534 EXPERIMENT STATION RECORD. 



Report on an experiment on the improvement of poor permanent pasture 

 by manuring, R. P. Wright {West of Scot. Agr. Col. Ann. Rpt. 10 (1911), 

 pp. 187-192). — This experiment was similar to the above except that the soil of 

 this Perthshire field was a light stony loam and its grasses were hard fescue 

 (Festtica duriuscula), common bent grass {Agrostis vulgaris), bedstraw 

 (Galium withcringii) , and tufted hair grass (Aira ccespitosa) . 



The application of basic slag at the rate of ^ ton per acre appeared profitable. 

 The moss could be effectively destroyed by applications of basic slag, espe- 

 cially if kainit wei'e added also, but the author believes that the additional 

 advantage derived from kainit may prove insulBcient to defray its cost. Tables 

 state in detail the effect of the fertilizers upon the live weight of the sheep 

 pastured on the fertilized and unfertilized plats. 



[Fertilizer and variety tests with field crops], T. S. Parsons {Wyoming 

 Sta. Rpt. 1911, pp. 41-45). — In a test of 8 alfalfa varieties, German Seed and 

 Grimm produced the highest yields, 3,300 and 2,900 lbs. per acre, respectively. 

 In a test of 12 applications of ammonium sulphate, dried blood, nitrate of 

 soda, phosphate, potash, and stable manure, singly or in various mixtures, or 

 the use of rye and peas as green manuring crops, the highest yield of oats 

 followed an application of nitrate of soda at the rate of 120 lbs. per acre. 



[Experiments with field crops, Barbados, 1910—11], J. R. Bovell {Rpt. 

 Local Dcpt. Agr. Barbados, 1910-11, pp. 48). — This is a continuation of work 

 already noted (E. S. R., 25, p. 32). 



[Experiments with field crops], F. Watts et al. {Rpts. Bot. Sta. [ctcl 

 St. Kitts-Nevis, 1910-11, pp. 9-13, 15-33). — Liming numerous peanut plats was 

 followed by variable results, in some cases being apparently decreased while in 

 others it remained exactly the same or was increased up to about 18 per cent. 

 The results of variety tests of yams, cassava, peanuts, and sweet potatoes are 

 reported. 



Fertilizer tests with cotton occupying 38 plats were divided into a nitrogen, 

 a phosphate, a potash, a cotton-seed meal, a salt, and a copper sulphate series. 

 A table reports the yield obtained on each plat in 1910-11 and the 7-year aver- 

 age. The highest yield followed an application of nitrate of soda, sulphate of 

 potash, and basic slag, but yields almost as high followed applications of (1) 

 sulphate of ammonia, sulphate of potash, and basic slag, (2) sulphate of am- 

 monia, sulphate of potash, and a larger amount of basic slag, (3) basic slag and 

 cotton-seed meal, and (4) sulphate of potash, basic slag, and cotton-seel meal. 

 Tables also report the yields and quality of tree cotton. 



Reports on the botanic station and experiment plats, Montserrat, 1910—11, 

 F. Watts {Imp. Dept. Agr. West Indies, Rpts. Bot. Sta. [etc.] Montserttad, 

 1910-11, pp. 1-21). — Reports of the results of spinning trials and cotton im- 

 provement by selection are followed by a brief discussion of germination tests 

 with cotton seed. 



During a severe attack of cotton stainers the lint was discolored and weak- 

 ened while the seed in the bolls attacked had a germinating power of 21 per 

 cent as compared with 90 per cent in case of bolls not attacked. Seed protected 

 during the development but exposed to the feeding of insects after harvesting 

 showed no effect on germinating power. 



Bengal beans {Stizolobinm aterrimum) when allowed to cover lime trees 

 until November 22 effectively freed them from gi-een scale {Coccus viridis) and 

 purple scale {Lepidosaphes heckii), but when removed from the tree September 

 20 the scale was not completely eradicated. 



Variety tests of peanuts and sweet potatoes are also reported. 



Report on the results of rotation experiments in the counties of North- 

 umberland and Durham, D. A. Gilchrist {iSlewcastle-upon-Tyne, 1911, pp. 



