524 EXPERIMENT STATION RECORD. 



FIELD CROPS. 



[Field crop experiments] (Rpt. Dept. Agr. Barbados, 1912-13, pp. 2-27). — 

 This reports and discusses results of manurial and variety tests with sugar 

 cane and cotton, variety tests with cassava, caladiums, various legumes, and 

 yams, and cultural trials with sour grass, guinea grass, and Andropogon 

 annulatus. 



The results of 20 years' experimenting with barnyard manure, superphosphate 

 of lime, sulphate of potash, sulphate of ammonia, nitrate of soda, and dried 

 blood have shown that the highest yields obtained with sugar cane were when 

 60 lbs. of nitrogen as dried blood was applied, 15 lbs. in January and 45 lbs. 

 in June, in addition to other fertilizers. The best monetary results, however, 

 were obtained when 40 lbs. of nitrogen as sulphate of ammonia was applied, 15 

 lbs. in January and 25 Ib.s. in June. 



The addition of phosphatic manures showed losses. The best results obtained 

 by the addition of potash were where 80 lbs. as sulphate of potash was applied 

 In January. 



Experiments with calcium cyanamid, H. Lipschijtz (Illus. Landw. Ztg., 34 

 (1914), No. 25, p. 2Jt7, figs. 6). — This article gives results of experiments in 

 various localities in which calcium cyanamid, used at rates varying from about 

 100 to 125 lig. per hectare and applied as a top dressing to oats, potatoes, stock 

 beets, and cabbage, not only destroyed the wild mustard growing in the crop but 

 increased the yields materially. 



The application of nodule bacteria for legumes, G. Kock ( Monatsh. Landw., 

 7 (1914), No. 1-2, pp. 24-27, fig. 1).—It is here noted that soil condition is an 

 important factor for successful inoculation. The results obtained with lupines 

 and serradella showed the method of inoculation with nodule bacteria to be 

 entirely satisfactory and productive of results equivalent to those with pure 

 culture preparations. 



Some minor farm crops, J. V. Eyee, A. W. Ashby, G. F. Whitmore, and 

 A. J. Bbandon (Jour. Roy. Agr. Soc. England, 74 {1913), pp. 127-172) .—This 

 article discusses the general cultural and industrial conditions, and gives statis- 

 tics in regard to flax, hemp, tobacco, teasels, and the production of seed of farm 

 roots, vegetables, flowers, cereals, and grass. 



Seeding grass with or without a nurse crop, A. Rindell (Finska Moor- 

 Icultur For., 1913, pp. 241-255; ahs. in ZentU. Agr. Chem., 43 {.1914). No. 3, pp. 

 176-177). — The results here reported of several trials from 1906-1909 show 

 heavier yields of hay obtained without a nurse crop of oats than with such 

 a crop. 



Investigations on the influence of water on the yield of meadows and 

 pastures, Lxiedecke {Kulturtechniker, 17 {1914), Nos. 1, pp. 23-37, pi. 1; 2, pp. 

 101-121, pis. 7). — Some observations on recent investigations relating to the 

 influence of water upon the development of grass and forage plants are given. 



Phosphorus-containing substances in meadow hay, M. C. Dusebre et al. 

 {Arch. Set. Phys. et Nat. [Geneva'], 36 {1913), No. 12, pp. 578-581; al)s. in 

 Internat. Inst. Agr. [Romel. Mo. Bui. Agr. Intel, and Plant Diseases, 5 {1914), 

 No. 3, pp. 350, 351).— In this study the quantity of (1) phosphatids. (2) phos- 

 phates, and (3) nucleo-proteids in various samples of hay is given. The appli- 

 cation of phosphatic manures seems, from the data given, to have increased the 

 phosphorus content of the hay, more especially that part present in the form of 

 phosphates and phytin. 



The composition of alfalfa, P. L.wenib (Bol. Min. Agr. [Buenos Aires]. 16 

 {1913), Nos. 5-6, pp. 581-596). — Results of analyses of several hundretl samples 

 of alfalfa from numerous localities in Argentina are given and discussed. 



