2025/07/18 by Muhie, Seid Hussen, Sisay Amare, Biruk Masrie
paper · doi:10.20372/nadre:9474
Hot pepper is one of the most important vegetables and spice crops cultivated<br> in many parts of the world including Ethiopia. The crop is known for<br> its nutritional value and as spice. It’s productivity is low due to low availability<br> of soil nutrients. Much research was conducted to investigate the<br> response of pepper to inorganic fertilizers such as DAP and Urea. However,<br> information about the effect of Blended fertilizers such as NPSB and its<br> combination with Urea is scanty. This research was therefore conducted to<br> investigate the response of hot pepper to blended NPSB and urea fertilizer<br> rates at Kobo, North Wollo. Four rates of NPSB (0, 100, 200, and 300 kg<br> ha1) and four rates of urea (0, 50, 100, and 150 kg ha1) in factorial combination<br> were laid out in Randomized Complete Block Design with three<br> replications. The results revealed that the interaction effect of NPSB and<br> urea was significant on many of the parameters considered. Treatments<br> that received fertilizer combination of 300 kg NPSB ha1 and 150 kg urea<br> ha1 gave the tallest plants (79.76 cm) and maximum number of pods per<br> plant (45.50), while Treatments that received fertilizer combination of<br> 200 kg NPSB ha1 and 150 kg urea ha1 gave the highest total pod fruit<br> yield (30.08t ha1) and maximum marketable yield (29.48 t ha1) in the<br> study area. Application of combined 200 kg ha1 NPSB and 150 urea kg<br> ha1is recommended for production of hot pepper at Kobo and similar<br> agroecologies as the highest net benefit (3548.86 US) with relatively high<br> marginal rate of return (2258.91%) were recorded. However, as the present<br> study was done only in one location for one season, it would be worthwhile<br> to repeat it in order to arrive at a sound conclusion.