1908.] Summary of Agricultural Experiments. 621 



imported until the consignee has secured a permit from the Agricultural Department 

 of the Province of Mozambique. The same person may not be granted a permit for 

 more than ten plants or one hundred cuttings of one kind during the year. Stocks, 

 excepting apples resistant to Schizoneura lanigera, pears, plums, apricots, cherry, 

 mango, rose and persimmon stocks, together with vines, peaches, and some other 

 plants are prohibited, except by special permit from the Agricultural Department. 

 Imports will be inspected on arrival, and if necessary disinfected ; if they are found 

 to be infected with certain pests they are liable to be destroyed. 



Supply of Phosphates in the United States — A note was given in this Journal 

 (February, 1908, p. 696) in which the production of raw phosphate in the United 

 States was roughly estimated at 2,000,000 tons. It appears, however, that this figure 

 has been exceeded during the past two years, and that the production of phosphate 

 rock in the United States in 1907, as estimated by the Geological Survey, was as 

 follows: — Florida, 1,386,578 tons (of 2,240 lb.) ; South Carolina, 262,198 tons; 

 Tennessee, 707,710 tons, making a total production of 2,356,486 tons. The exports 

 from Christmas Island in 1907 amounted to 110,375 tons, as compared with 96,449 

 in 1906. {Board of Trade Journal, 6th August, 1908.) 



Agriculture in Bulgaria. Opening for machinery . — H.M. Vice-Consul at Varna 

 (Mr. H. C. Venables), in reporting on agricultural conditions in Bulgaria, states that 

 one of the richest grain- producing districts is that between Roustchouk and Varna. 

 Here the land is practically all divided into small holdings owned by peasant pro- 

 prietors, who are very thrifty and industrious. Bulgaria, says the Vice-Consul, is 

 passing through a period of transition, and, as regards agriculture, this is illustrated 

 by the fact that on one farm operations may be conducted by the aid of the most 

 primitive implements, whilst on an adjoining farm the most modern appliances may 

 be in use. There is, indeed, a distinct popular tendency towards progress, and the 

 next few years will probably be a period of steady advance, providing valuable 

 opportunities to the foreign manufacturer of agricultural implements. The total area 

 of land under cultivation in 1907, continues the Vice-Consul, was 741,330 acres, as 

 compared with 703,872 acres in 1906 and 689,153 acres in 1905. This increase has 

 been largely brought about by the sale of Government pasturage, which shows that 

 Bulgaria has definitely taken up agriculture instead of cattle-rearing. {Board of Trade 

 Journal, 6th August, 1908.) 



SUMMARY OF AGRICULTURAL EXPERIMENTS.* 



EXPERIMENTS WITH POTATOES. 



Manuring of Potatoes {Univ. Coll. of Wales, Aberystwyth, Agric. Dept., 

 Reft, on Expts., 1906). — This experiment was carried out at two centres in 

 Cardiganshire in 1905, and on the College Farm in 1906. The results were 

 similar in both cases, and as the seasons were very dissimilar it is considered 

 that the conclusions must hold good so far as typical Cardiganshire soils are 

 concerned. These are (1) that phosphoric acid and not potash is the most 

 necessary ingredient for potatoes in this part of Wales ; (2) that potatoes are 

 more liable to disease when a heavy dressing of farmyard manure is applied ; 

 (3) that the most economical dressing for potatoes is 10 tons of farmyard 

 manure and a dressing of nitrogenous and phosphatic manures (g cwt. 

 sulphate of ammonia and i\ cwts. superphosphate) ; (4) that it is possible to 

 grow a good crop of potatoes with artificial manures alone, especially in a 

 wet season. 



* See Experiments with Cereals, September, 1908, p. 458; Experiments with 

 Root Crops, October, 1908, p. 536. 



