Show not necessary for roof roo J on cement manure pits where a manure pit Is built of 0 cement narl no real opportunity for the liquid manure to leach away there would bo be no rent real necessity of having a roof on the pit however one of tho the objects of it a roof Is to have the manure la in a place pince where it Is not so objectionable tio and the ammonia does not evaporate so rapidly if tile the pit Is 18 closed in however this evaporation can be prevented providing the manure Is kept mot moistened where a gryt grat deal of liquid manure Is 1 obtained which Is usually the case lit in up to date dairy barns the manure would not dry out especially if there was not too much bedding in it if there was considerable bedding an and d not suni clent liquid manure going with the manure from day to day into tho the pit it would ge be necessary to use hose or some other means of wetting down the pile with horse lionso manure which dries out very rapidly it nearly Is accompanied by a large larg amount of dry litter and it Is very essential sent lall that the manure be packed and dampened frequently y this would also be true in dry times eyen though it had no roof unless a very good absorbent Is used for bedding horse manure will go into tile the pit somei somewhat ahat dry dr and consequently it needs a great deal of wetting down in order to prevent it from heating to such an extent as to dry it out it A moore bloore wisconsin college of agriculture |