730 



EXPERIMENT STATION RECORD, 



planted. A table shows the number of grains per i)oun(l for various varieties, 

 and the number of pounds of each variety required to plant an acre at different 

 distances. When planted 12 in. apart in the row, Hickory King produced its 

 maximum amount of silage in rows 1 ft. 6 in. apart. North American at 2 ft. 

 apart, and ISatal White Horsetooth at 3 ft. apart. On brown loam the greatest 

 net profit, £2 10 d. per acre, followed an application of superphosphate, while the 

 net loss following the application of nitrate of soda was 18s. lOd. 



Cooperative experiments with, clovers, vetches, beans, suUa, sainfoin, 

 lupines, and kale (A(/r. Jour. Cape Good Hope, 31 {1910), No. 1, pp. 81-95).— 

 These pages report briefly tests of kale and a number of legumes on many farms 

 at different points. 



[Problems of crop production], H. Juhlin-Dannfelt (K. Landtbr. Akad. 

 Handl. oeh Tid.skr., J,9 {1910), No. 3, pp. 228-245). — These pages discuss modern 

 views as to problems of crop production. The fields of soil bacteriology, soils 

 and fertilizers are reviewed with many references to the literature of the sub- 

 ject. 



The rotation of crops for irrigated lands, J. Burtt-Davy (Transvaal Dept. 

 Agr., Farmers' Bui. 118. pp. 8). — Rotations used in England and the United 

 States are given, together with suggestions for the management of rotations in 

 South Africa. 



Variety tests in 1909 {Jahbr. Deut. Landw. GeselL, 25 {1910), No. 1, pp. 

 31--'il). — Variety tests of wheat, oats, rye, field peas, beets, and sugar beets in 

 different parts of (Jermany are reported. 



The influence of chemical fertilizers on the composition of cereals. Ray- 

 naud, Brunerie, and G. Paturel {Prog. Agr. et Vit. (Ed. VEst-Centre), 31 

 {1910), No. 26, pp. 777-780). — These tests were made on wheat, oats, and corn. 

 Each series contained 4 plats — No. 1, the check plat. No. 2. fertilized with 30 kg. 

 of manure, No. 3, fertilized with 500 kg. superphosphate in addition to the ma- 

 nure, and No. 4, fertilized with the same materials mixed with 200 kg. of 

 potassium chlorid. The following table shows the composition of the crops 

 harvestetl : 



Yields and nitrogen and phosphoric acid content of loheat, oats, and corn 



variously fertilized. 



The quality of German oats and rye harvested in 1909 (Ztschr. Gesam. 

 GcircidcU'., 2 {1910), No. 5, p. 125). — A table presents the variation in average 

 moisture percentage, weight per hectoliter, and percentage of weed seed, foreign 

 material, and other grains present in the oats and barley marketed in different 

 parts of Germany. 



Seeding- mowing's, W. P. Brooks {Massachvsetts 8ta. Circ. 27, pp. 8, figs. 3). — 

 A revision of Circular 16, previously noted (E. S. R., 20, p. 327). 



