FIELD CROPS. 



727 



kernels matured on account of rust, but Mold Black and Improved Prize 

 Cluster produced the highest jaelds of straw. Rust and smut of oats are dis- 

 cussed and the formalin treatment for oats outlined. The more noteworthy 

 results of variety tests conducted are summarized in the following table: 



Results of variety tests uith small (/rains. 



Type of soil. 



Clay loam. 



Do.... 

 Clay 



Do.... 

 Clay loam. 



Do.... 

 Clay 



Do.... 



Heavy clay... 

 Stony loam . . . 



Clay and loam. 

 Clay 



Grain. 



Oats... 



..do.... 



..do.... 

 ...do.... 



..do.... 

 ...do.... 



..do.... 

 ...do.... 

 ...do.... 

 ...do.... 



Barley. 

 ...do.... 



Wheat. 



...do.... 

 Rye.... 



Total 

 num- 

 ber of 

 varie- 

 ties. 



Varieties makinj; 

 best vielil. 



Welcome 



Long White Tartar. . 



do 



Hamilton 



Kherson 



Long White Tartar . 



Welcome 



King 



Long White Tartar. 



Hamilton 



2-Rowed Browing. . 



Beardless 



Dawson Golden 



Chaff. 

 Fife and Blue stem. 



Weight 



per 

 bushel 



Lbs. 

 ,39. 50 

 40.50 

 32.00 

 34.50 

 28. 00 

 33. 50 

 32.50 

 30. 50 

 .34. 40 

 33. 10 

 53. 00 

 34.50 

 60.30 



58.75 

 56.20 



Remarks. 



Much rust. 

 Some rust. 



Do. 



Do. 

 Tyittle rust. 

 Rust slight. 

 Side oat. 



Do. 



[Variety tests of wheat and corn], C. Willis (South Dakota Sta. Rpt. 

 1909, pp. 19-21). — Among 20 varieties of durum wheat, averaging 21.25 bu. per 

 acre, the highest yield, 32.25 bu. per acre, was produced by Arnautka. Blue 

 Stem and Red Fife produced the hi.ghest yields, 18.88 and 17 bu. per acre, re- 

 spectively, among 10 varieties of wheat, averaging 14.19 bu. per acre. Among 

 15 varieties of corn tested in cooperation with this Department, Minnesota 

 No. 13 produced the maximum yield, 62.35 bu. per acre, the average of all 

 varieties being 39.75 bu. 



[Experiments with field crops] (Dept. Agr. and Tech. Instr. Ireland Jour., 

 10 (1910), No. 2, pp. 279-5J// ) .—Applications of 6 cwt. of kainit, of li cwt. of 

 muriate of potash, of 1^ cwt. of sulphate of potash, and of 3 cwt. of kainit 

 mixed with 2* cwt. of rape meal per acre, have produced profits when applied 

 to flax during periods of 4 to 8 years ended with 1908, with the exception of 

 kainit and muriate of potash, whicli gave losses in 1902. Applications of (1) 

 3 cwt. of kainit, 3 cwt. of superphosphate and J cwt. of sulphate of ammonia 

 and (2) 3 cwt. each of kainit and superphosphate produced losses during each 

 of the 4 years, 1901 to 1904, inclusive. Applications of 4 cwt. of salt, of 5 cwt. 

 of rape meal, and 5 cwt. of basic slag during 1902 and 1903 did not produce 

 a profit in any instance. 



During the years 1905 and 1908, inclusive, applications of kainit, muriate of 

 potash, and sulphate of potash singly and of a mixture of kainit and rape 

 meal made in winter were compared with similar applications made at the 

 time of planting. The average returns from the spring applications showed a 

 net profit of f 1 12s. with kainit, of f 1 9s. with muriate of potash, and of £1 4s. 7d. 

 with sulphate of potash. A dressing of li cwt. of muriate of potash proved 

 as efficacious with the flax crop as one of 6 cwt, of kainit. The average net 

 profits from the winter application of kainit were fl lis. lOd. per acre and 

 from the spring application £1 18s. Id. ; from muriate of potash, £2 3s. 3d. 

 and £1 16s., respectively. The average net profit from the application of kainit 

 and rape meal during the 4 years under consideration was £2 2s. 2d. 



