FIELD CROPS. 153 



rentage of marketable tubers than planting 4£ or 6 in. leep. Shallow planting also 

 produced earlier maturity. Level cultivation proved more profitable than throwing 

 soil to the row and hilling the plants. A second crop of Triumph from home-grown 

 seed ripened a week later than the name variety grown from northern seed. Home- 

 grown and northern-grown peed of Triumph planted March 26, yielded 36 and 24 

 bu. per aire, respectively. Thorburn, Irish Cobbler, and Eureka, yielding 68, 67, 

 and 53 bu. per acre, respectively, were the most productive ami »ng the varieties tested 

 on plats which received no fertilizer. 



In connection with fertilizer experiments it was observed that the gray, sandy 

 clay soil with red subsoil at the station responded more profitably to arid phosphates 

 than to any other single fertilizer. In complete fertilizer applications over 6 percent 

 of potash was unprofitable, while from 8 to 10 per cent of phosphoric acid largely 

 increased the yield. Cotton-seed meal applied shortly before planting did not 

 become available in time to be of benefit to early potatoes. 



Competitive potato culture in Belgium in 1903, L. Laceoix (Jour. Soc. Cent. 

 Agr. Belg.,51 (1904), No.5, pp. 1S5-1S7). — The variety grown was President Kruger, 

 and the areas devoted to the test varied from 1 to mure than 25 ares. The maximum 

 yields per hectare were as follows: Plats containing more than 25 ares, 59,500 kg.; 

 plats from 10 to 25 ares in size, 65,150 kg.; plats from 5 to 10 ares, 64,532 kg.; and 

 plats containing 1 to 5 ares, 44,422 kg. 



The effect of frequent cultivation on the yield of potatoes, Bachmann 

 (Dent. Landw. Presse, 31 (1904), No. 19, p. 162). — Potatoes grown on a poor, sandy 

 soil were given different fertilizer applications and some plats were hoed once and 

 others 3 times. Frequent cultivation in all cases gave the highest yields, the greatest 

 increase being obtained on the plats receivinga complete fertilizer. Where nitrogen 

 was not given in the fertilizer the increase was smallest, while the absence of phos- 

 phoric acid did not show such marked effects on the yield. 



Variety tests with potatoes at Capelle, F. Desprez (Semaine Agr., 24 (1904), 

 Xo. l in.', pp. 93, 94). — The tests comprised varieties for industrial and feeding pur- 

 poses and for general consumption. The leading varieties in the different groups 

 were as follows: Fm- industrial anil feeding purposes, Geante blanche, G. bleue, Pro- 

 fessor Withmann; for industrial purposes and general consumption, Jaime ronde, 

 Profeasi >r Maercker, Fleur de pecher; tal »le varieties, Georges Poulet, Magnum 1 lonum, 

 Preciosa, Blanche francaise; and as an especially line table variety, Marjolin hative. 



Rice, W. C. Stihbs, W. R. Dodsox, and C. A. Browxe, Jr. (Louisiana Stas. />'»/. 

 77, :. •«'/-., i>{>. 862-393, pis. 18). — This bulletin is a revision of Bulletin 61 of the station 

 ( F. S. P., 12, p. 741), including additional information gained since it was issued. 

 Statistics on the production and importation of rice are shown, the lands suitable for 

 rice culture in Louisiana are described, and general directions for the culture of the 

 crop are given. The analyses of water from different localities used in irrigating rice 

 are recorded in a table, and the fertilizing elements contained in these w r aters per 

 acre irrigated are estimated. 



Green and yellow grained rye and their yields under field conditions, 

 Reichert ( lllus. Landw. Ztg., ,.'4 {1904), No. 20, pp. 217-219, figs. 7).— Different 

 experiments with the 2 kinds of rye are reviewed, and attention is called to the fact that 

 on heavy as well as light soils the yields were in favor of the green-grained varieties. 



In all tests but one the protein content of the green-grained rye was larger than 

 in the yellow-grained strains. In the one experiment the green rye contained 12.7 

 per cent of protein and the yellow 14.4 per cent, but the total amount of protein pro- 

 duced per morgen was 265.17 lbs. and 167.04 lbs., respectively. Average results show 

 that the green-grained varieties contained about 4 per cent more protein than com- 

 monly grown varieties of rye. 



Relation of sugar beets to general farming, C. 0. Townsend i. U. S. Dipt. igr. 

 Yearbook 1903, pp. 399-410, ph. 3). — This article, in addition to pointing out the 



