638 EXPERIMENT STATION RECORD. [Vol.41 



Variety tests with oats at Columbia resulted in maximum yields ranging from 

 41.1 bu. per acre for Fulghum to 42.2 bu. for Iowa 105. At Maryville, the best 

 varieties ranged from 65.3 bu. for Silvernflne to 69 bu. for Red Rust Proof. 

 Burt and Kherson grown at Warrensburg each produced about 20.5 bu. per 

 acre. Tests with winter oats have thus far been unsuccessful. 



Spring barley produced from 19 to 30 bu. per acre in variety tests at Co- 

 lumbia. It is stated that the crop is fairly safe for the northern part of the 

 State, uncertain for the central part, and generally a failure in southern 

 Missouri. 



Crop production in the northern sand hills [of Nebraska], J. Cowan 

 (Xebraska Sta. Bui. Ill (1919), pp. 5-6).— Work with corn, small grains, po- 

 tatoes, beans, and hay and fodder crops at the Valentine substation is briefly 

 reviewed. See also a previous note (E. S. R., 41, p. 434). 



[Report of field crops work in North Carolina, 1918], C. B. Williams 

 (North Carolina Sta. Rpt. 1918, pp. 28-35). — Variety tests and crop improvement 

 work with cotton, corn, soy beans, cowpeas, wheat, oats, and rye conducted at 

 various points in the State are briefly described in a continuation of similar 

 work (E. S. R., 39, p. 337). The best varieties of field crops grown at the differ- 

 ent experimental centers are indicated in each case. Fertilizer and cultural 

 tests with tobacco are also noted. 



Selected strains of cotton isolated during the past four years are said now to 

 present a uniform type and to have transmitted their qualities during the past 

 two years. While in individual strains the values for size of boll, length of 

 staple, percentage of lint, and height of plant have fluctuated from season to 

 season, the strains have maintained the same relation to each other. The lowest 

 yielding strain produced on the average 81.8 gm. of seed cotton per plant and 

 the highest yielding strain 179.6 gm. In a comparison of Mississippi- and 

 North Carolina-grown seed of the same strain of cotton, very little difference 

 has been noted in the earliness of the plants grown from seed from the two 

 localities, while the Mississippi seed has produced slightly taller stalks and the 

 North Carolina seed a larger yield. 



In a comparison of Rosen with Abruzzi rye the former is said to be gen- 

 erally too late for Piedmont and eastern North Carolina conditions, and also to 

 have produced less early grazing than Abruzzi. In the mountain section of the 

 State Rosen has given some promise for seed production. 



Tests made on the Granville Farm are held to indicate that the yield of to- 

 bacco can be increased by closer planting without injuring the quality of the 

 crop. From 5,000 to 5,500 plants per acre are believed to give the best results. 

 Priming as compared with cutting tobacco resulted in a gain of 240 lbs. per 

 acre. In fertilizer tests conducted at Reidsville an increase in the ammonia 

 content of the fertilizer application was followed by a greater susceptibility 

 to leaf spot and other diseases, while potash appeared to stimulate the resist- 

 ance of the plant to disease. 



[Report of work with field crops in the Netherlands, 1913-1916], P. Van 

 HoKK {Dept. Land!)., Nijv. en Handel [Netherlands], Vcndag. en Medcd. Dir. 

 Landh., No. 1 (1919), pp. VIT+157). — This describes the continuation of similar 

 work previously noted (E. S. R., 32, p. 6.30). The report is divided into two 

 parts, the first dealing with soil fertility tests, variety, cultural, and fertilizer 

 experiments with potatoes and sugar beets, and variety tests with wheat, rye, 

 oats, and barley ; while the second part comprises observations on the estab- 

 lishment and maintenance of pasture land and on weed control. 



[Report of field crops work in the Dutch East Indies], J. Van Bkeda Dk 

 Haan {Jaarb. Dept. Landb., Nijv. en Hatidel Nederland. Indie, 1916, pp. 66-72, 



