542 EXPEKIMENT STATION KECOKD. 



At Substation B, 4.5 per cent of tlie potash, 0.19 per cent of the phosphoric 

 acid, and 45.1 per cent of the lime was soluble in aspartic acid, and the soil con- 

 tained nearly three times as much nitrogen as the average soil. At this station 

 the elements ranked in the same order of importance as in the previously de-. 

 scribed test. The increases in potash and phosphoric acid from 60 to 90 lbs. were 

 apparently injurious, but the efficiency of the mixtures in general was seemingly 

 increased by extra amounts of nitrogen. At this substation the fertilization of 

 the plant canes resulted in a loss of approximately 1 per cent, while the rattoons 

 showed an approximate gain of 26 per cent. 



At Substations C and D only 2.75 per cent of the potash, 0.035 per cent of 

 the phosphoric acid, and 23.6 per cent of a comparatively small quantity of lime 

 in the soil was found soluble. The nitrogen content was higher than in the 

 average Hawaiian soil. At Substation C the soil was irrigated, while at D no 

 water was applied. The relative order of the several elements was as follows : 

 Nitrogen, phosplioric acid, potash. The most suitable mixture in the Substation 

 C tests was the one containing 90 lbs. of nitrogen, 60 lbs. of potash, and 60 lbs. 

 of phosphoric acid. The average approximate gain in available sugar, resulting 

 apparently from fertilizing tlie plant cane, was 44.6 per cent ; the gain with 

 rattoons approximately 61.1 per cent; and the general average gain from the 

 plants and rattoons 50.7 per cent. The soil of Substation D was identical with 

 that of Substation C, and the treatment given the plants, aside from irrigation, 

 was also the same. The relative order of importance of the several elements 

 in the fertilizer mixtures was the same, but increases in nitrogen were less 

 effective, and increases in phosphoric acid more effective, -where the cane re- 

 ceived the smaller amount of water. The application containing 90 lbs. of 

 nitrogen, GO lbs. of potash, and 90 lbs. of phosphoric acid is regarded as the most 

 efficient for the unirrigated soil. The average approximate gain in available 

 sugar for fertilizing plant canes was 45.6 per cent, as compared with 29.7 per 

 cent for the rattoons. The average approximate gain for plants and rattoons 

 was 39.9 per cent. 



Tobacco transplanting' and further treatment in the field, J. Van I.eenhoff 

 {Transvaal Dept. Agr., Farmers' Bui. 27, pp. 3-1 Jf, figs. 1). — This is a brief 

 treatise on tobacco culture under Transvaal conditions. 



The breeding and selection of tobacco, J. Van Leenhoff (Transvaal Dept. 

 Agr., Formers' Bui. 28, 2>P- 7, figs. 3). — This publication is a popular bulletin on 

 the subject, and the advice given is for Transvaal farmers. 



The culture of tobacco in Indo-China, F. Nacher (Bui. Econ. Indn-Chiuc, 

 n. scr., 11 (190S). Nos. 71. pp. 161-228. figs. 9; 72, pp. 299-3.'i6, charts 3).— This 

 article is an exhaustive description of the tobacco growing industry in Indo- 

 China. 



Statistics with reference to tobacco production are given and the A'arieties 

 of native and introduced tobaccos are described. Improvements in the methods 

 of culture are suggested with a view to obtaining a product capable of compet- 

 ing with the tobacco of Sumatra and the Philippines. The author l)elieves that 

 the climate and soil in Indo-China are adapted to the culture of the crop, and 

 that by more scientific methods of cultivation the standard of cpiality may be 

 raised. 



Report on a test of varieties of wheat, R. S. Seton ( Univ. Leeds and York- 

 shire Council Agr. Ed. [Pamphlen 7'/, 1908, pp. i7).— Six varieties of wheat 

 were compared in 1908. 



In yield of grain and straw and quality of grain Standard Red and Square- 

 head Master were the best red wheats. Browick Gray Chaff was superior in 

 yield to these varieties but lacked in quality of the grain. Carter White 

 Standup ranked first in yield with 63.5 bu. per acre. The straw of this variety 



