MA Aziz*, MS Hossain

Department of Soil Science, Sylhet Agricultural University, Tilagor, Sylhet, Bangladesh

ABSTRACT

Two experiments were conducted at farmer’s field, Alampur, Sylhet during T. aman season 2012 and Boro season 2013 in order to find out the suitable application method of USG (urea super granule) for wetland rice. Six treatment combinations were tested in T. aman season: T1 = N –control (N0), T2 = USG deep-placement @ 50 kg N/ha, T3 = USG broadcast @ 50 kg N/ha, T4 = USG deep-placement @ 75 kg N/ha, T5 = USG broadcast @ 75 kg N/ha, T6 = Prilled urea on STB (soil test based). BRRIdhan 41 was used as test crop. Six treatment combinations were tested in Boro season: T1 = N –control (N0), T2 = USG deep-placement @ 75 kg N/ha, T3 = USG broadcast @ 75 kg N/ha, T4 = USG deep-placement @ 125 kg N/ha, T5 = USG broadcast @ 125 kg N/ha, T6 = Prilled urea on STB. The blanket doses of fertilizers were applied on STB. The experiments were laid out in randomized complete block design with 3 replications of each treatment. The sources of N, P, K & S were USG, triple super phosphate (TSP), muriate of potash (MP) and gypsum. Cumulative data showed that the treatment T4 where USG was deep-placement produced the maximum yield and also found superior in terms of economic point of view.

Key words: urea super granule (USG), different application method, wetland rice

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E-mail address: azizsoil@yahoo.com (MA Aziz)                                                                                             Full Text (PDF)