FIELD CROPS. 1131 



Maiulsobeuri ltarl«\\ with nii ;i\t'r:i,t.'t' yield (»f 70.!t l)ii. per iicri', Juaiielte i;ats 

 with 8S.(; bii.. Euiijire State jtotatoes witli 22;{.7 bu., and Dawson fiolden Chaff 

 winter wheat with ~>4.(i bu. 



In each of ;"> years the first seeding of oats, barley, si)rinK wheat, and peas 

 was made when tlie huid was warm and dry enough to worlc to good advantage, 

 and several seedings at intervals of 1 week were made after this date. The 

 best yields of grain and straw per acre were obtained from the first date of 

 seeding with spring wheat and barley and from the second date with oats and 

 peas. For every day's delay in seeding after the first week there was an 

 average decrease of 5() ]l)s. of oafs, rv.\ lbs. of barley, 2!) lbs. of si)ring wheat, and 

 23 lbs. of peas i)er acre. A similar test with emmer and spelt also showed that 

 in each ca.se ennner held the sui»erior record in grain as well as in straw pro- 

 duction. Winter \\heat has in general given the best results when sown be- 

 tween August 2(i and September !>. In a test with different quantities of flax- 

 seed per acre the best yield, 2.5 tons of straw and 21.1 bu. of grain, was secured 

 from the use of 2 bu. of seed. 



Where lield peas were used as a green manure for the preparation of land for 

 winter wheat an average of about 6.5 bu. more wheat per acre was secured than 

 where buckw'heat was plowed under. Thoroughly ripened winter wheat pro- 

 duced a greater yield of both grain and straw and a heavier grain, as shown 

 b.y 7 years' work, than wheat cut at any of the four earlier stages of maturity. 



Barley and oats grown as a mixed crop gave in 1907 the highest yield of 

 grain, 1,979 lbs. per acre, where 4 pk. of each were used per acre. The mixture 

 of Mandscheuri barley and Daubeney oats has been found to ripen well to- 

 gether and to produce a large yield of grain. The results with crop mixtures 

 of 12 and S kinds of grain, in combinations made up of uniform weights of seed 

 or of quantifies in the same in-oixtrtion as when the croi)S ai'e grown separately, 

 showed the supremacy of ^Mandscheuri G-rowed barley when used in this way. 

 In the average of 6 years' work and the results of 24 tests this variety repre- 

 sented 17.G per cent in the mixture. 



Within the past 19 years 295 varieties of oats have been tested at the college 

 and 59 varieties have been compared in each of the past 5 years. Among these 

 Yellow Russian, Vick American Banner, and New Zealand ranked first In grain 

 jn-oduction with respectively 102 bu., 101.9 bu.. and 99.4 bu. per acre as an 

 average for 5 years. Hulless, the lowest ranking variety, yielded .50.2 bu., and 

 31 varieties of the .59 yielded over 90 bu. per acre. Varieties ]»ossessing the 

 stift'esf straw in 1907 were Liberty. Daubeney. Banner, Kherson, Early Cham- 

 pion, and Siberian. 



The highest yield of 6-rowed barley in 1907 was produced from a special 

 strain originated from a selection from the Mandscheuri barley originated at 

 the college in 1903. The college has produced a considerable number of hybrid 

 barleys by using the Mandscheuri as one of the parents. Of G varieties of 

 2-rowed l)arleys grown for 14 years in succession 2-rowed Canadian, .Tarman 

 Selected Beardless, and New Zealand Chevalier ranked first in yield with G4.G, 

 63.8, and G2.2 bu. jier acre, re?pecti\ely. Of the hulless varieties grown for 14 

 years in succession, (Jny JNIayle ranked first with 48.3 bu., Pui-ple second with 

 45.4 bu., and Black Hulless third with 44.9 bu. The last-mentioned variety is 

 the most extensively grown throughout Ontario. Winter barley at the college 

 for 11 years has given an average yield of 5().5 l)u. of grain and 1.3 tons of 

 straw per acre. In 1907, of 3 winter varieties, Tennessee was the most pro- 

 ductive, yielding .53.4 bu. per acre. During the past 14 years winter barley has 

 been completely killed out on three occasions. 



About 2.50 varieties of winter wheat have been tested at the college during 

 the past 18 years. Among a number of varieties grown for 12 years Dawsou 



