Mohshina Mustare Liza
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Alak Barman*
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
Swarna Shome
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Md. Eliyachur Rahman
Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
Polly
Department of Horticulture, First Capital University of Bangladesh, Chuadanga, Bangladesh.
Biological yield; Fertilizer; Harvest index; Pulse crop; Sowing time
Sher-e-Bangla Agricultural University Farm, Dhaka, Bangladesh
Crop-Soil-Water Management
Mungbean, Potash, Boron
2.1. Experimental site: The field experiment was laid out at Sher-e-Bangla Agricultural University Farm, Bangladesh during the period during Rabi season. The experimental area was situated between 23074/ latitude and 95035/ longitude. It belongs to a subtropical climate. The land of the selected experimental plot is under Madhupur Tract with shallow red-brown terrace soil.
2.2. Experimental design and treatments BARI Mung-6, a photo insensitive, high yield variety, developed by Bangladesh Agricultural Research institute, was used as a test crop. The experiment was conducted following Randomized Complete Block Design (RCBD) with three replications. The experiment consisted of five treatments viz. F0 = Recommended dose (R) [9], F1 = R+ Additional 10 kg K ha-1 + 1 kg B ha-1, F2 = R+ Additional 20 kg K ha-1 + 1 kg B ha-1, F3 = R+ Additional 10 kg K ha-1 + 2 kg B ha-1 and F4= R+ Additional 20 kg K ha-1+ 2 kg B ha-1. The unit plot size was 3 m2 (2 m × 1.5 m).
2.3. Sowing and management of crop The land of the experimental plot was prepared with a power tiller on 23 October 2013. The full amount of N, P, K and B was applied at the time of final land preparation in the forms of urea, triple superphosphate, muriate of Potash and boric acid, respectively. The experimental plots were fertilized according to treatments. Mungbean (var. BARI Mung-6) seed was sown on 25 October in rows maintaining row to row distance 30cm and seed to seed distance 10 cm. Crop management activities were done when needed. Thinning was done at 7 days after emergence of seed for every sowing time. Weeding was done at 20-25 days after the emergence of the seed. Mulching was done 30-35 days after the emergence of seedlings. Irrigation and pesticide were given as per necessity.
2.4. Harvesting and Data collection Data on plant height, dry matter of leaves and stem was measured from 20 to 60 DAS with 10 days intervals. Dry matter was determined by uprooting three plants from each plot and drying them in the oven. Days to flowering, pod length (cm), no. of pods plant-1, and no. of seeds pod-1 were recorded from ten pre-selected plants. Thousands of seed weight, seed yield, stover yield, biological yield and harvest index were recorded after harvesting, threshing and drying. Harvesting was done when 90% of the pod became blackish in color. Before harvesting 3 sampling plants from each plot were selected randomly and harvested for recording the data on different yield contributing characters. The crop was harvested from the central 1.0 m2 area excluding the border area. The pods were collected at each harvest time plot-wise and were bagged separately, tagged and brought to the threshing floor for yield data. Seed yield was determined at 12% moisture content. The stover yield was taken from the plants of the same area by sun-drying. Harvest index is the ratio of economic yield to biological yield and was calculated with the formula.
2.5. Data analysis The collected data was compiled and analyzed statistically using the analysis of variance (ANOVA) technique with the help of MSTAT-C software and the mean differences were adjusted by the Least Significance Difference (LSD) test at a 5% probability level.
World Journal of Advanced Research and Reviews, 2021, 11(01), 256–264
Journal