332 EXPERIMENT STATION RECORD. [Vol.43 



grain was loss llian that from cillicr crop i)laiittMl alone. A hill of beans 

 planted with a hill of corn or between liills reduced the yield of corn but little, 

 and gave 4.3 bu. of soy beans and 34.9 bu. of corn per acre. 



Tests with wheat for three years indicated that applying nitrate of soda 

 when the wheat is seeded in the fall remained without effect, while top-dressing 

 with tlie nitrate in the spring gave an increase in yield. ^Vheat drilled in 

 rows 4 in. apart gave practically the same results as wheat drilled in rows 8 

 in. apart. In wheat breeding work pure-line selections from Jersey Fultz have 

 given rise to a strain which yielded on an average for four years 3S.2 bu. per 

 acre as against 35.2 bu. for the original variety. 



In experiments with hemp the crop on untreated soil yielded 939 lbs. of 

 fiber per acre as an average for three years, while liemp on soil receiving from 

 100 to 150 lbs. of nitrate of soda per acre gave 1,300 lbs. of fiber. Hemp grown 

 for three years in succession on land infested with wild onions apparently had 

 nearly eradicated this weed at the close of the period. 



In tobacco rotation experiments the best quality of leaf and the best yields 

 were produced after grass sod. Manui'e used on grass sod did not seem to have 

 reduced the quality appreciably, and leaf of fair quality was secured also in a 

 rotation of corn, tobacco, wheat, and clover, and in one of alfalfa, corn, and 

 tobacco. Poor yield and quality of leaf were secured where soy beans were 

 grown in the 3-year rotations, as this crop seems to encourage the prevalence 

 of root rot. 



[Work with field crops at the Nevr Mexico Station in 1918-19] {New 

 Mexico Htci. Rpt. 1919, pp. 27, 2S, 3//-.36).— Average yields of sugar beets of 

 13.25 tons from March plantings and 10.67 tons per acre fx-om April plantings are 

 reported. Artificial shading of some of the sugar beet plats did not prove bene- 

 ficial. 



The results of a cotton variety test have been noted from another source 

 (E. S. R., 42, p. 829). Among alfalfa varieties a selecticm of I'eruvian gave the 

 best yield for the season. Irrigation, cultural, and variety tests with potatoes 

 are also noted. 



Agronomy experiments (North Dakota Sta. Bui. 136 (1920), pp. 7-9, 11, 17, 

 figs. 2).- — Rotation experiments and studies with flax and sweet clover in prog- 

 ress at the station during the period of the report are briefly described. 



Tests of regional strains of sweet clover demonstrated the general excellence 

 of North Dakota grown seed. The results of cereal varietal trials indicated the 

 following as the leading sorts : ]\Iarquis hard red spring wheat, Kubanka amber 

 durum spring wheat, Lincoln oats, Select Manchuria barley, and North Dakota 

 959 rye. 



Dry farming in the plains area of Montana, G. W. Morgan and A. E. Sea- 

 mans {Montana Sta. Circ. 89 {1920), pp. 22). — This circular, describing the most 

 successful cultural methods and rotations for ordinary field crops grown under 

 dry land conditions in Montana east of the Rocky Mountains, is based largely on 

 the results obtained in cooperation with the U. S. Department of Agriculture at 

 the Judith Basin substation during the last nine years and at the Huntley substa- 

 tion during the last five years. Methods of producing crops on newly broken sod 

 and on land previously cropped are described, and directions for growing spring 

 wheat, winter wheat, oats, barley, corn, flax, and pasture, forage, and hay crops, 

 including brome grass, winter rye, alfalfa, sweet clover, etc., under the conditions 

 and requirements of the region are given. The varieties of the diffei'ent crops 

 which have given most reliable results are mentioned, and the average yields 

 secured under different cultural practices and crop rotations are briefly reported. 



