772 Summary of Agricultural Experiments, [dec, 



would be likely to prove of much value in promoting and 

 developing the export trade. A station of this kind should 

 in the first place be established as an experimental measure ; 

 it is probable that after a few years it would become self- 

 supporting, and it might then be established on a permanent 

 basis." 



In support of this recommendation, Mr. Middleton points 

 out that, were satisfactory arrangements made for testing 

 cattle in Britain, there is substantial reason to expect that the 

 test would be generally accepted in South Africa, and in view 

 of the considerable export of cattle which has recently taken 

 place from this country to South Africa, and the stringent 

 regulations as to quarantine, it is clearly desirable in the 

 interests of exporters that an endeavour should be made to 

 prevent a repetition of such hindrances to trade as exist in 

 the Buenos Aires quarantine station. The immunisation of 

 stock against certain diseases might remove an obstacle to the 

 development of a trade with Brazil, Venezuela, and other 

 sub-tropical countries, since it is now possible to protect 

 cattle from attacks of redwater by means of a vaccine ; and 

 it may in the future be possible to immunise stock against 

 other diseases prevalent in the country for which they are 

 destined. 



SUMMARY OF AGRICULTURAL EXPERIMENTS.* 

 Soils and Manuring. 



Continuous Growing of Wheat and Barley (Rept. on the Woburn 

 Field Expts., Jour. Roy. Agric. Soc, Vol. 71, 1910). — Wheat and barley 

 have been continuously grown at Woburn since 1876 on the same land, 

 the manures being applied every year. 



In 19 10 the yields of wheat generally were well up to the average of 

 the ten years 1897-1906. The unmanured plots gave 14*1 bush, per 

 acre; mineral manures alone gave rather less, viz., i2'6 bush.; the pro- 

 duce from farmyard manure was only 18' 1 bush., but rape dust gave 

 25" 1 bush. The highest yield of wheat was 27*8 bush., from mineral 

 manures with nitrate of soda, the latter manure being applied in alter- 

 nate years (last applied in 1909). A plot on which mineral manures 

 and sulphate of ammonia were used ^and which received a dressing 

 of one ton of lime in January, 1905, gave a yield of 24' 1 bush. The 

 influence of lime in one case was clearly marked for quite thirteen 

 years. As regards quality, the wheats as a whole were poor ; the best 



* A summary of all reports on agricultural experimenis and investigations recently 

 received is given each month. The Board are anxious to obtain for inclusion 

 copies of reports on inquiries, whether carried out by agricultural colleges, societies, 

 or private persons. 



