1918] FIELD CROPS. 439 



Additional series of plats received sodium nitrate tmd potassium clilorid and 

 potassium chlorid alone in order to compare tlie results obtained under these 

 conditions with those obtained by Headden (E. S. R., 33, p. 41). T!ie treat- 

 ment of the individual plats for each stage of growth is outlined. The ex- 

 periments were conducted in 1916 on the Kentucky Experiment Station farm, 

 at Lexington, Ky. The results obtained are rc^ported in tabular form, showing 

 the yield and percentage of grain, percentage of yellowberry and protein con- 

 tent, and the weight per bushel and weight per 1,000 kernels of wheat grown 

 under the various treatments. The conclusions arrived at may be summarized 

 as follows : 



The presence of sodium nitrate in the soil at the early stages of growth 

 stimulated vegetative growth and gave greater yields. The nitrate in the 

 soil at the time of heading gave a better quality of grain with regard to color 

 and protein content, but the vegetative growth was ncTt in the the least affected. 

 The nitrate in the soil at the milk stage had no effect on the yield, quality, 

 or protein content of the gi-ain. Identical results were obtained from the 

 plats receiving nitrate in solution and those receiving it in solid form, except 

 that the yields from plats receiving the fertilizer at the first stage were higher 

 in the former case than in the latter. This difference was attributed to a 

 better distribution of the fertilizer when applied in solution. 



Potassium chlorid did not affect vegetative gi-owth nor the composition of 

 the grain, but did seem to increase the amount of yellowberry when used alone, 

 agreeing in this respect with results obtained by Headden, as noted above and in 

 more recent investigations (E. S. R., 37, p. 38). No consistent variation was 

 observed in weight per 1,000 kernels or in weight per bushel. Although these 

 experiments are believed to have established a definite correlation between per- 

 centage of nitrogen and yellowberry, they did not indicate any such correla- 

 tion between protein and weight per 1,000 kernels, a correlation found in 

 previous work of LeClerc and his associates. The authors conclude that this 

 may be due to the change from the hard winter wheat variety formerly used 

 to the soft winter wheat variety used in these experiments, or that the causes 

 affecting protein content and color of grain and those affecting the weight 

 per 1,000 kernels are not thp same. 



The quality of western-grown ^^spring wheat, O. H. Bailey {Jour. Amer. 

 Soc. Agron., 9 (1917), No. 4, PP- 155-161). — Data obtained from milling and bak- 

 ing tests made at the Minnesota Grain Inspection Department Laboratory with 

 Washington, Idaho, and Montana wheats of the 1916 crop and showing the per- 

 centage of crude protein in each are reported in tabular form and discussexl. 

 The samples analyzed included western hard spring wheats, western hard win- 

 ter wheats, western soft red wheats, Early Baart, Pacific Bluestem, and other 

 western white wheats. 



The quantity of Marquis wheat produced in the Pacific Northwest and Mon- 

 tana during 1916 was nuich larger than usual, due to an increased acreage in 

 certain sections and to the reseeding of winterkilled winter wheat fields in 

 Montana. Marquis grown at Pullman, Wash., was higher in protein content 

 and baking strength than any of the common varieties analyzed, while samples 

 of this variety grown at lower altitudes were, in general, materially lower in 

 baking value and percentage of crude protein than those grown at higher alti- 

 tudes, the difference being attributed to the shorter growing season under the 

 latter conditions. Marquis grown under dry-farming conditions in Montana 

 was of good milling and baking quality and somewhat superior in these respects 

 to Turkey winter wheat grown in the same districts. 



Early Baart samples from the Big Bend district near Lind, Wash., were 

 higher in percentage of crude protein and were nearly as satisfactory from the 



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