost ratio (BCR) over sole crops. The highest pointed gourd equivalent yield (105.92 t ha-1) and gross return (Tk. 2118480 ha-1) was found from two times spinach + two rows ginger in between pointed gourd lines combination. The land equivalent ratio was observed highest (2.29) in same combination which was similar to one time bushbean + two rows ginger in between pointed gourd lines combination. One time bushbean + two rows ginger in between pointed gourd lines combination gave the highest monetary returns in respect of gross margin (Tk.1623333 ha-1) and BCR (4.19). The increases in total productivity in terms of pointed gourd equivalent yields were 53.72-128.62 t ha-1 in intercrop combination compared to base crop.Bangladesh Agron. J. 2015, 18(1): 7-12

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

2018 ◽  
Vol 16 (1) ◽  
pp. 23-26
Author(s):  
S Mahmud ◽  
MM Alam ◽  
MM Rahman ◽  
M Amin ◽  
MM Hassan
Keyword(s):  
Agricultural Research ◽  
Cost Ratio ◽  
Research Station ◽  
Rabi Season ◽  
Treatment Benefit ◽  
Economic Return ◽  
Land Equivalent Ratio ◽  
Benefit Cost Ratio ◽  
Benefit Cost ◽  
Equivalent Yield

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. T1= sole maize, T2= 1 row maize (100%) + 1 row squash (6 plants/row), T3= maize paired row (100%) + 1 row squash (5 plants/row), T4= maize paired row (100%) + 1 row squash (4 plants/row), T5= maize paired row (100%) + 2 row squash (5 plants/row), T6= maize paired row (100%) + 2 row squash (4 plants/row) and T7= sole squash. Results revealed that the Maize Equivalent Yield (MEY) was highest (18.39 t/ha) in T5treatment, where Maize paired row (100%) + 2 row squash (5 plants/row) was consummated. The highest Land Equivalent Ratio (LER) 1.62 was found in T5 treatment. Benefit-Cost Ratio (BCR) was also the highest (3.29) in T5 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 profitJ. Bangladesh Agril. Univ. 16(1): 23-26, April 2018

scholarly journals Split application of inorganic fertilizers in potato (Solanum tuberosum L.)-hybrid maize (Zea mays L.) Intercropping system

2013 ◽  
Vol 38 (3) ◽  
pp. 447-453
Author(s):  
MN Islam ◽  
M Akhteruzzaman ◽  
MS Alom
Keyword(s):  
Solanum Tuberosum L ◽  
Research Field ◽  
Cost Ratio ◽  
Split Application ◽  
Rabi Season ◽  
Gross Margin ◽  
Benefit Cost Ratio ◽  
Hybrid Maize ◽  
Benefit Cost ◽  
Equivalent Yield

The experiment was conducted at the research field of Agronomy Division, BARI, Joydebpur, Gazipur during the rabi season of 2009-10 and 2010-11 to find out economic fertilizer dose along with time of split application of fertilizers to potato-hybrid maize intercropping system for higher productivity. Six treatment combinations were derived through combining two fertilizer doses F1= 255-55-140-40-6-2 and F2=320-73-170-50-6-2 kg/ha NPKSZnB and three levels of split applications viz., S1= 1/3 N and full of PKSZnB (basal as broadcast) + 1/3 N top dressed at 30 DAP (days after planting) of potato + 1/3 N top dressed after potato harvest, S2= 1/3 N & ½ of PKSZnB (basal in potato rows) + ½ of PKSZnB (basal for maize) + 1/3 N top dressed at 30 DAP of potato + 1/3 N top dressed after potato harvest and S3= ¼ N & ½ of PKSZnB (basal in potato rows) + ½ of PKSZnB (basal for maize) + ¼ N top dressed at 30 DAP of potato + ¼ N top dressed at 60 DAP of potato to maize rows only + ¼ N top dressed after potato harvest. Sole crops of hybrid maize and potato with recommended fertilizer dose of 255-55-140-40-6-2 and 135-30-135-15-4-0.5 kg/ha NPKSZnB were included for comparison. The highest tuber yield of potato (24.24 t/ha) and grain yield of maize (9.48 t/ha) were obtained from respective sole crops with recommended fertilizer management. The highest potato equivalent yield (30.26 t/ha), gross return (Tk. 363120/ha), gross margin (Tk. 258620/ha), and benefit cost ratio (3.47) were obtained from F1S3. The results revealed that fertilizer dose of 255-55-140-40-6-2 kg/ha NPKSZnB along with its split application, ¼ N and ½ of PKSZnB (basal in potato rows) + ½ of PKSZnB (basal for maize) + ¼ N top dressed at 30 DAP of potato + ¼ N top dressed at 60 DAP of potato to maize rows only + ¼ N top dressed after potato harvest, might be economically profitable for potato hybrid maize intercropping system. DOI: http://dx.doi.org/10.3329/bjar.v38i3.16971 Bangladesh J. Agril. Res. 38(3): 447-453, September 2013

scholarly journals Performance of sweet potato varieties in hilly area

2015 ◽  
Vol 17 (2) ◽  
pp. 83-87
Author(s):  
M Shaheenuzzamn ◽  
RR Saha ◽  
A Biswas ◽  
MS Islam
Keyword(s):  
Sweet Potato ◽  
Agricultural Research ◽  
Research Field ◽  
Research Station ◽  
Net Income ◽  
Rabi Season ◽  
Potato Varieties ◽  
Local Cultivar ◽  
New Varieties ◽  
Individual Tuber

The experiment was conducted at the research field of Hill Tract Agricultural Research Station. Ramgarh, Khagrachari during Rabi season of 2012-2013 and 2013-14. Five different sweet potato varieties (BARI Sweetpotato-6, BARI Sweetpotato-7, BARI Sweetpotato-8, BARI Swwetpotato-9 and local cultivar were included as treatment variables in the experiment. BARI Sweetpotato-7 had significantly more number of vines (8.30) as compared to local cultivar and other new varieties such as BARI Sweetpotato-6, BARI Sweetpotato-8 and BARI Sweetpotato-9. Maximum number of tuber plant-1 (5.4 and 5.3), tuber length (15.30 and 15.80 cm), tuber diameter (5.10 and 5.20 cm), individual tuber weight (368.35 and 377.69 g) and tuber yield (19.89 and 20.13 t ha-1) was recorded from BARI Sweetpotato-9 during 2012-13 and 2013-14, respectively whereas local cultivar gave minimum values. The variety BARI Sweetpotato-9 out yielded local cultivar by 108.93 and 103.13 % during two consecutive years but  highest net income (3,10,818 and 3, 15,617 Tk. ha-1) from  BARI Sweetpotato-7Bangladesh Agron. J. 2014, 17(2): 83-87

scholarly journals Planting System Effects on Intercropping of Gardenpea and Sorghum

2021 ◽  
Vol 23 (2) ◽  
pp. 59-68
Author(s):  
AA Begum ◽  
MAK Mian ◽  
SMAHM Kamal ◽  
MR Karim ◽  
RR Saha ◽  
...  
Keyword(s):  
Light Availability ◽  
Research Field ◽  
Cost Ratio ◽  
Rabi Season ◽  
Gross Margin ◽  
Land Equivalent Ratio ◽  
Benefit Cost Ratio ◽  
Suitable Combination ◽  
Benefit Cost ◽  
Equivalent Yield

The field experiment was conducted at Agronomy Research Field, Joydebpur and RARS, Burirhat, Rangpur, BARI during Rabi season of 2018-2019 and 2019-2020 to find out suitable combination of sorghum and gardenpea intercropping for higher productivity and monetary advantage. Treatments included in the experiment were: T1 = Sorghum normal row (SNR) + 1 row gardenpea (GP), T2 = SNR + 2 rows GP, T3 = Sorghum paired row (SPR) + 2 rows GP, T4 = SPR + 3 rows GP, T5 = SPR + 4 rows GP, T6 = Sole sorghum (60 cm ´ 10 cm) and T7 = Sole GP (30 cm ´ 10 cm). Light availability on gardenpea decreased with the increase of shade produced by sorghum canopy over the time up to 60 DAS. The lowest light availability on gardenpea was observed in T2 treatment and the highest was observed in sole gardenpea (T7) followed by T3 treatment in both the years. The maximum grain yield of sorghum was observed in T6 and it was decreased (6-10% in 2018-2019 and 1-12% in 2019-2020) at Joydebpur and (5-11% in 2018-2019 and 6-14% in 2019-2020) at Burirhat. The highest sorghum equivalent yield (SEY) of 10.93 t ha-1 in 2018-2019 and 12.02 t ha-1 in 2019-2020 at Joydebpur and 12.06 t ha-1 in 2018-2019 and 11.77 t ha-1 in 2019-2020 at Burirhat and also the highest land equivalent ratio (LER) of 1.77 in 2018-2019 and 1.93 in 2019-2020 at Joydebpur and 1.79 in 2018-2019 and 1.81 in 2019-2020 at Burirhatwere observed in T5 treatment. The highest gross margin of Tk.146600 ha-1 in 2018-2019 and Tk.168400 ha-1 in 2019-2020 at Joydebpur and Tk. 169200 ha-1 in 2018-2019 and Tk.163400 ha-1 in 2019-2020 at Burirhat and also the benefit cost ratio (BCR) of 3.04 in 2018-2019 and 3.34 in 2019-2020 at Joydebpur and 3.35 in 2018-2019 and 3.27 in 2019-2020 at Burirhat were also found in the same treatment. The results revealed that sorghum paired row + 4 rows gardenpea might be agronomically feasible and economically profitable for sorghum + gardenpea intercropping system at Joydebpur and Burirhat region. Bangladesh Agron. J. 2020, 23(2): 59-68

scholarly journals Effect of Sowing Dates on the Yield of Sunflower

2015 ◽  
Vol 18 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Bulbul Ahmed ◽  
Mousumi Sultana ◽  
Jesmin Zaman ◽  
Santos Kumar Paul ◽  
Md Mokhlesur Rahman ◽  
...  
Keyword(s):  
Agricultural Research ◽  
Maximum Yield ◽  
Sowing Date ◽  
Research Field ◽  
Research Station ◽  
Rabi Season ◽  
Agricultural Research Institute ◽  
Seed Formation ◽  
Yield Attributes ◽  
Sowing Dates

The experiment was carried out at Agronomy Research field of Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur and Regional Agricultural Research Station, Hathazari, Chittagong to find out optimum sowing date of sunflower during rabi season 2012-13. The sunflower var. BARI Surjomukhi-2 was used. Five sowing dates; 10 November, 20 November, 30 November, 10 December and 20 December were tested. It was revealed that yield and yield attributes of sunflower were significantly influenced by sowing dates. The maximum plant height (172.13 cm), head diameter (18.33), weight of seed / per head (66 g), 1000- seed weight (68 g) and yield (2.5 t ha?1) were obtained from 20 November sowing. The lowest yield (1.83 t ha?1) was obtained from 20 December sowing. The 20 November sowing received the higher duration for maturity (127 days), first flowering (57 days) and seed formation (20 days) while 20 December sowing showed shorter duration for maturity, first flowering and seed formation of 119, 54 and 14 days respectively. It was concluded that the 20 November sowing would be the optimum time of sowing for achieving maximum yield of sunflower.Bangladesh Agron. J. 2015, 18(1): 1-5

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