Show MANURE IN CROP ROTATIONS increased yields secured in expert ments at west virginia and ohio experiment stations r tho the agricultural value of manure usually Is greater than tile plant food value for example tho the application of 32 tons of manure a year tor for 15 years nt at tho west virg virginia inan experiment station gave increased crop yields valued nt at 40 nil an acre acra a year or a ton for ue the manure inn used during a period of ton ten years tho ohio experiment peri perli ment nent station has hag obtained nn an in creaso of 0 crops valued at a ton for or the manure used tho the application was vas made tit nt tho the rate of eight tons of on an nere during a five year rotation of coni com wheat oats cuts clover and timothy two of four tons vach each were ninde ono one for corn and ono one for clover manure used in connection with continuous grain cropping did not maintain the yields but when used in connection etli crop rotation tho the yields of all crops were increased |