FIELD CEOPS. 



33 



] 'h nit. food furnisJied per acre hi. ihe fertilizers and removed hij the crops. 



Fertilizer. 



Nitrogen 



I'otasli 



Phosphoric acid 



Plat 17, no nitro- 

 gen. 



Quantity 

 in fertil- 

 izers. 



Pounds. 



0.00 



150.00 



130. 00 



Quantity 

 in crops. 



Plat 19, one-third 

 ration of nitrogen. 



Plat 21, full ration 

 of nitrogen. 



Quantity 

 in fertil- 

 izers. 



Pounds. 

 40.01 



47.87 

 10.78 



Poundg. 



21.00 



150.00 



130. 00 



Quantity 

 in crops. 



Pounds. 

 33.56 

 55. 64 

 13.30 



Quantity 

 in fertil- 

 izers. 



Pounds. 

 63.00 

 150. 00 

 130. 00 



Quantity 

 in crops. 



Pounds. 



49.70 



123. 35 



25.58 



Plant food removed per 1,000 Uis. of field-cared, hay hi IBOl-a 



Fertilizer. 



Plat 17, no nitro- 

 gen. 



1901. 



1902. 



Plat 19, one-third 

 ration ot nitrogen. 



Plat 21, full ration 

 of nitrogen. 



Nitrogen 



Potash 



Phosphoric acid 



Pounds. 

 6.5 

 14.9 

 4.1 



Pounds. 

 13.6 

 16.2 

 3.9 



Pounds. 

 5.6 

 14.7 

 3.5 



Pounds. 

 6.9 

 11.5 



2.7 



Pounds. 



5.8 



16.2 



3.3 



Pounds. 



6.1 



15.0 



3.1 



From the results of all the experiments up to date it is concluded that an applica- 

 tion of 400 lbs. acid phofsphate, 200 to 250 lbs. muriate of potash, and 350 lbs. nitrate 

 of soda per acre would probably have given better net returns than the quantities 

 employed in this experiment. "Top-dressing 'run out' land which is not tilled 

 with the proper kinds of gra.ss roots" is considered a waste of the fertilizer. For 

 such grass lands plowing and reseeding heavily is recommended. 



Flax and flaxseed selection, H. L. Bolley {North Dakota Sta. Bal. 55, pp. 171- 

 186, Jigs. 8). — This bulletin reviews flax culture in the United States and other coun- 

 tries, contrasts European and American conditions with reference to the culture of 

 the crop, and summarizes the difficulties affecting the flax industry in this country. 

 In discussing flax culture in North Dakota the author points out the use of mixed 

 seed of poor quality, poor soil culture, and the lack of proper crop rotation as unsat- 

 isfactory practices, and outlines methods of procedure to improve the culture of flax 

 in general and to obtain more profitable results. 



Influence of kainit on the yield of flax, A. Alexandeov {Dokl. i Soobshch. 2. 

 Hijezda Dyeyut. Selsk. Khoz. Opuitn. Dyelu, St. Petersburg, 1902, jjt. 1, jip. 104-110; 

 ahs. in Zhur. Opuitn. Agron. [Jour. Expt. Landw.l, 4 {1903), No. 1, p. 93). — In 

 experiments conducted at the Vyatka Experiment Station and the Okunyen Farm 

 kainit increased the yield of the seed as well as the straw of flax, the proportion of 

 increase being the greater in the straw. The increase in the yield of straw was 

 partly due to the increase in the length of stem. — p. fireman. 



Pearl millet, C. R. Ball ( V. S. Dept. Agr., Farmers' Bui. 168, jjp- 16, figs. 8).. — 

 This bulletin gives a description of pearl millet with directions for its culture and 

 uses. The origin and history of the plant are reviewed and the different names 

 applied to it are pointed out. A test of seed sold under the different names showed 

 the resulting plants to be practically identical. The uses of the crop for soiling, 

 ensilage, and hay are briefly noted. The composition of pearl millet cut at different 

 stages of growth, as determined at different experiment stations, is compared with 

 the average analyses of cured corn stover and corn fodder, and of sorghum used as 

 green fodder. 



The anatomical structure of cultural varieties of millet, A. L. "Winton 

 {Ztschr. Untersnch. Nahr. u. Genussmtl., 6 {1903), No. 8, pp. 337-345, figs. 5).— On 

 the basis of microscopical studies the author discusses the anatomical structure of 

 sorghums, broom corn, Kafir corn, etc., and related topics. 



The ash constituent of potato leaves at different stages of growth and 

 under different systems of fertilizing, J. Seissl {Ztschr, Landw. Yersuchsw. Oesterr., 



