FIELD CEOPS. 35 



sixth years after application. Sulphate of lime and sulphate of zinc gave no 

 results. Excellent results followed the use of 2 tons of ground lime or 3 tons 

 of ground limestone. The disease proved more troublesome on thin clay than 

 on light sandy soil. 



Top-dressings of 112 lbs. of nitrate of soda and 139 lbs. of nitrate of lime, 

 supplying 17^ lbs. of nitrogen each, produced yields of 38 and 46i bu. of oats 

 respectively, while the straw yields were 16| and 23^ cwt. In another test 128 

 lbs. of lime nitrogen and 112 lbs. of sulphate of ammonia both excelled 140 lbs. 

 of nitrate of soda during one season. 



Progress reports of many investigations with different crops in 1910 are given. 



[Experiments with farm crops], J. S. J. McCall and B. W. Davy [Ann. 

 Rpt. Agr. and Forestry Dcpt. [Nyasaland], 1910, pp. 5-8, 10-17, figs. 2). — The 

 selection work with cotton is discussed and a method of selection for the first 4 

 years' work recommended. The number of acres devoted in different districts 

 to each of the principal crops is reported and the yield in 1910 estimated. A 

 number of varieties of cotton were tested. Laguna corn proved drought 

 resistant and yielded 2,000 lbs. of dried, husked ears per acre, while a check 

 plat of local maize matured only small cobs. Ground nuts {Arachis hypogea) 

 produced yields of from 1,200 to 1,500 lbs. per acre. The best yields followed 

 level plantings from 15 to 18 in. apart each way. 



Progress reports are given of plantings of soy beans, Florida beans, berseem 

 {Trtfolium alexandrinum), and Crotolaria striata. 



On the flora of certain Cotswold pastures, R. G. Stapledon (Agr. Students' 

 Gaz., n. ser., 15 (1910), No. 1, pp. 5-12). — A report is given of the flora found 

 in 4 pastures. The plants are classed as Gramiue?e, Leguminosse, and included 

 plants, and each of the 3 classes is further divided into the dominant, sub- 

 dominant, abundant, frequent, si^arse, and solitary varieties. 



Experiments on permanent grass land, 1910, E. Kinch (Agr. Students' 

 Gaz., n. ser., 15 (1910), No. 1, pp. 12-15). — In a fertilizer test on grass land 

 applications of (1) kainit, superphosphate, and sodium nitrate, (2) kainit and 

 ammonium sulphate, and (3) superphosphate and sodium nitrate apparently 

 gave the most greatly increased yields. The effect of each of the fertilizer 

 applications on the different grasses is reported. 



Beport on grass seed mixture experiments, 1906-1909, R. B. Greig and 

 W. M. FiNDLAY (Aberdeen and No. of Scot. Col. Agr. Bui. 15, pp. 20).— Each 

 plat used was separated into 2 parts by a fence, one portion being' mowed and 

 the other grazed. 



A large quantity of Italian rye grass in a seed mixture reduced the hay yield 

 at eA^ery farm. No relation appeared between the weight of hay and the pro- 

 portion of perennial rye grass sown. The absence of red clover reduced the hay 

 crop, but tall oat grass increased it. The plats containing the least rye grass 

 were preferred by cattle. After 2 or 3 years the quantity of pUiff and bent 

 grass was found to vary directly with the quantity of rye grass sown. 



Practical hay production, A. Nowacki (Der praktische Kleegrasbau. Berlin, 

 1909, J), ed., rev. and enl., i>p. VI II +11 2). —This volume discusses the value of 

 various clovers, grasses, and seed mixtures for hay growing, and treats in 

 general of the .growing, curing, and storing of hay. 



Cereal map of Manitoba, Saskatchewan, and Alberta, showing acreage 

 under crop in each township in wheat, oats, barley, and flax, 1909 (Canada 

 Dept. Int. Wall Map i).— Aside from the data for the year 1909 presented 

 graphically, tables show the annual production of wheat, oats, and barley for 

 these provinces each year from 1898 to 1900, inclusive, and of the leading coun- 

 tries of the world during 1909. Statistical data relative to the mills and ele- 

 vators of the 3 provinces are tabulated. 



