An experiment was conducted at El-Bossily Protected Cultivation Experimental Farm, Central Laboratory for Agricultural Climate (CLAC), Agricultural Research Center (ARC), at Behaira Governorate, Egypt, during the autumn seasons of 2010/2011 and 2011/2012 to study the Economic considerations of using different types of organic manure on sweet pepper yield under protected cultivation (Vermicompost, compost and Cattle manure at the rates of 2, 4 and 6% (1.8, 3.6 and 5.4 m3/plastic house of 540m2) were the organic fertilizer treatments. The study aimed to investigate increasing organic soil matter content in sandy soil via different rates and types of soil amendments as well as investigate their effects on vegetative growth and yield of sweet pepper using a split plot design with three replicates. Results obtained indicate that the increasing rate of the different soil amendments from 1.8 to 5.4 m3/plastic houses led to increase in vegetative growth and significantly enhanced early and total yield of sweet pepper. The benefit cost ratio (BCR) was maximum (1.67) in the treatment of vermicompost (4%), whereas the minimum (1.23) benefit cost ratio was obtained from cattle manure (2%) treatment in the first season. The benefit cost ratio (BCR) was maximum (1.72) in the treatment of vermicompost (4%), whereas the minimum (1.16) benefit cost ratio was obtained from compost (2%) treatment in the second season.