830 EXPERIMENT STATION RECORD. [Vol. 36 



effects resulted in increased yields valued at $22.87 per acre. Similarly with 

 the 4-ton application the direct increase is valued at $14.91 and the residual at 

 $13.49 per acre. 



A further comparison of the direct and residual effects of a complete chemical 

 fertilizer when applied to corn and wheat and to wheat alone shows that the 

 chemical fertilizer, which cost $7.45 for the corn crop and $S.GO for the wheat 

 crop (at prices prevailing before the war), produced a direct increase valued at 

 $22.47, nearly the same as the 16 tons of barnyard manure, but the residual 

 increase from the chemical fertilizer amounted to only $11.85 per acre, or about 

 half that from the manure. When the fertilizer was applied to wheat only, the 

 residual increase extending through the four crops following was relatively 

 larger than when both crops were fertilized, amounting to 80 per cent of the 

 direct increase. 



Report of the Bugyi experimental plat for the year 1914—15, E. Thomp- 

 STONE {Dept. Agr. Burma, Rpt. Bugyi Expt. Plot, 1914-15, pp. 5). — This is a 

 progress report of investigations being conducted near Bugyi. The objects of 

 the project are to introduce paying dry crops, to test deep and early cultiva- 

 tion, and to find a good rotation crop for sesame, the principal crop of the 

 region. Of the crops tested, pesingon {Cajanus indicus), pyaung (SorgJmm 

 vulgare), and pebyugyi {Phaseolus lunatus) are said to give promise for the 

 future. Brief notes are also given on castor, cotton, peanut, and sesame. 



Experiments with spring cereals at the Eastern Oregon Dry-Farming 

 Substation, Moro, Oregon, D. E. Stephens (U. S. Dept. Agr. Bui. 498 (1911), 

 pp. 37, figs. 16). — This bulletin deals with varietal and cultural tests of spring- 

 sown cereals, including wheat, oats, barley, emmer, and grain sorghums, con- 

 ducted at Moro, Oreg., in cooperation with the Oregon Experiment Station 

 during the 5-year period 1911-1915, inclusive. 



The substation is situated at an elevation of approximately 2,000 ft. on a 

 silty loam soil typical of the Columbia Basin in Oregon and Washington. The 

 average annual precipitation in this region for the past 11 years has been 

 11.35 in., while the average seasonal precipitation (March to July, inclusive) 

 for the 5-year period covering these experiments was 3.83 in. The average 

 evaporation from a free-water surface was 45.07 in. during the 7-month period 

 April to October, inclusive, for the same period. The ratios of evaporation in 

 sea.sonal and annual precipitation are higher at the Moro substation than at 

 the Nephi, Utah, or Moccasin, Mont,, substations. The average frost-free period 

 for the 5 years was 155.8 days, with the average date of the last frost (32° 

 F.) May 2 and of the first frost October 5. The average wind velocity was 5.9 

 miles per hour. Considerable meteorological data are tabulated in detail and 

 discussed. 



Seventy-six varieties of spring wheat have been tested two or more years, 

 with Pacific Bluestem used as a standard for comparison in all checks. During 

 the 5-year period Early Baart (C. I. No. 1697) exceeded the standard variety 

 by an average yield of 3 bu. per acre, Koola (C. I. No. 2203-2) surpassed it 

 by 6.3 bu. for the 3-year period 1913-1915, and Karun (C. I. No. 2200-1) by 

 4.9 bu. for the same period. Of all the varieties tested Early Baart gave the 

 highest average yield, 22.2 bu. per acre, for the 5-year period, while the selec- 

 tion from Koola gave the highest average yield of 27.7 bu. per acre for the 3-year 

 period. 



The bearded varieties of common wheat exceeded the yield of the beardless 

 common and club wheats by 1.7 bu. per acre. 



The durum wheats have not yielded so well as the common and club varieties. 

 The average yield of 14 varieties of the latter exceeded the average yield of 



