FIELD CROPS. 431 



state cau be raised on an aero hikIcm- the host conditions. Four to five tons 

 per aci'e make it a paying crop. 



"At altittides l)olow 5.00() ft. corn can l)e raised successfnlly for silage or 

 fodder at least. White sweet clover makes a good crop where alfalfa can not 

 be grown. Stock eat it readily. It will not become a pest if not allowed to 

 go to seed. Soy beans and cowpeas cau probably be gro\\ai successfnlly in the 

 lower altitudes of the State. The vetch may be substituted for peas with oats 

 under some conditions but peas are usually better yielders. The winter vetch 

 (Vicia xHllosa) may be sown with winter rye on the dry farm to good advan- 

 tage." 



[Field crops work at the Canadian experiment stations and farms in 

 1912], J. IT. Grisdale et al. (Canada Expt. Farms Rpts. IDl.l, pp. 29-Pll, 3D, 

 J,0, /,S-'iy, ¥, 51, 53-55, 62, 63, 06-6!), 75, 82, 86, 89, 96, 97, 101, 102. 106, 123-130, 

 132, 133, 135, 136, 13S-160, 162-17-'f, 17S-1S7, 188, 189, 192-217, 222, 224, 227, 

 228, 2',2-2',5, 303. 30.',, 310-312, 316, 317, ,336-338, 3J,7, 360-362, 365, 370-373, 3S0, 

 S9t, 392, 1,01, /,13-J,73, 493, 494, 619-669, 693-698, pis. 6).— This continues the 

 report of work previously noted (E. S. R., 29, p. 222). 



On the various farms the results of manurial, cultural, or varietal tests have 

 been reported with potatoes, wheat, barley, oats, peas, sugar beets, maize, red 

 clover, alfalfa, timothy, tobacco, turnips, mangels, flax, emmer, spelt, field beans, 

 i-.ve, buckwheat, carrots, orchard grass, broom corn, brome grass, English bine 

 grass, western rye grass, canary gi-.iss, Kentucky blue grass, redtop, alsike 

 clover, and white Dutch clover. Analyses of sugar beets and cooking tests of 

 potatoes are also included. 



As a result of a study of the influence of environment on the composition of 

 wheat and barley it is stated that " this research, inaugurated in 1905, and con- 

 tinued since that date, has shown that soil and seasonal conditions may 

 markedly affect the composition of wheat and barley. For the past three years, 

 wheat from the same stock has been grown on the larger number of experi- 

 mental farms and stations from Prince Edward Island to British Columbia, 

 and the harvested grain analyzed. The data obtained in a very large measure 

 confirm those of previous seasons from similar experiments conducted in the 

 northwestern provinces only, and go to show that a moderately dry soil, accom- 

 panied by high temperatures during the period in which the grain is filling, tend 

 to arrest the vegetative gi'owth of the plant, to hasten matru'ity and conduce to 

 a hard berry, with a high percentage of gluten and high baking value. It would 

 seem from this investigation that the excellent quality of northwestern-grown 

 wheat is due in part, at least, to climatic conditions wiiich prevail during the 

 later sununcr months over large areas in the grain-growing districts, and which 

 bring about a cpiick maturation of the grain." 



The commencement of breeding experiments to improve certain characters of 

 timothy, red clover, and orchard grass is noted. Ifesults of a 2-year test of 

 planting on nonirrigated land seed potatoes grown on irrigated and nonirri- 

 gated land showed those grown on irrigated land to be superior in yielding 

 qnalities. Potatoes in variety tests yielded much heavier under irrigation 

 than when grown on nonirrigated land. In spraying tests with nine varieties, 

 the total yield per acre was 22G bu. 12 lbs. with Bordeaux mixture, 1G.3 bn. 

 3G lbs. with lime sulphur, and 156 bu. 48 lbs. with the check. 



Cooperative experimental work with winter cover crops, F. G. Tarbox, jr. 

 [South Carolina 8ta. Circ. 26 (1914), pp. 3-23, figs. 7).— This circular discusses 

 the value of bur clover, crimson clover, vetch, and rye as winter cover crops, 

 and gives methods of production and results of cooperative work with farmers 

 since 1910. "Numerous reports from farmers show that success has been 

 achieved in nearly all cases where farmers have understood conditions under 



