Effect of Urea-Nitrogen, Cowdung, Poultry Manure and Urban Wastes on Yield and Yield Components of Boro Rice

A field experiment was carried out at Bangabandhu Sheikh Mujibur Rahman Agricultural University Research Farm, Gazipur during boro season of 2006–2007 to asses, evaluate and examine the effect of urea- nitrogen, cowdung, poultry manure and urban wastes on growth and yield of transplant boro rice, cv. BRRI Dhan 29.. The soil belongs to the Shallow Red Brown Terrace Soil type (Salna series) of the Madhupur Tract (AEZ 28) and is classified as Inceptisols. BRRI Dhan 29, a high yielding variety, was used as the test crop in the boro season. The variety was released by Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur for boro season. The life cycle of the variety ranges from 140–145 days in boro Season (BRRI, 1995). A well puddled land was selected for seedling raising. The sprouted seeds were sown uniformly as possible and covered with thin layer of fine earth. Proper care of the seedlings in the nursery was taken. Land preparation was started on 15 December, 2006. First it was ploughed with a power tiller. Then it was saturated with irrigation water and finally prepared by successive ploughing and cross ploughng followed by laddering. The weeds, stubbles and crop residues were removed. The experiment was laid out in the randomized complete block design (RCBD). The entire experimental area was divided into 3 blocks representing the replications to reduce soil heterogeneity and each block was subdivided into 10 unit plots with raised band as per treatments. Thus, the total number of unit plots was 30. The unit plot size was 4.0 m × 2.5 m and the plots were separated from each other by bands (25 cm). The blocks were separated by 50 cm drains. The treatments were randomly distributed within each block.