Show Farmers Are Given Old Fertility Test Pennsylvania Plots Show Results Results' of Treatment The file fertilizer experiments nt ot the 1 State Stute college collee were started startEd start start- ed od in 1881 1851 and antI have been In progress I ro ress ever er since Proto Prof K F. D D. Gardner er head of the agronomy department told the Crop Improvement cUl ut association at the time Maryland l a Farm arm ram Bureau U Federation And It Is now meeting held recently I possible to draw some iome rather definite conclusions as us to what may be expected ex ex- from froni time long fertilizer trent treat m ment When applied at the rate rale of at six I tons toils per acre on these plots manure has been worth wurth 38 per vet ton but atthe at al atthe the rate of 10 tons tuns t ns hits bus been worth ont only 2 per ton toil showing shO that the most profitable use of C manure Is to spread pread the limited amount over a larger acreage age rather r than applying It more inure heavily II on a smaller acreage In tIne the light of oC more than 40 years years' results from these e oldest ol est of all fer fertility experiments in the time United States tates draws the Professor sor Gardner skins siems that complete fertilizers have ha maintained crop yields s approximately and as econom economically as us w well as ns manure manUle Just If co cost t of the tle manure Is tal taken en enas as 1ST per ton Ills recommendation to farmers runners Is to use manure and an com corn the mercial fertilizer according to soil needs and practice a goo good rota rota- tion lIe He enumerates rates the definite practices practices practices tices that farmers of ot his state could I profitably follow on the basis of time tile Pennsylvania experiments For corn six tons of or manure supplemented sup sup- with acid phosphate For oats on depleted ted soils solis pounds of ot acid phosphate For wheat complete fertilizer to pounds per acre acre I For clover nn and timothy oth hay nothing with nitrate nitrate nitrate nit nit- nit nit- For timothy thy rate of soda Sufficient lime l ne In ln sonic some form rm tO o grov Sro good cl clover t r r c |