FIELD CROPS. 939 



hills. lu field experiments with corn at this farm the use of 300 lbs. of com- 

 mercial fertilizer in addition to 20 loads of barnyard manure resulted in a loss. 



At the Manitoba farm the 3 leading varieties, Thoroushbred White Flint, 

 Champion White Pearl, and Longfellow each yielded over 21 tons per acre 

 when grown in rows, but when grown in hills only Thoroughbred White Flint 

 retained its rank, with 23 tons, 4(J4 lbs. per acre, the next best yielding varieties 

 being Superior Fodder, Early Butler, and Red Cob Ensilage. At this farm 

 fodder corn planted in rows 30 in. apart gave the heaviest yield. 



At Indian Head, in the tests with the corn drilled in rows, Eureka ranked 

 first with a yield of 10 tons, 1,000 lbs. per acre, followed by Thoroughbred 

 White Flint, Pride of the North, Angel of Midnight, and Champion White 

 I'earl, all yielding over 15 tons. Eureka also retained its rank on the plats 

 where the corn was grown in hills, the yield being 17 tons, 980 lbs. per acre, 

 being followed by Angel of Midnight with 15 tons, 800 lbs. 



On the British Columbia farm. Pride of the North ranked first in yield under 

 both methods of planting, the corn grown in drills yielding 24 tons, 1,280 lbs., 

 and the corn grown in hills 23 tons, 1,300 lbs. Red Cob Ensilage and Giant 

 Prolific Ensilage, which ranked next in the drill corn tests, yielded 20 tons, 

 1,580 lbs., and 20 tons, 40 lbs. per acre, respectively. 



Miscellaneous. — The results of variety tests with peas, potatoes, sugar beets, 

 flax, buckwheat, root crops, grasses, and other forage crops at the different 

 farms are also reported. In a series of rotation experiments in progress at 

 Ottawa the largest profit per acre in 1906, $8.13, was secured on the land under 

 a 5-year rotation with clover hay, timothy hay, grain, corn, and grain. 



Results obtained in 1907 from trial plats of grain, fodder corn, field roots, 

 and potatoes, W. and C. E. Saunders {Canada Cent. Expt. Farm Bui. 5S, pp. 

 .'i3). — The results secured in 1907 in variety tests conducted at the Canada 

 experimental farms with different field crops are given in tabular form 

 with brief general notes. The reports of earlier years have been previously 

 noted (E. S. R., IS, p. 828). The testing of different varieties on uniform 

 trial plats has now been in progress for 13 years. The tables given show the 

 varieties in the order of their average yield for the last 5 years. 



Fertilizer tests with wheat and corn, H. Snydeb (Minnesota Sta. Bui. 102, 

 pp. 1-23, figs. 2, map 1). — Directions are given for making fertilizer tests with 

 wheat, and the results of 19 series of cooperative experiments in different parts 

 of the State are reported. In 11 tests an increase of from 2^ to 9 bu. per acre 

 was apparently secured from the use of 320 lbs. per acre of an acid phosphate 

 fertilizer costing $2.56. In 10 of the tests muriate of potash applied at the rate 

 of 160 lbs. per acre and costing $4 gave an increase. In 4 cases the increase 

 in yield from the use of potash was 5 bu. or more. Nitrate of soda used singly 

 gave a noticeable increase only in 2 cases. A complete fertilizer applied at the 

 rate of 600 lbs. per acre gave an increase of 2 to 9 bu. in 11 of the trials, but 

 in no case was the increase sufficient to pay the cost of the fertilizer, which 

 amounted to $8.40. In of the 11 tests approximately the same increase was 

 secured from the use of the phosphates alone, and in 4 of the 11 trials the 

 increase was secured from the potash alone, costing less than half as much as 

 the complete fertilizer. 



The results of 8 series of experiments with corn showed that the use of com- 

 mercial fertilizers for this crop was not profitable. 



It is stated tliat on old wheat lands potash fertilizers can be used to better 

 advantage than either nitrogen alone or a complete fertilizer. The conclusion 

 is drawn that commercial fertilizers when used in connection witJi crop rota- 

 43854— No. 10—08 4 



