340 



EXPEEIMENT STATION EECOKD. 



Buckwheat and cowpeas were grown under like soil conditions as soy beans 

 for comparison of their value as cover crops and harvested at the same time 

 with the following results: 



Comparative yields per acre in 1913 of sop heans, coivpeas, and tucTcwheat. 



Other tables show analyses of soy-bean crops grown under various conditiona 



[Field experiments with sugar cane], J. T. Crawley (Porto Rico Sugar 

 Producers' 8ta. Bill. 5 [Enr/lish Ed.'], pp. 5-21). — This report gives some results 

 of fertilizer experiments with sugar cane, continuing previous work (E. S. B., 

 28, p. 423). 



An average increase of 6.8 tons was harvested with the aid of complete fer- 

 tilizers, and limed areas yielded better than unlimed. Trials showed the hole 

 system of planting cane to be slightly superior in point of yield on a 2-year 

 average than the furrow system. In distance planting it was noted that close 

 (width between rows 4 ft.) planting gave larger yields, especially the first year, 

 than wider (5 and 6 ft.) planting and reduced the cost of cultivation. 



The results of cooperative tests of over 20 varieties of cane are reported. 

 The report on seedling work covers the growing of about 2,000, and the an- 

 alyses of about 300. The damage to roots, stalks, and leaves by insect pests 

 is also noted. 



Sugar-cane culture in Cuba, R. S. Cunllffe (CtiM Mag., 3 {1912), No. 12, 

 pp. 717-722, figs. 6). — This article describes the methods of producing sugar 

 cane in Cuba on the 4 principal classes of soils, viz. red lands; black soils; 

 brown, cholocate and mulatto soils; and savannah lands. The results of ex- 

 periments at various places showed marked increased yields by the use of 

 commercial fertilizers. Using 237 lbs. nitrate of soda, 95 lbs. sulphate of am- 

 monia, 4,333 lbs. basic slag, and 114 lbs. sulphate of potash, there resulted a 

 yield of 72,150 lbs. per acre, an increase of 59,683 lbs. over the unfertilized 

 plat. On omitting the nitrogen the apparent increase was 60,666 lbs. ; omitting 

 the potash it was 61,534 lbs.; and omitting the phosphoric acid it was 41,816 

 lbs. per acre. 



Seedling canes and manurial experiments, J. P. d'Albuquerque et al. 

 (Local Dept. Agr. Barbados, Seedling Canes and Manurial Expts., 1910-1912, 

 pp. 68). — This reports progress in sugar-cane work in continuation of that 

 previously noted (E. S. R., 26, p. 837). 



In an experiment to determine the deterioration of cut canes, 3 tons of White 

 Transparent canes were cut from part of a field and so mixed together that 

 60 fairly uniform sample lots, each of 100 lbs. weight, could be drawn from the 

 heap. Of these 60 bundles, 3 were crushed as soon as cut and the juice an- 

 alyzed, 19 bundles (series A) were exposed to sun and air in the open, 19 

 bundles (series B) were covered with trash and left in the open, and 19 bun- 

 dles (series C) were covered with trash and sprinkled with water once daily. 

 The canes were cut on May 6 and 7, and each subsequent week day one bundle 

 of canes from each of series A, B, and C was reweighed, crushed, and the juice 

 analyzed. 



