FIELD CROPS. 



537 



of growth of the different varieties varied from 294 to 310 days. The 

 square head variety grown in the vicinity of the experiment farm for a 

 number of years yielded 8.89 bu. of grain and 996 lbs. of straw per 

 acre less than the recently improved- varieties of square-head wheat. 

 The protein content of the square head varieties was found to be quite 

 low, being 9.21 per cent in the grain, 1.22 per cent in the straw, and 

 2.47 per cent in the chaff. The total amount of the protein obtained 

 from equal areas was smallest in the square-head varieties. The author 

 states that modern breeding has not yet produced a variety of square- 

 head wheat which produces large yields and also has a high gluton 

 content. 



Of winter rye 7 varieties were grown. The best yielding varieties 

 were Heine Improved Zeelander and Petkuser, yielding 52.09 and 51.61 

 bu. per acre, respectively. The Zeelander variety ripened in 282 and 

 the Petkuser in 277 days. The average number of haulms per plant 

 varied from 5.7 to 0.8 among the different varieties, being 0.3 for Heine 

 Improved Zeelander, 0.4 for Petkuser, and 0.8 for the G-ottinger variety. 

 The Heine Zeelander and Petkuser varieties contained 8.75 and 8.22 

 per cent of crude protein, respectively. The author states that modern 

 improvement of varieties seems to increase the yield by increasing the 

 size of the grain and consequently the starch content, and that, as a 

 result, the new varieties are poor in protein. 



A comparative test was made of 7 varieties of spring wheat grown 

 after sugar beets and alfalfa. The plats were fertilized at the rate of 

 20.70 lbs. of soluble phosphoric acid and 178.42 lbs. potassium nitrate 

 per acre. The wheat was sown in drills March 27 at the rate of 2.02 

 bu. per acre. The yields are given in the following table: 



Comparative yields of varieties of spring wheat. 



The wheat grown after alfalfa gave the best yields, but the grain did 

 not fill as well as that grown after sugar beets. 



A four-rowed variety of summer barley, grown on land which was in 

 sugar beets the year previous, yielded 53.84 bu. of grain and 3,701 lbs. 

 of straw per acre, but the grain produced was of poor quality. 



Six varieties of field beets, a yellow and red sort each of the Oberu- 

 dorfer, Eckendorfer, and Leutewitzer varieties, were growu after 



