34 



EXPEKIMENT STATION RECORD, 



with soil moisture and nitrogen acciuuulated by the time of sowing and started 

 rapidly, but later the dry fall, unfavorable winter, and cool spring restricted 

 vegetative growth and caused a low amount of dry matter. Favorable condi- 

 tions at the time of flowering and ripening led to a rather larger yield than 

 that of 1907, as shown by the following table: 



Yields of winter wheat and rye in 1901 and 1908. 



Sunnner cereals were sown April IT with about 23 per cent of moisture in 

 the upper 25 cm. of soil. The i-ainfall of the pi'eceding month was 21.4 mm. 

 or one-half that of the corresponding period of the year before. Because of 

 cold weather, siirouting required S to days, or 4 days longer than in 1907. 

 In 1907 the weight per 1,(X)0 grains of wheat was 27.07 gm., of oats 26.39 gm., 

 and of barley 37.57 gm., while in 1908 these weights were 35.05 gm., 29.75 gm., 

 and 37.57 gm., respectively. The yield of wheat in 190S exceeded that for 1907 

 by 25.2 poods per dessyatina, and of oats and barley by 4 poods per dessyatina. 

 As in previous years, 6 poods per dessyatina proved the best rate of seeding. 



Occupied fallows surpassed green fallows, if occui)ied by early crops and 

 plowed twice on harvesting these crops. Coi-n fallow yielded lower crops than 

 black fallow, but gave greater benefit to the winter cereal in a 3-yeiir rota- 

 tion. An application of 2,400 poods of manure per acre gave a yield 1.6. times 

 as great as an application of one-half that amount, and a straw yield 2.72 times 

 as great. 



Other experiments conducted with summer crops related to methods of sow- 

 ing, depth and time of plowing, and variety tests. 



[Yields of small grains; alfalfa, and timothy in Nevada], G. H. True 

 (Nevada 8ta. Bui. 66, pp. 21-2Ji). — The highest yield of wheat reported is 

 75.58 bu. per acre-foot of water, secured from February seeding with one irri- 

 gation. Seventy-eight bu. of Siberian oats and 90.0 bu, of barley per acre-foot 

 of water were likewise secured with one irrigation. At the Dangberg ranch, 

 92.03 acres of barley, irrigated 3 times, produced an average yield of 84.5 bu. 

 per acre, or 31.5 bu. per acre-foot of water, while the first cutting of 3.87 tons 

 of alfalfa and timothy was followed by a second crop of 2.46 tons of alfalfa 

 per acre, and 50 acres of alfalfa alone produced 5.8 tons per acre at 2 cuttings. 

 Among the wheat varieties at the station, receiving no irrigation after plow- 

 ing, Crimean, S. P. I. No. 1559, and Turkey, S. P. I. No. 1571, produced the 

 highest yields, 30.6 and .30 bu. per acre, respectively. 



On the seeding and maintenance of grass land, H. J. Dannfelt (K. Landthr. 

 Akad. Hand!, och Tidskr., //8 (1909). No. 6\ pp. //6*.5-.53.'/).— Digests of recent 

 investigations and practical experience as to the value of different species of 

 grass and le.gumes for permanent pastures are given, and the best methods of 

 preparing the land, the kinds and quantities of seed mixtures to be used, 

 methods of irrigation, fertilization, and reseeding discussed in detail. Examples 

 of successful pasture management on A^arious Swedish soils are cited. 



[Handbook for dry farmers] (Dry Farming Cong. Bui., 3 (1910), No. 3. 

 pp. 295). — This number contains a complete stenographic report of the fourth 

 dry farming congress, October 26, 27, and 28, 1909, 



