832 



EXPERIMENT STxVTION RECORD. 



Fraukish lucern, S. P. I. 25,022; sand lucern from France, S. P. I. 23,394; 

 Montana, S. P. I. 23,454 ; and Elche, S. P. I. 22,784. 



A list is given of tlie species and varieties of clovers, mainly from California 

 and Nevada, now being tested. Among the annuals TrlfoUmn amocnum and 

 T. oMuslflorum made the most vigorous growth and among the perennials 

 T. proiluctum and T. wonnskjoldii are given special mention. T. suaveolens, 

 S. P. I. 25,177, was well above ground and green within 3 days after planting 

 and is recommended for trial in the southern part of the State. 



Land plowed in 1907, left fallow during 1908, and seeded to Kubanka wheat 

 in the spring of 1909, yielded 4 bu. per acre. The soil was a heavy clay not 

 adapted to dry farming but representative of the foothill region of the Truckee 

 Valley. 



Two irrigations before heading and 2 after heading, aggregating 1.892 ft. of 

 water, were followed by a higher yield of White Australian wheat, 40.5 bu. per 

 acre, than were larger or smaller amounts of water differently applied. Simi- 

 larly 82.2 bu. of Siberian oats followed 2 irrigations before heading and 3 after 

 heading, aggregating 2.139 ft. of water. Approximately equal yields of Ku- 

 banka wheat, about 31.5 bu. per acre, followed applications of 1.447 and 0.767 

 ft. of water. Seven tons of alfalfa per acre were 

 secured after an application of 2.186 ft. of water as 

 compared with smaller yields from both smaller and 

 greater applications of water. An application of 

 3.042 ft. of water was followed by a yield of 21.8 

 tons of roots per acre. 



The utilization of log'ged-off land for pasture 

 in western Oregon and western Washington, B. 

 Hunter and H. Thompson ( U. S. Dept. Agr., Fann- 

 ers' Bui. Jt62, pp. 20, figs. 5). — Discussions of the 

 extent and need of utilization of logged-off land are 

 followed by directions for burning over and planting 

 such lands for pasture. The adaptability of each 

 of a number of grasses, clovers, and pasture mix- 

 tures for this purpose is discussed and directions are 

 given for seeding and managing the pasture. The 

 use of Angora goats for killing brush is advocated. 



Alfalfa at the Pennsylvania State College, F. D. 

 Gardner {Pennsylvania Sta. Rpt. 1910, pp. 32-36, 

 pi. 1). — Continuing previous work (E. S. E., 18, p. 232), these pages state briefly 

 the methods used in obtaining a stand of alfalfa on a small field at the station. 

 At 14 cuttings made during the 5 years 1905-1909, this field gave an " aggregate 

 yield of 17.06 tons of air-dry hay per acre or an average of 3.41 tons per year." 

 A test of applications of lime, barnyard manure, nitrate of soda, dissolved 

 rock, muriate of potash, and inoculated soil failed to indicate any advantage 

 from the application of lime, but the field was found to have been limed not 

 long before the date of seeding. No marked differences in results followed the 

 use of the different fertilizers singly or in various mixtures. 



The relation of climatic factors to the water used by the corn plant, T. A. 

 KiEssELBACH and E. G. Montgomery {Nebraska Sta. Rpt. 1910, pp. 91-107, 

 figs. 6). — To study the relation of the water content of soils to plant growth 

 and transpiration and of climatic factors to transpiration, corn plants were 

 grown in large galvanized iron potometers (fig. 1) located in a cornfield and 

 exposed to the general climatic conditions which prevailed in the field. 



Fig. 1. — Diagrammatic sec- 

 tion of potometer for 

 studying transpiration of 

 corn. 



