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Effect of Round Up as Presowing Application on Yield of Wheat

Ahsan Ali
Regional Station, Bangladesh Wheat and Maize Research Centre, BWMRI, Gazipur-1701, Bangladesh.

Golam Faruk
Regional Station, Bangladesh Wheat and Maize Research Centre, BWMRI, Gazipur-1701, Bangladesh.

Abu Hena Sorwar Jahan
Bangladesh Agricultural Research Institute, BARI, Gazipur-1701, Bangladesh.

Afzal Hossain
Bangladesh Rice Research Institute, BRRI, Gazipur-1701, Bangladesh.

Samsul Huda
Agricultural Research Station, BARI, Dinajpur-5200, Bangladesh.

Abstract/ Executive Summary:

To learn the dose and when to apply round-up prior to seeding wheat in a late-sown climate, a field experiment was undertaken at the Regional Wheat Research Center of BARI's Joydebpur site in Gazipur during Rabi season 2019-20. Four optimum doses and specific time of application were applied as pre-emergence. The treatments were T₁= round-up application @3 liters/ha at 5 days before sowing (DBS), T₂=round-up application @6 liters/ha (3+3) at 5, 10 DBS, T₃=round-up application @9 liters/ha (3+3+3) at 5, 10 and 15 DBS, T₄=round-up application @12 liters/ha (3+3+3+3) at 5, 10, 15 and 20 DBS and T₅= No round-up application (Control). The best weed control is accomplished by round-up application @ 6 liters/ha (3+3) at 5, 10 DBS. In randomized complete block design (RCBD), three replications were performed. Major weeds like Bathua (Chenopodium album), Biskatali (Polygonum hydropiper), Maloncha (Alternanthera philoxeroides), Banpalong (Sonchus arvensis) Chapra (Elusine indica), Banmasure (Vicia sativa) were found in experimental plots. As profoundly lower weed count m2 (125) in T₄=Round up application @12 liter/ha (3+3+3+3) at 5, 10, 15, and 20 DBS and Maximum weed control efficiency (78%) was found when round-up was applied @ 6 liters/ha (3+3) at 5, 10 DBS and applied @ 9 liters/ha at 5, 10, and 15 DBS at both 25 and 50 DAE. The number of spikes/m² and the biological yield of wheat showed a significant difference and the remaining parameters were insignificant. With round-up treated at 6 liters per hectare at 5 and 10 DBS, a 2.43-t/ha grain yield was obtained. The control plot's lower grain yield (1.71 t/ha) was discovered to be a numerical value. The BCR of 1.16 was discovered when round-up was administered at 6 liters per hectare (L/ha) at 5 and 10 DBS.

Keywords: Herbicide, Round-up, Pre-application, Weeds, Wheat

Location: Regional Wheat Research Center of BARI's Joydebpur

Start Date: 00-12-2019

End Date: 00-03-2020

Program Area: Crop-Soil-Water Management

Commodity: Wheat

Objectives:

To find the ideal dose and period of application before seeding wheat to get the maximum yield.

Methodology:

An experiment was done in the Wheat Research Institute in Gazipur, Bangladesh, during the rabi harvest season (December 27, 2019, to March 2020). In the Agro-Ecological Zone, the soil is Silky clay loam with a ph of 6.3. (AEZ 28). In the rabi season, the trial period means temperatures ranged from 120 degrees Celsius to 330 degrees Celsius. For the specified periods, the humidity was between 65% and 90%. In January, sunshine was on average 4 hours each day; however, it was 8 hours each day in March. The rainfall in November was approximately 23mm, while March's precipitation was about 14mm, and April's measurement was about 75mm in the research area. Experiment design In the 2019-20 Rabi season, researchers used a randomized complete block design (RCBD) with five treatments and three replications to conduct their experiment. The research plot consisted of 10 rows and 2 meters by 3 meters long and was laid out in line with 20 centimeters between rows and continuous sowing after one inch. Treatments Details T₁ Round-up application @ 3 liters/ha at 5 days before sowing (DBS) T₂ Round-up application @ 6 liters/ha at 5 and 10 DBS T₃ Round-up application @ 9 liters/ha at 5, 10 and 15 DBS T₄ Round-up application @ 12 liters/ha at 5, 10, 15 and 20 DBS T₅ No round-up application (Control). Experiment soil types Soil samples were collected from the research experimental field area and sent to the laboratory to analyze physicochemical characteristics. A soil pH of 6.3 was found in the experiment field area, lack of organic materials in the soil (5 g kg soil) with total N (4.5 g kg soil) and P (7mg P kg soil). Experiment procedure. BARI Gom 33 (seed rate of 140 kg/ha) was used as a tested variety in this experiment. The crop was fertilized with cow-dung 5 ton /ha and 230-150-100-110-20-10 Kg/ha of NPKSZB, respectively. Cow dung was applied at the time of land preparation. Two-third of the N and the rest of the other chemical fertilizers were applied in the last cultivation of the land preparation. The remaining one-third of N was applied as a top-dressing 17-21 days after sowing, corresponding to the CRI stage after irrigation. Weed samples were collected at 25 and 50 DAE from four randomly selected locations using a 1mx1m quadrate from each weed plot, and fresh weight and oven-dry weight of weed data were recorded. Weed samples were oven-dried at 70°C for 72 hours until the weight was constant. The crops were harvested on March 21, 2020. Grain yield and yield contributing character were recorded and analyzed statistically according to the software of statistic-10. Means data were adjusted by LSD value test at a 5% level of significance. All-weather information data was taken from the weather observation Centre of the BARI campus in Gazipur. The data was including weekly mean maximum, minimum air temperature, rainfall, sunshine hour, and Humidity.

Source of Information: Asian Journal of Crop, Soil Science and Plant Nutrition, 05(02), 193-205, 2021

Article Link (Online Journal): DOI:? ?https://doi.org/10.18801/ajcsp.050221.24

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The farmer prefers herbicide for the maintenance of weeds. Round-up is the main function of pre-sowing applications for weed management. The study results conclude that the application of Roundup @ 6 liters/ha at 5 and 10 days before sowing may be suitable for getting weed management, higher yield, and economic return for very late sown (27 December) wheat cultivation.

Knowledge Management: Journal