A.K.M.R. Amin
Professor
Department of Agronomy, Sher-e- Bangla Agricultural University (SAU), Dhaka-1207
S. Reza
MS Student
Department of Agronomy, Sher-e- Bangla Agricultural University (SAU), Dhaka-1207
Organic manure, Water deficit, Growth stages, Yield, Wheat
Agronomy, Sher-e- Bangla Agricultural University (SAU), Dhaka-1207
Crop-Soil-Water Management
Water management, Wheat, Cowdung, Wheat, Water Shortage
A pot experiment was conducted at the net house of the department of Agronomy, Sher-e- Bangla Agricultural University (SAU), Dhaka-1207, during the period of November 2018 to March 2019. The experimental field was located at 24o09' N latitude and 90026' E longitude at a height of 8.5 m above sea level (FAO/UNDP, 1988). The soil of the experimental site was clay loam belonging to the “Madhupur Tract” under AEZ 28. Two factors experiment were- factor A: Five levels of cowdung, viz.i) C0= Control (No cowdung), C1= 25% less cowdung of recommended dose, C2 = Recommended dose of cowdung, C3 = 25% higher cowdung of recommended dose and C4 = 50% higher cowdung of recommended dose, and factor B: four levels of water deficit at, i) D0 = Control (No water deficit), D1= Crown root initiation stage (20- 19 DAS), D2 = Booting stage (45-54 DAS) and D3= Anthesis stage (55-64 DAS) (Amin and Baque, 2020). The experiment was laid out in a Factorial R and randomized Complete Block Design with three replications. The test crop variety of wheat was BARI Gom28. Sixty earthen pots measuring 22 cm diameter and 18 cm height were fill-up with 20 kg of soil. Urea, TSP, MoP, Gypsum, Zinc oxide, and Boric acid were used at the rate of 200, 72, 66, 110, 4, and 5 kg ha-1, respectively (BRRI, 2006 / FRG, 2018), which were 2.00, 0.72, 0.66, 1.10, 0.04 and 0.05 g pot-1, respectively and mixed all of them except urea with the soil before fill-up the pot. Urea was applied in three equal installments at pot filling, 21 DAS, and 55 DAS. The recommended dose of cowdung was 10 t ha-1 and was applied as per treatment. Seeds of wheat variety BARI Gom28 were collected from Bangladesh Agriculture Research Institute (BARI), Joydebpur, Gazipur. Before sowing, seeds were treated with Provex 200EC @ 2.5 g powder for kg-1 seed. Fifteen seeds were sown in each pot on 21st November 2018. After sowing, the seeds were covered with soil and lightly pressed by hand. For assessment, five plants were kept in each pot after 14 DAS. Different intercultural operations were done to ensure normal growth and development of the crop except irrigation. Irrigation was applied as per need of treatment of the experiment where irrigation was not applied during water deficit imposition period(s) treatments. On the basis of physiological maturity, the crop was harvested from 4-10 March 2019. Data on different crop characters, yield attributes, and yield were collected from the harvested five plants from each pot. Post-harvest operations like- threshing, cleaning, and drying of grains were done separately for each treatment. Properly dried grain and straw were weighed and converted into g plant-1 basis. The collected data of each pot were statistically analyzed by using the computer-based software Statistics 10. Mean differences among the treatments were compared with Duncan’s Multiple Range Test (DMRT) test at a 5 % level of significance.
Bangladesh Agron. J. 2021, 24(1): 93-100
Journal