USG applicator was designed for two rows application of fertilizer in a single pass using AutocAD drawing tools. According to the design, prototype was fabricated in the research workshop and tested in the laboratory and BRRI research fields. During the test, problems regarding USG dispensing efficiency, USG clogging, furrow opening and covering and depth of placement of USG were collected for further improvement of the applicator. After rectification of the problems, field trials were conducted in the farmers’ field during Aman 2011 and Boro 2012 seasons. BRRI USG applicator was tested using urea mega granules (2.7 gm size of USG) in both laboratory and field condition to observe the performance. During the test, following data were collected: USG dispensing efficiency (%), Depth of placement (cm), Accuracy of placement between rows (%), Walking speed (km hr-1), Field capacity (ha hr-1). There are three options to adjust the spacing of the applicator considering the line to line distance of the transplanted rice. two nuts of the main axle, four nuts of the frame and two nuts of the handle have to be adjusted among the three options of 18, 20 or 22 cm considering the existing line spacing of the transplanted rice before field operation. Data were collected on: Time required to apply urea in the field (hr ha-1) for all treatments, capacity of BRRI USG applicator and manual application of USG, Plant height and tiller number at different, days after transplanting, Yield and yield components. Total number of six field trials was conducted in BRRI research farm, gazipur and Brri regional stations of Kushtia, rajshahi, rangpur, Comilla and one in farmer’s field, Netrakona to observe the field performance of the applicator. Eleven field trials were conducted in different locations of the country during Boro 2011 season. the locations were (i) Baria, sadar upazila, Kushtia (Kushtia-1), (ii) tarapur, Kumarkhali upazila, Kushtia (Kushtia-2), (iii) richi, sadar upazila, Habiganj (Habiganj-1), (iv) churango-rayer-para, Baniachang, Habiganj (Habiganj-2), (v) BRRI RS, Habiganj (Habiganj-3), (vi) Kharataiya, Burhichang upazila, Comilla (Comilla-1), (vii) Narpati, Laksam upazila, comilla (comilla-2), (viii) Akkelpur, sadar upazila, rangpur (rangpur-1), (ix) challisha, sa dar upazila, Netrokona (Netrokona-1), (x) gohalakanda, Purbadhala upazila, Netrokona (Netrokona-2) and (xi) Khasba, Paba upazila, rajshahi (Rajshahi-1).