1917] FIELD CHOPS. 823 



fall-irrigated plats than in the corresponding depth of the check plats. No 

 effect was noted beyond the third foot, the differences in tlie upper 3 ft. occnr- 

 ring at a time when all plats contained abundant moisture and disappearing 

 before the end of June. No significant differences were found in 1915 or 1916. 



The failure of fall irrigation to increase crop yields in these experiments 

 appears to be attributable to the character of the soil. Being a heavy clay, 

 absorption occurred only when the soil was dry, and was followed rapidly by 

 expansion, which so compacted the soil that it became impervious and hindered 

 the storage of water in the lower deptlis for the use of the crops. 



Progress report, Substation No. 2, Troup, Tex., 1901-1914, W. S. Hotch- 

 Kiss (Texas Sta. Bui. 209 (1917), pp. 1-13, S3 fig. i).— Variety tests with cot- 

 ton and corn for 1912-1914, inclusive, and fertilizer tests with sweet potatoes 

 for 1907, 1908, and 1911 are noted, supplementing a previous report (E. S. R., 

 21, p. 536). 



The average yields of the ten highest-yielding cotton varieties tested two 

 or more times varied from 690 lbs. of seed cotton per acre for Half and Half to 

 756 lbs. for Texas Oak. Mebane, second with an average yield of 732 lbs. of 

 seed cotton, is deemed superior to the other varieties tested because of its 

 high yield of lint, averaging 38 per cent, and because of other desirable 

 qualities. 



In the corn variety tests Munson with 22.9 bu., Red Indian Chief with 22.1 

 bu., Strawberry with 20.5 bu., Oklahoma White Wonder vdth 20.4 bu., and 

 Texseed Giant White with 19.1 bu. gave the highest average yields for two 

 years. 



In fertilizer tests with sweet potatoes the best results were obtained with 

 acid phosphate and cottonseed meal, both when used singly and in combination, 

 a mixture of the two being deemed advisable. An average increase of 30.3 bu. 

 per acre for the three years of the test was attributed to acid phosphate and 

 an increase of 33.3 bu. per acre to cottonseed meal. Potash is regarded as 

 unnecessary on the soils on which these tests were conducted, while nitrate 

 of soda, although giving good results, must compete with cottonseed meal as a 

 'source of nitrogen. 



Report of the Bermuda Board of Agriculture, 1914—15, E. J. Wortley 

 (Rpts. Bd. Agr. Bermuda, 1914-15, pp. 21-26, 27-32). — A general administrative 

 report including a brief discussion of seed-potato improvement. 



[Field crops work in Arg'entina], J. M. Huergo (Min. Agr. Argentina, Mem. 

 Cong. Nac., 1914-15, pp. 42-45, 46, 50-53, 55, 56).— Brief reports are given of 

 wheat improvement through selection, the importation and production of 

 potatoes, alfalfa seed importations, the cotton industry, the production of rice, 

 seed analyses, the classification of commercial seeds, the production of barley 

 for brewing purposes, and tobacco production, for the year 1914-15. 



[Field crops], P. Symeonides (Cyprus Agr. Jour., No. 44 (1917), pp. 974-978, 

 pi. 1). — Fertilizer, variety, and cultural tests with wheat, barley, oats, rye, 

 and canary seed are reported for the season of 1916. Further notes are given 

 on " Sitarokrithi " (E. S. R., 34, p. 339), the so-called wheat-barley hybrid. 



[B-eport of field crops work at the Bankipoor Agricultural Station, 1915- 

 16], G. Shebrard (Rpt. Dept. Agr. Bihar and Orissa, 1915-16, pp. 43-49). — 

 Fertilizer and cultural experiments with rice are reported for the year. An 

 application of 4 tons of manure showed a net profit of .$6.18 per acre as com- 

 pared with $4.43 from an application of one-half that amount. Acid phos- 

 phate applied at the rate of 120 lbs. per acre showed a net profit of $10.06. but 

 when supplemented by 160 lbs. of ammonium sulphate of $7.48. 



