434 EXPERIMENT STATION RECORD. f Vol. 41 



tons per acre as compared with 14.3 tons without manure. Commercial fertili- 

 zers have not materially increased the yield of sugar beets. 



Thinning sugar beets on June 8, 18, and 22 resulted in yields amounting to 

 19.26, 19.02, and 15.83 tons per acre, respectively. Potatoes grown on alfalfa 

 land produced more than twice as much as when grown on land never planted 

 to alfalfa. Plowing corn land failed to show any advantage over disking for 

 either oats or barley. In a comparison of pasture crops sweet clover is said to 

 be more promising than any of the grasses tested. It is recommended that 

 sweet clover be sown In the spring with a grain crop and irrigated sufficiently 

 to furnish some pasture the first summer. 



Corn gave tlie best results of the forage crops tested at the Valentine substa- 

 tion. Early seedings of sweet clover (about April 7) gave good results, while 

 alfalfa failed with all seedings made before May 10. Potatoes grown on heavy, 

 unmulched soil from seed produced under mulch showed an increase in yield of 

 20 per cent over those from seed grown by ordinary methods. The Pinto bean 

 appeared to be more drought resistant than any of the other varieties tested. 



Soy beans and cowpeas for North Carolina, V. R. Herman (North Carolina 

 Sta. Bill. 241 {1919), pp. 7-40, figs. iO).— This bulletin reports results of cultural, 

 fertilizer, and variety tests with soy beans and cowpeas conducted at various 

 points in the State in cooperation with the U. S. Department of Agriculture, 

 together with a discussion of the adaptability and utilization of the two crops 

 in North Carolina. 



A five-year rotation of potatoes, rye straw and squashes, onions, oats and 

 rowen, and hay, S. C. Damon (Rhode Island Sta. Bui. 178 (1919), pp. 4-16). — 

 This bulletin comprises a report on the crop yields, the fertilizer ingredients 

 applied and removed, and the total cost, value, and net returns of the various 

 crops in a 5-year rotation, previously described (E. S. R., 36, p. 528), for the 

 period of 1893 to 1916, inclusive. 



It is concluded that "a definite rotation with liberal fertilization and careful 

 cultivation, followed for a long period, results in increased fertility in the soil 

 and in a reasonable profit." The average profit per acre for the different crops 

 was estimated to be as follows: Potatoes, $31.30; rye straw, $10.43; squashes, 

 $13.69; peas (grown for 11 years), $65.58; turnips (gro^\^l for 11 years), $19.85; 

 onions (grown for 13 years), $100; oats, $7.77; and hay and rowen, $7.52. 



The varieties of small grains and the market classes of wheat in Utah, 

 G. Stewart (Jour. Amer. Soc. Agron., 11 (1919), No. 4, pp. 163-169). — This 

 paper, a contribution from the Utah Experiment Station, presents the results 

 of a field survey made in 1918 in an effort to ascertain what varieties of wheat, 

 oats, and barley are grown in the State. Samples of these cereals were col- 

 lected from all available local sources and grown at Logan for identification. 

 Results secured by the Utah-Idaho Grain Exchange in the marlvct grading of 

 wheat for tlie year ended July 31, 1918, are also briefly reviewed. 



These studies are held to indicate that the varieties of small grains grown in 

 Utah are badly mixed, and that varietal names are frequently misapplied. The 

 commonest varieties of wheat and tliose deemed best adapted include Dicklow 

 and New Zealand for irrigated farms, and Turkey, Kofod, Bluestem, and Gold 

 Coin for dry-land farms. Oats are practically standardized to Swedish Select. 

 Market grades substantiate the results of the field survey, 44 per cent of the 

 wheat graded falling in the class of mixed wheat, while other reductions in 

 grade, due to different factors, are considerable. 



Carrying capacity of native range grasses in North Dakota, J. H. Sheppebd 

 (Jour. Amer. Soc. Agron., 11 (1919), No. 4, pp. 129-142, pis. 3, fig. 2).— This 

 paper reports the progress of grazing experiments, conducted by the North 

 Dakota Experiment Station in cooi)erutiou with the U. S. Dei)artment of Agri- 



