It is very difficult to recommend any dose of these manures ( Farmyard manure , poultry manure , sheep manure ) for any crop , for the simple reason , the nutrient value of these manures are so variable over space and time , that your own recommendation will not stand CORRECT when tested over a time on a GIVEN soil. Secondly , the variation in residual effect of these manures , dictated primarily by the C:N ratio , soil microbial diversity ( Structural and functional ) , growing conditions , crop type( Annual versus perennial ), fallow period , ... keep on narrating one after other. The best course again would be to get soil tested , tailor the manurial requirement as per crop removal pattern , especially for P and K ( Exception of poultry manure rich in P ) . Simultaneously, get your manure tested for quality in terms of microbial abundance , nutrient concentration , salt INDEX etc ..to compute the manure requirement equivalent with crop annual nutrient requirement .