FIELD CROPS. 119 



tioii floes not aid tlie other legumes nor oats in tlieir growth, while 

 lupines gave a materially increased yield in all cases where lupine soil 

 was added to the plats. These data indicate tliat the different legu- 

 minous plants reipiire ditierent symbiotic bacteria tor their growth. — 



F. W. WOLL. 



Experiments on pasture in 1896, E. K. {Agl. Students^ Gaz., n. 

 ser., 8 {1896), No. l.pp. 15-17). — On 20 twentieth-acre ])lat3 r;!pe meal, 

 basic slag, farmyard manure, sodium nitrate, kainit, guano, superphos- 

 phates, and ammonium sulphate were apidied alone or in combiuatious 

 of 2 and 3. The manures were applied at dates between January and 

 May. The composition of some of the fertilizers and the yields i^er 

 acre are given. The average yield of all the plats was nearly 1 ton 

 per acre. Mineral manures alone or nitrate of soda alone gave no 

 increase or but a very slight one. Where mixtures of mineral and 

 nitrogenous manures were applied the yields were greater. Usually 

 ammonium sulphate gave better results than nitrate of soda. Gener- 

 ally the more complex the manure or the mixture the better the result 

 on the first crop. 



Comparative trial of oats, G. Vaalder [Agl. Ga~. N. 8. Wales, 7 

 (1896), No. 3, irp. 135, 130). — An account is given of a test at the Wagga 

 Wagga experiment farm of 31 varieties of American oats for hay and 

 grain. The seed was grown from oats obtained at the Chicago Exposi- 

 tion. White Baltic gave the largest yield per acre of hay, 2 tons 1 cwt., 

 followed by Carter Prize Cluster, Early Dakota, and Early Egyptian, 



I ton IG cwt. each. 



The largest yield of grain was made by Early Eed Texas, 77 bu. and 

 15 lbs. per acre (10 lbs. per bushel), followed by lied Rust Proof, Texas 

 Eust Pi oof. White Bonanza, and Pringle Progress. The average yield 

 of the 31 varieties was 38 bu. per acre. 



Field experiments on oats (Agl. StndenW Gaz., n. ser., 7 {1896), 

 No. 6, pp. 211-218). — In the trial 21 tenth-acre plats were used. Three 

 hundred pounds of kainit, 300 lbs. mineral superphosphates, 131 and 

 175 lbs. ammonium sulphate, 150 and 200 lbs. of sodium nitrate per acre 

 were applied alone, and in combinations of 2 and 3; one plat received 

 7 and one 11 tons of barnyard manure ])er acre, and one remained 

 un manured. 



The plats were plowed in February and sown April 10 to Black Tar- 

 tarian oats. The rainfall for May and June was below the average. 

 The yields are tabulated. The smallest yield, averaging 29^ bu. per 

 acre, was from plats receiving mineral superphosphate and kainit; the 

 highest yield (55^ bu.) was from the plats receiving kainit, superphos- 

 phate, and mineral nitrogen, followed by the plats which had received 



II tons per acre of barnyard manure every year since 18G5. The aver- 

 age yield of all the plats was equivalent to 10^ bu. of grain and 1,975 

 lbs. of straw i)er acre, 23 bu. less than the previous year and less thau 

 one-half the yield of straw. 



5096— No. 2 3 



