FEASIBILITY OF REPLACING CHEMICAL FERTILIZER BY USING ORGANIC FERTILIZER IN WHEAT (Triticum aestivum)

Abstract

The experiment was conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period from October 2010 to March 2011 to study the feasibility of replacing chemical fertilizer by using organic fertilizer in wheat. The experiment comprised of 10 treatments, such as T0: Control condition; T1: All chemical fertilizer as recommended dose; T2: Cowdung as recommended dose; T3: Compost as recommended dose; T4: ½ Cowdung + ½ Compost; T5: Cowdung + Compost; T6: Cowdung + ½ Chemical fertilizer; T7: Compost + ½ Chemical fertilizer; T8: Cowdung + Compost +½ Chemical fertilizer and T9: ½ Cowdung + ½ Compost + ½ Chemical fertilizer. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on different growth characters and yield were recorded. Among the treatments all chemical fertilizers as recommended dose (T1) and cowdung + compost + ½ chemical fertilizer (T8) were found superior considering all yield contributing characters and yield. The treatments T7 (compost + ½ chemical fertilizer) and T9 (½ cowdung + ½ compost + ½ chemical fertilizer) also showed statistically similar results in respect of grain yield and most of the yield contributing characters. So, it is possible to reduce the use of chemical fertilizers by combined use of organic and chemical fertilizers without significant yield loss in wheat.