FIELD CROPS. 761 



when- potash was given in addition the Bugar content was also Blightly reduced \\ hile 

 the purity of thejuiceand the yield of Bugarwerenol materially affected. These 

 results are regarded as confirming, in general, the \\<>rk of Maercker (E. S. B., 12, 

 p. 531), and Bhowing that as the quality of modern improved sugar beets is nol 

 appreciably influenced by the common kinds of fertilizers, including peal poudrette, 

 sugar factories are not warranted in placing restrictions on the kinds or amounts of 

 fertilizers used by beet growers. 



[n the experiments with fodder beets the largest quantities of dry matter were 

 obtained from the heaviesl applications of fertilizers in general use, \\ hile the highest 

 percentages of dry matter were secured where no fertilizers were given. The com- 

 position of the beets showed that the character of the fertilization did nol apprecia- 

 bly affect their food value. 



The lowest yields of potatoes wen- secure. I where no fertilizers were used, medium 

 yields on plats receiving superphosphate and potash, and the highesl yields of tubers 

 or starch on the plats treated with complete fertilizers. As in the case of fodder 

 beets, the fertilizers applied placed the yield and quality in inverse ratio to each 

 other. — i". w. woll. 



Serradella and red clover in rotation, R. Guthkk i Deut. Landw. V> 

 i 1905 I, No. 96, p. 799). — It is reported that on the heath Lands of Luneburg serra- 

 della is nut successful when following red clover, and that results are also unsatis- 

 factory when red clover follows serradella. 



Fertilizer tests with sugar beets in 1901 and 1902, S. L. Frankfubt et al. 

 [Kiev, 1905, pp. TV 561; rev. in Zhur. Opuitn. Agron. {Russ. .lour. Expt. Landw. ),6 

 (1905), No. 4} PP- 471, 472). — Fifteen cooperative tests were made in 1902. In every 

 instance the use of superphosphate and nitrate of soda in combination improved the 

 yield, the increase varying from 107 to 11,077 lbs. per acre. In general a better 

 quality was obtained, the increase in sugar content ranging from 0. 1 to 1.7 per cent. 



The superphosphate in most tests seemed more effective than trie nitrate of soda, 

 and a quantity furnishing 27 lbs. of phosphoric acid per acre and applied in the drill 

 was apparently most advantageous. The quality of the beets was nol unfavorably 

 affected when nitrate of soda was applied. Small applications of nitrate of soda 

 proved effective, and quantities not exceeding 50 lbs. per acre gave the best results. 

 Even in quantities furnishing only 7 lbs. of phosphoric acid per acre superphosphate 

 gave a noticeable increase in yield and in general seemed to give better results than 

 Thomas slag. — p. fireman. 



The use of shelled and disinfected beet seed [Deut. Landw. Presse, 82 I 1905), 

 No. 100, p. 881).— The use of beet seed from which the hull of the seed boll has been 

 removed is discussed and the advisability of disinfecting seed is pointed out. The 

 advantages of shelled and disinfected seed are given as follows 1 A reduction in 

 the volume of the seed, (2) a greater regularity in seeding with a smaller quantity of 

 seed used, (3) quicker germination, and (4) the destruction of parasites. It is stated 

 that the use of this kind of seed is spreading. 



Comparative analyses of varieties of cane, C. F. Eckart ( Hawaiian Sugar 

 VUmtert? Sta., Div. Agr. and Chem. H"/. i .\ pp. 20). — The results of a chemical study 

 of 17 varieties of cane are tabulated and discussed. 



It was found that the various varieties when grown under like conditions made 



different demands upon the plant foods of the soil. It is pointed out that Striped 

 Singapore contained 7.7 lbs. of nitrogen for each ton of solid matter produced as com- 

 pared with only 4.2 lbs. for I temerara No. 117. For each ton of solid matter I temerara 

 No. 74 had taken up 8.4 lbs. of phosphoric acid and Queensland No. 1 only .1.7 lbs. 

 Demerara No. 74 also stood first in the quantity of potash with 35.1 lbs., and less 

 with regard to lime, the quantity appropriated being only 3.9 lbs. The largest quan- 

 tity of lime, 7 lhs. in each ton of solid matter, was found in Louisiana Striped. The 

 analyses further showed that during the development of different crops the Bame 



