36 EXPEEIMENT STATION RECORD. 



the 12-in. planting has given the lowest yield of all." During the seasons of 

 excessive rainfall the 4-in. plantings make the large yields. In seasons when 

 the rainfall is short or moderate the lead over the 12-iu. planting is less than 1 

 ton per acre on the average. 



Cane was found to be inferior to com for silage under Ohio conditions. 



In a variety test of both saccharin and nonsaccharin varieties of sorghums 

 covering 7 years the average yields of green forage per acre ranged from 4.8 to 

 13.9 tons for the different varieties. Yields in millet variety tests for 7 years, 

 including 9 varieties, ranged from 0.6 (Early Fortune broom corn) to 9.2 

 (Japan barnyard) tons per acre of dry forage. 



Of oats and field peas it is noted, from tests in seeding them, 1 : 2, IJ : 1^, and 

 2 : 1 bu. per acre, " that when total tonnage is the chief object, oats should 

 predominate, and when the chief object is feed of high quality the peas should 

 be in excess." 



Plants introduced into a desert valley as a result of irrigation, S. B. 

 Pabish {Plant World, 16 {1913), No. 10, pp. 275-280).— In this article the 

 author notes the extent of occurrence of the following weeds that have been 

 introduced into the Imperial Valley, Cal., incidental to crop cultivation : Ainar- 

 (inthus palmcri, Ambrosia psilostavhua, Aster exilus, A. spiriosus, Atriplex semi- 

 haccata, Baccharis glutinosus, Brassica nigra, Clilons elegans, Chcnopodium 

 muralc, Cynodon dactylon. Datura discolor, Echinochloa zclagensis, E. colona, 

 Eclipta alba, Erigeron canadensc, HcUanthus annuus, Holcus halepcnsis, Lcpto- 

 chloa imbricata, Lippia nodlflora, "Malva parviflora, Melilotiis indica, Paspalunh 

 distichum, Pluchea sericea, Physalis wrightii, Portulaca oleracea, Salix exigua, 

 Scirpus paludosus, Selaria glauca, Sesbania macrocarpa, Sesuvium sessile, Sida 

 hcderacea, Solanuni clcagnifoUam, Sonchus aspcr, 8. oleraceus, Tribulus terres- 

 tris, Xanthiiwi commune, and X. canndense. 



Irrigation experiments, G. H. Tkue et al. {Nevada 8ta. Rpt. 1913, p. 11). — 

 One season's results of irrigation experiments with White Australian wheat 

 and Siberian oats are here reported. The schedule of irrigation was based 

 upon the time of heading of the grain and varied from 3 irrigations before and 

 2 after heading to 1 before and 1 after heading. 



The largest yield of wheat, 549 lbs. per acre, was obtained with 2 irrigations 

 before and 2 after heading, which applied water to the depth of 0.92 ft. ; the 

 smallest yield, 332 lbs. per acre, with 1 irrigation before and 1 after heading, 

 which applied water to the depth of l.OS ft. 



With oats the largest yield, 340 lbs. per acre, was obtained with 1 irrigation 

 before and 2 after heading, which applied water to the depth of l.OS ft. ; 

 smallest yield, 232 lbs. per acre, was obtained with 1 irrigation before and 1 

 after heading, which applied water to the depth of 0.89 ft. 



Comparative fertilizer experiments with lime nitrogen, sulphate of am- 

 monia, and nitrate of soda on some hoed crops in 1912 {Landio. WchnM. 

 Schles. Hoist., 63 {1913), No. 52, pp. IO4O-IOU) .—Compared on a basis of net 

 returns, the nitrate of soda plat was the only one that gave a uniformly profit- 

 able yield with beets. The lime nitrogen and ammonia plats did not always 

 show a net profit, although the average of seven tests gave a positive return. 



AVith potatoes the only plats to give" a uniformly profitable return were those 

 that received lime nitrogen ; the other plats showed fluctuations. The average 

 of 5 tests shows a plus return with the sulphate of ammonia and a minus i-eturu 

 with the nitrate of soda. 



With cabbage the yields from the sulphate of ammonia plats were the only 

 ones that gave a uniformly profitable net return, while both of the other plats 

 gave some losses. 



