Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
Online published on 15 September, 2014.
Urea Super Granule (USG) application in paddy filed is an innovative technology to reduce the nitrogen fertilizer losses in the field. The best model among the available USG applicator was selected and modified it to improve the performance. In the field test, with USG size of 2.7 gm, effective field capacities of the improved applicator and the BARI model were found 0.154 ha/hr and 0.147 ha/hr, respectively. Similarly, with USG size of 1.8 gm, the effective field capacities of improved applicator and BARI model were found 0.146 ha/hr and 0.144 ha/hr, respectively. The missing rate, holding more than one USG per cup, breakage & dust formation of BAU model were found 1.83%, 0.61% and 2.63%, respectively in case of USG size of 2.7 gm and 1.22%, 3.05% and 1.5%, respectively in case of USG size of 1.8 gm. On the other hand, the missing rate, holding more than one USG per cup, breakage & dust formation of BARI model were found 12.8%, 6.71% and 7.93%, respectively, in case of USG size of 2.7 gm and 10.97%, 9.76% and 6.5%, respectively, in case of USG size of 1.8 gm. Most of the indentified problems of BARI model have been solved and the improved version of USG applicator (BAU model) may be accepted for demonstration and dissemination in farmer field.
USG applicator, BAU model, Push type, Field Performance
