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Effect of Different Techniques of Urea Application on Rice Production

Asma Khatun
Department of Agricultural and Industrial Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur- 5200, Bangladesh.

Md. Kamal Uddin Sarker
Department of Agricultural and Industrial Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur- 5200, Bangladesh.

Md. Abdur Rahman
CSO
Bangladesh Rice Research Institute, Gazipur, Bangladesh

Md.Nazmul Huda
Department of Agricultural and Industrial Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur- 5200, Bangladesh.

Abstract/ Executive Summary:

Research work was carried out in order to determine the economic and effective method of urea application in rice crops (BINA Dhan-7). The experiment was conducted at Hajee Mohammad Danesh Science & Technology University (HSTU) Farm, Dinajpur during the Aman season of 2016 (June-November). The experiment was laid out in a Randomized Complete Block Design (RCBD) with four treatments and three replications. The treatments were: T₁ (194 kg/ ha urea at two equal splits), T₂ (Urea Super Granules @ 81.5 kg/ha), T₃ (2% foliar urea spray solution @ 45 kg/ha), T₄ (Prilled urea 138kg/ha). Both the growth and yield were significantly affected by different methods of urea application. In all of the cases for yield, plant height, and straw yield, T₂ gave the highest result. Application of USG @ 81.5 kg/ha produced 14.38% higher grain yield than traditional method T₁ (194 kg/ ha urea at two equal splits). Foliar spray of urea produced the lowest yield components and yield in this study. From this study, it can be concluded that Urea Super Granules @ 81.5 kg/ha may be used to obtain the best performance on growth and yield of transplant Aman rice cv. Binadhan-7. Therefore, the treatment T₂ (USG @ 81.5 kg/ha) can be recommended as the best management practice for obtaining a higher yield in transplant Aman rice.

Keywords: Urea Super Granules, Prilled urea, Foliar spray, Grain, Straw yield

Location: Hajee Mohammad Danesh Science & Technology University (HSTU) Farm, Dinajpur.

Start Date: 00-06-2016

End Date: 00-11-2016

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Rice

Objectives:

To find out the effect of different methods of application of urea fertilizer.

Methodology:

The experiment was conducted at Hajee Mohammad Danesh Science & Technology University (HSTU) Farm, Dinajpur during the Aman season of 2016 (June-November). Geologically, the experimental zone is located at 25⁰ 37' 16"N latitude and 88°38' 4" E longitude at the elevation above 37.50 m the sea level. There were different urea application treatments names T₁ (194 kg/ ha urea at two equal splits traditional hand broadcast), T₂ (Urea Super Granules @ 81.5 kg/ha), T₃ (2% foliar spray solution @ 45 kg/ha), T₄ (Prilled urea 138kg/ha using prilled urea applicator). Urea was applied in two equal splits for T₁. The first spilt of urea was top-dressed after 11 days of transplanting andthe second spilt of urea was top-dressed after 33 days of transplanting (panicle initiation stage). As per experimental specification, USG was placed at 8-10 cm depth after 7 days of transplanting in the middle of four hills in alternate rows. In the same process, prilled urea was also applied in the middle of four hills. Foliar urea was also applied in three equal splits after 9 days, 24 days, and 41 days of transplanting. The experiment was carried out in a Randomized Complete Block Design (RCBD) with 3 replications as factorial arrangement. The size of each plot was 4 m x 3 m. A basal dose of Triple Super Phosphate (TSP), Muriate of Potash (MP), Gypsum and Zinc Sulphate was used as a source of phosphorus, potassium, gypsum, and zinc at the rate of 148, 178, 100, 15 kg/ha respectively at the time of final land preparation. Thirty-five days old seedlings were carefully uprooted from a seedling nursery bed and transplanted in the main field at the rate of three seedlings per hill by maintaining a spacing of 15 cm x 20 cm. Intercultural operations were done properly. Natural precipitation was not found adequate. For this reason, irrigation was provided to maintain a 5-6 cm water layer in the plot until the crop attained maturity. The plant height was measured three times from the ground level to the top of the plant at 25, 50, and 75 days after transplanting. The collected data were analyzed statistically following the analysis of variance (ANOVA) technique and mean differences were adjudged by Duncan’s Multiple Range Test (DMRT) using a computer package program namely, SPSS version 22.0.

Source of Information: International Journal of Natural and Social Sciences, 2020, 7(2):05-09

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Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From this study, it was found that Urea Super Granules @ 81.5 kg/ha may be used to obtain the best performance on growth and yield of transplant Aman rice cv. Binadhan-7. Therefore, the treatment T₂ (USG @ 81.5 kg/ha) can be recommended as the best management practice for obtaining a higher yield in transplant Aman rice.

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