Show MANURE M NURE IN CROP ROTATIONS Increased Yields Secured In Experiments ments at w West st Virginia and Ohio Experiment Stations The agricultural value of manure usually is greater than thim the plant-food plant value For example the application of 12 tons of manure a year for 15 years ears at the West Virginia experiment experiment experiment ment station gave Increased crop yields valued at 40 an acre a year or a ton for the manure used DurIng During Dur Dur- ing lag a n period of ten years the Ohio experiment ex ex- I station has obtained an Increase increase In In- crease of crops valued at a ton for the manure used The application was made maCle at the he rate of eight tons of manure an nn acre during a n year five rotation rotation ro ro- tation of corn wheat oats clover and timothy Two applications of four tons each were pre made one for corn and one for tor clover Manure used In 1 connection with continuous grain cropping did not maintain the yields but when u used ed In connection with crop rotation the yields of ot all crops were Increased |