EFFECTS OF FERTILIZERS AND MANURES WITH DIFFERENT IRRIGATION MANAGEMENT ON TILE YIELD AND NUTRIENT CONCENTRATION IN BRRI dhan29

Abstract

The experiment was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka. Bangladesh during the period from December 2012 to May 2013 know the effect of fertilizers and manures with different irrigation management on the yield and nutrient concentration in BRRI dhan29. The experiment consisted of 2 factors I. e. irrigation and fertilizer plus manure. Three levels of irrigations (11 = Continuous flooding, 1,= saturated condition and 13 = Alternate wetting and drying) were used with 8 levels of fertilizers plus manures, such as To : Control, T1: N1 20P2 K60S29Zn2 (Recommended dose). '12: 50% NPKSZn + 5 ton cowdung ha". T3: 70% NPKSZn + 3 ton cowdung ha". T4: 50% NPKSZn + 5 ton compost ha". T5: 70% NPKSZn + 3 ton compost ha". T6: SO% NPKSZn+ 3.5 ton poultry manure ha" and T7: 70% NPKSZn ± 2.1 ton poultry manure were used. At the harvest, the yield parameters and total yield were recorded; the irrigation had no significant single effect on the yield and yield parameters while the highest yield was obtained from continuous flooded condition. The yield contributing characters and yields were significantly affected by fertilizer and manure. The highest grain yield and straw yield were found from Recommended dose of fertilizer though it was statistically similar with 70% NPKSZn-t-2.1 ton poultry manure/ha treatment and lowest in control treatment. The yield parameters were not significantly influenced by combined application of irrigation and fertilizer. Though the highest grain yield (7.36 t/ha) was recorded from Alternate wetting and drying with 70% NPKSZn+2.1 ton poultry manure/ha. Irrigation significantly influenced the grain nutrient concentration except K concentration. The higher levels of P and K concentration were recorded from Alternate wetting and drying treatment. The grain nutrient concentrations of I3RRI dhan29 were significantly affected by the application of fertilizers and manures. The higher grain nutrient concentrations were found in the treatments where lCrtilizers were used in combination with poultry manure. The highest P concentration in grain was recorded from alternate wetting and drying with 50% NPKSZn ± 3.5 ton poultry manure ha". The higher concentrations of grain K and S were found in the treatments where fertilizers were used in combination with poultry manure.