No. 3, January, 1922] AGRONOMY 141 



Kota, a common wheat, has proved strongly rust resistant, is evidently resistant to drought, 

 has yielded well, and has proved to be a first class milling and baking wheat. — Durum wheats 

 generallyhaveoutyielded common wheats. They are more vigorous growers and generally 

 more resistant to drought and rust. Durum wheat flour is lacking in strength of gluten. 

 Of the Durum varieties, Kubanka is superior to Arnautka. Monad and Acme, 2 new 

 varieties strongly resistant to stem rust, have decidedly outyielded Kubanka. The red 

 Durum, D-5, is strongly resistant to stem rust but is decidedly inferior in milling and baking 

 value and for the manufacture of edible pastes. — L. R. Waldron. 



913. Thatcher, L. E. Rate of seeding as affecting yields of wheat. Monthly Bull. 

 Ohio Agric. Exp. Sta. 6: 111-115. 1921. — The author gives a report of yields from various 

 sections of the state where seedings were made at rates varying from 3 to 10 pecks per acre. 

 Using these as a basis, brief discussions are given of the relation of rates of seeding to richness 

 of soil and to tillering. — R. C. Thomas. 



914. Thorne, C. E. Fertilizing the corn crop. Monthly Bull. Ohio Agric. Exp. Sta. 6: 

 35-37. 1921. — Records of increases in yield of corn in a 5-year rotation of corn, oats, wheat, 

 clover, and timothy show that where acid phosphate and other fertilizers are used, a period 

 is reached in which something besides commercial fertilizers is needed. The cheapest and 

 most effective commercial carriers of nitrogen and potassium are nitrate of soda and muriate 

 of potash. Moreover, barnyard manure, reinforced with acid phosphate at the rate of 40 

 pounds per ton of manure and spread upon the land during the winter at the rate of 8 tons per 

 acre, has given in a 3-year rotation of corn, wheat, and clover an average annual income of 

 $16.71 against $10.39 per annum for the most effective chemical fertilizer. — R. C. Thomas. 



915. Thorne, C. E. Fertilizing the wheat crop. Monthly Bull. Ohio Agric. Exp. Sta. 

 6: 99-107. 1921. — The article includes a discussion of the following important factors in 

 economy in wheat production: Adjustment of rotation, early and thorough preparation of 

 seed bed, selection of variety, liberal use of seed, and liberal fertilizing. — R. C. Thomas. 



916. Thorne, C. E. Thirty-ninth annual report. Ohio Agric. Exp. Sta. Bull. 346. m- 

 xxxx. 1921. — The report includes a discussion of the following experiments: (1) Phosphorus 

 combinations and availability in soils; (2) relation of soil supply of phosphorus and nitrogen 

 to the protein and carbohydrates of wheat; (3) sulphur requirements of crops; (4) physiology 

 of nitrification; (5) Azotobacter studies; (6) increase and fixation of desirable qualities in 

 cereals; (7) study of variation in pure lines of winter wheat; (8) sulphofication in relation to 

 ammonification and nitrification; (9) factors relating to the lodging of the small grains; (10) 

 procedure for measuring possible changes in soil potassium produced by treatment and 

 cropping. — R. C. Thomas. 



917. VoLKART, A., A. Grisch, UNO W. Bandi. Zweiundvierzigster Jahresbericht der 

 Samenuntersuchungs- und Versuchsanstalt Oerlikon-Ziirich. [Forty-second annual report of 

 the seed testing station at Oerlikon, Zurich.] Landw. Jahrb. Schweiz 35: 67-89. 1 fig. 1921. — 

 A report of the seed-testing work for the year 1918-19 is presented, together with a summarized 

 statement of the results of seed tests from 1876 to 1919. Information is also given regarding 

 field tests with cereal and forage crops and the control of plant diseases. — J. D. Luckett. 



918. Waldron, L. R. Winter wheat in North Dakota. North Dakota Agric. Exp. Sta. 

 Bull. 151. 8 p. 1921r-The bulletin summarizes experiments with winter wheat conducted 

 at 5 stations and upon several demonstration farms in North Dakota. Results have been 

 almost uniformly negative although winter wheat has shown somewhat greater success at 

 Dickinson and Williston, in the western portion of the state, than at Fargo, Langdon, or Edge- 

 ley, in the eastern portion. It will be necessary to secure hardier varieties if winter wheat is 

 to be grown in North Dakota on a commercial scale. — L. R. Waldron. 



919. Wenholz, H. Nomenclature of maize varieties. Agric. Gaz. New South Wales 32: 

 536. 1921. — The names Fitzroy and Wellingrove are applied to 2 established yellow dent 

 varieties. Ulmarra White Cap, Large Red Hogan, and Manning Silvermine are applied to 3 

 varieties essentially new. Brief notes are given. — L. R. Waldron. 



