228 KXPEKIMENT STATION RECORD. 



A te.st with 7 dittorent forms of potash for soy beans was beg-un in 

 1898 and continued with potatoes in 1899. All the different forms 

 used increased the yields, but the yields from the same potash salt on 

 the duplicate plats did not always occupy the same relative rank. 

 The best average yield for potatoes was obtained on the high-g-rade 

 sulphate plat. Plats receiving- carbonate of potash-magnesia ranked 

 second, and the low-grade sulphate plats third. Kainit ranked lowest 

 in 3'ield of all the salts employed. 



Experiments with leguminous crops as nitrogen gatherers seemed 

 to show no benefit to the succeeding crops from growing soy beans. 

 Clover gave nearly as good average results on plats which had received 

 no nitrogenous fertilizers for 11 years as on the plats which had been 

 well fertilized with different forms of nitrogen during that time. 

 Tests of different forms of nitrogen for farm crops showed them to 

 rank on the average in the following order: Nitrate of soda, barnyard 

 manure, dried blood, and sulphate of ammonia. 



Experiments have been under wa}^ since 1891 to test the relative 

 value for garden crops of (1) sulphate of ammonia, nitrate of soda, 

 and dried blood as sources of nitrogen, and (2) muriate and sulphate 

 as sources of potash. Partiall}^ rotted stable manure was applied to 

 all the plats in 1898 and 1899. Barnyard manure alone has given the 

 best results with celery, spinach, onions, table beets, and squashes. 

 Sulphate of ammonia, when used with barnyard manure, was the most 

 satisfactory form of nitrogen for strawberries and cabbages, and 

 nitrate of soda the most satisfactory form for celer}', lettuce, spinach, 

 *and onions. Of the 2 forms of potash, the sulphate gave the best 

 results with strawberries, celery, lettuce, spinach, onions, and cabbages. 



Data for tests of 94 varieties of potatoes are tabulated. Some 36 

 varieties produced yields averaging over 333 bu. per acre. In the 

 author's opinion good Northern-grown seed is of more importance 

 than name. The following varieties have made good 3'ields for 3 3^ears 

 or more: Beautv of Hebron, Dutton Seedling, Early Rose, Enormous, 

 Fillbasket, Prolific Rose, Restaurant, State of Maine. Thorburn, 

 Vanguard, and White Elephant. 



The experiment in using wood ashes, ground bone and nuiriate of 

 potash, and barnyard manure in rotation upon grass lands has been 

 continued. The average yields of hay and rowen obtained from the 

 plats fertilized with the different manures since 1893 have been as 

 follows: Barnyard-manure plats, 7,027 lbs.; bone and potash, 6,568 

 lbs., and Avood ashes, 6,294 lbs. per acre. 



Report on experiments conducted by the Ontario Agricultural 

 and Experimental Union, 1899 ( Ontni'io Agr. (lud Expl. I'n'wn Rpt. 

 1899, 2'p- -i'^-hi)- — I'h*' sununarized results obtained by the union in 

 experiments with certain field crops and fruits are reported. The 

 experiments involved tests of commercial fertilizers for corn and 



