Agriculture, Forestry and Fisheries 2014; 3(1): 23-27 Published online October 20, 2014 (http://www.sciencepublishinggroup.com/j/aff) doi: 10.11648/j.aff.s.20140301.14 ISSN: 2328-563X (Print); ISSN:2328-5648 (Online) Effect of different levels of fertilizer and irrigation on the yield of wheat under raised bed system Khokan Kumer Sarker 1 , Dilip Kumar Roy 1 , Akbar Hossain 2 , Mohammed Monirul Islam 3 1 Irrigation and Water Management (IWM) Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, 1701, Bangladesh 2 Senior Scientific Officer, Wheat Research Centre, BARI, Nashipur, Dinajpur, Bangladesh 3 Bangladesh Agricultural Development Corporation, Shera-Bangla Nagar, Dhaka Email address: ksarkerwrc@gmail.com (K. K. Sarker), droy49@gmail.com (D. K. Roy), tanjimar2003@yahoo.com (A. Hossain), mmonir_islam@yahoo.com (M. M. Islam) To cite this article: Khokan Kumer Sarker, Dilip Kumar Roy, Akbar Hossain, Mohammed Monirul Islam. Effect of Different Levels of Fertilizer and Irrigation on the Yield of Wheat under Raised Bed System. Agriculture, Forestry and Fisheries. Special Issue: Agriculture Ecosystems and Environment. Vol. 3, No. 1, 2014, pp. 23-27. doi: 10.11648/j.aff.s.20140301.14 Abstract: The study was conducted on raised bed (one pass) tillage system on the effect of fertilizer and irrigation levels at Wheat Research Centre, Nashipur, Dinajpur (25°38´ N, 88°41´ E and 38.20 m above mean sea level). Treatments were: T 1 ; recommended fertilizer dose of N 100 + P 26.5 + K 40 + S 20 + Z 4 + B 1 with irrigation up to 75% field capacity, T 2 ; recommended fertilizer dose with irrigation up to 100% field capacity, T 3 ; recommended fertilizer dose with irrigation up to 125% field capacity, T 4 ; 20% lower fertilizer dose than recommended dose with irrigation up to 75% field capacity, T 5 ; 20% lower fertilizer dose than recommended with irrigation up to 100% field capacity, T 6 ; 20% lower fertilizer dose than recommended with irrigation up to 125% field capacity. Irrigation water was applied at growth stages of 20, 55 and 75 days after sowing (DAS). Data on seasonal water use, yield and yield contributing characters of wheat were recorded during experimentations in raised bed cultivation systems. Results from this study indicated that the effect of fertilizer and irrigation level did not influence the grain yield and yield attributes of wheat under raised bed system. But, higher grain yield was found in the plots where recommended fertilizers were applied with irrigation up to 100% field capacity. Seasonal water was used by 211 – 231 mm and water use efficiency was found 1.53 – 1.78 kg m -3 by the treatments effect for one pass-tillage raised bed system. The short-term findings of this study raise the further crop physiological, fertilizer use efficiency and economics return study to confirm the results. Keywords: Bed Planting System, Fertilizers, Irrigation, Water Use Efficiency, Wheat 1. Introduction Wheat is the second most important cereal crop after rice in Bangladesh and its area and production has decreased by 0.34 million hectares and 0.47 million tons, respectively, while unit yield has increased by 0.7 ton per hectare from 2000 to 2014 [1; 2; 3]. Wheat is a strategic crop and it is highly responsive to irrigation water during the short winter season between November and March. So, water and fertilizer plays a vital role in crop production management. Application of only one irrigation increase the yield of wheat by more than 40%, whereas two to three irrigations with proper water and fertilizer management practices increase wheat yield by 50-100% [4]. Water should be utilized for optimum and economic yield. Modern High Yielding crop practices system can be sustained only with good water control and management at the farm level. Optimum water availability to plants during their growth is essential for realizing the full yield production. Every year crop production is essential to increase due to more and more efficient utilization of water through better management practices [5]. Bed planting is practiced in many parts of the world to reduce the cost of production and irrigation water [6]. Raised beds were introduced to Rice-Wheat systems of the Indo-Gangetic Plain (IGP) in the mid 1990s, initially for wheat, inspired by the success of irrigated maize-wheat on permanent raised beds (PRB) in Mexico. Many advantages of growing wheat on beds have been reported including increased yields, opportunities for mechanical weeding and improved