148 



the floats, (h) At Spartanburg: Two and one-tenth acre plats were 

 used. Xo nitrog'en or potash was api)lic'd on either jjhit. The yiekl 

 was at the rate of 20.8 bn. per acre with shig, and 18.75 bu. witli floats. 

 ' The averages agree very ck)sely with the resuks of the test at each 

 farm. Slag shows a slight but steady superiority."' 



Fertiliser's- on irheat. — At the S]:)artanbnrg farm : These experi- 

 ments were similar to those witli oats mentioned above, but were more 

 elaborate. Potash, phosphoric acid, and nitrogen were applied singly 

 and in Aarious combinations. On account of the poverty of the soil, 

 and to test the efl'ects of lieaA'v manuring, amounts of the fertilizing 

 ingredients estimated to be contained in about 50 bushels of grain per 

 acre were applied. One-twentieth acre plats were used, and all the 

 tests except tAvo were duplicated. In spite of the poverty and poor 

 condition of the soil the Avheat on a number of the fertilized plats 

 promised a large yield, but Avas seriously injured by rust just before 

 harA^est. The yields Avere all very small. On the unfertilized plats, 

 and AAdiere single fertilizers Avere used, they aA^eraged from 2 to 4 

 l.)ushels per acre. There Avas a remarkably close agreement betAveen 

 the yields of the du])licate plats in each test, the average difference 

 being only about one-half bushel of grain per acre. The folloAving 

 are among the results stated: (1) Nitrate of soda, muriate of potash, 

 and acid phosphate applied singly produced no Aaluable result. ' 

 (2) Nitrogen A\-hen used alone did no good, but in combination Avith 

 pliosphoric acid greatly improved the ci-op, (8) Phosphoric acid 

 gave the most pronounced results. 



I'ests of varieties. — (1) Oatx. — The A'arieties tested Avere: Eed Rust- 

 proof, Georgia Grazing. Black Russian. AVide AAvake, Badger Queen. 

 Red Rust-Proof, a variety " kighly esteemed in this section,*' gaA'e the 

 largest yield (35 bushels per acre). Georgia Grazing gaA^e about the 

 same total produce (120 pounds more straAV pnd SO pounds less 

 grain). (2) Wheat. — Details of tests of eighteen A^arieties are given 

 in tabular form. In order to test the effect of change of climate the 

 :ieeds of Fultz. groAvn in Virginia and Illinois, Avere planted along- 

 side of kome-groAvn seed of the same variety, and seed of the Red 

 May from Illinois Avere similarly compared Avith seed of the same 

 .sort from South Carolina. The yiekl in both cases Avas decidedly in 

 faA'or of home-groAvn seed, a result '" opposed to the opinion prev- 

 alent in some quarters that change of seed is desirable." 



TENNESSEE. 



Tennessee Agricultural Experiment Station. 



Department of the Liiiiersitij of Tennessee. 

 Location, Knoxville. Director, Charles W. Dabney, jr.. Pli. D. 



BULLETIN A'OL. 11. No. 1. J.ANUARY, 18S9. 

 Notes on fertilizers and fertilizin(; materials. W. E. Stone, 

 Ph. D. (pp. 3-24).— This contains analyses of fertilizing materials 



