4SC^ EXPERIMENT STATION RECORD. 



protein content of the liay, and notes upon tlie experiments. The sea- 

 son was so favorable for hay production that the effect of the fertilizers 

 was minimized, and they did not give a profit 5 but snperphosphate 

 increased the yield on soils containing 0.173, 0.062, and 0.079 per cent of 

 phosphoric acid, and potash on soils having a potash content of 0.854, 

 0.028, and 0.18 per cent, while lime increased the yield where the lime 

 content was 0,29 per cent, but did not do so where the content was 1.C8 

 or 0.27 per cent. The author believes that an application of lime will 

 be effective only when the soil is rich in potash. 



Soil test with field corn at Dover, W. H. Bishop [Delaware Rpt. 

 18!)5j pp. ;J;J9-.^^'i;?). — Previous work in this line was published in the 

 Annual Eeport of the station for 1892 (E. S. K., 5, p. 780). 



Five check j^lats, 1 gyx)sum plat, and 10 others fertilized with nitro- 

 gen, j)hosphoric acid, and potash alone, and in combinations of 2 and 3, 

 were planted to corn. June 2, following a crop of crimson clover plowed 

 under. 



The yields calculated to a full stand are tabulated. The author con- 

 siders that a croi) of pea vines and one of crimson clover plowed under 

 have kej)t np the fertility of the soil for years; that applications of 

 nitrate of soda in combination with other elements were not profitable 

 in 1891; that tlie largest crops in 1891 followed applications of potash; 

 that phosphoric acid was second to potash in this regard, and that 

 either applied alone is profitable. 



Fertilizer test on svreet corn, W. H. Bishop {Delaivare Sta. Rpt. 

 Itl'Jo, pp. 238, :J39). — Evergreen sweet corn was grown on twentieth- 

 acre plats differently fertilized. The plats receiving potash gave the 

 largest yields, but the author thinks this due to the protective influence 

 of the potash against an unknown disease which seriously affected 

 plants on other plats. 



Maize, A. A. BrtCtHA:m {Inaiuj. Diss. GotUngen, 1896., pp. 5i). — After 

 discussing the origin, distribution, variability, and uses of maize, and 

 the methods of culture followed in America, the author considers the 

 relations between the different parts of the plant and the yield of grain 

 in the Longfellow variety. The points considered were weight (fresh 

 and air dry) of the whole plant, of plant without suckers, of the suck- 

 ers, of leaves, and whole stalk; length of whole stalk, length of each 

 internode, diameter of each node, length of each sheath and of each 

 leaf, maximum breadth of each leaf, length of the ear and weight (air 

 dry), number of kernels on each ear; weight (air dry) of the kernels on 

 each ear, weight of the cob (air dry), and of the butt and husks. The 

 data are tabulated and discussed. Among the conclusions the author 

 states that an increase in the weight of corn is accompanied by an 

 increase in the weight of the plant, number of kernels, length of ear, 

 weight of cob, butt, husks, suckers, and leaves, an increase in the weight 

 of the individual kernels, and likewise in the percentage of grain com- 

 pared with the weight of stalks. 



