FIELD CEOPS. 337 



At the Ralpur farm the application of 20 lbs. of nitrogen in night soil after 

 the Meagher system was followed by greater yields of rice and higher profits 

 than followed applications of 1-year-old poudrette, castor cake, dried leaves, 

 cattle dung, or a mixture of bone dust and saltpeter. Financial losses followed 

 the use of calcium cyanamid, bone dust, and a mixture of bone dust and sulphate 

 of ammonia in this experiment. The application of 30 lbs. of nitrogen to irri- 

 gated wheat resulted in financial losses in each case except when a night soil 

 was used, although the use of castor cake and of 4 applications of calcium 

 nitrate to irrigated wheat was followed by substantial increases in yield. 



Applications of 20 lbs. of nitrogen per acre in night soil, bone dust, a mixture 

 of bone dust and saltpeter, and 1-year-old poudrette were followed by greater 

 5-year average yields of transplanted rice under irrigation than when dung, 

 castor cake, dried leaves, calcium cyanamid, or a mixture of bone dust and sul- 

 phate of ammonia were used. Two other tests of the same fertilizers on trans- 

 planted rice under irrigation gave somewhat similar results. In case of plant- 

 ings of 1, 2, or 3 seedlings or bunches of rice seedlings in holes G in. apart both 

 the yield and the profit decreased as the number of seedlings per hole was in- 

 creased. 



[Fertilizer and variety tests], B. Thompstone (Dept. Agr. Burma, Rpt. 

 Mandalay Agr. Sta., 1910-11, pp. 38). — In a test of bone meal, nitrate of soda, 

 saltpeter, cotton cake, and farmyard manure in various amouuts and mixtures 

 as fertilizers for rice, the 3 highest grain yields were produced by the plats to 

 which farmyard manure was applied. In 2 different localities higher grain 

 yields were produced when the paddy sti-aw was plowed under than when it 

 was burned, but still higher yields were secured when 12,000 lbs. of cattle 

 manure per acre was applied. An application of 6,000 lbs. of cattle manure 

 per acre was followed by much greater grain and straw yields than when 

 hemp, jute, or dhaiucha were plowed under as green manures. 



A greater yield was obtained after dhaincha than after San hemp or indigo 

 used as green manures. 



The results of tests of 16 sorghum varieties, 13 peanut varieties, 6 soy bean 

 varieties, 4 cotton varieties, and of a number of miscellaneous crops are re- 

 ported. 



[Crops and green fodder in winter], G. Marks (Agr. Gaz. N. 8. Wales, 2S 

 (1912), No. 2, pp. 148-155, pis. 2, figs. 3). — This article reports the results of 

 variety tests of wheat, oats, rye, and barley on 5 farms. The use of li cwt. of 

 superphosphate per acre apparently doubled the yield of oats and almost doubled 

 the yield of a mixture of wheat and vetch. 



Cooperative experiments of the department of agronomy, M. F. Miller 

 and C. B. Hutchison (Missouri Sta. Circ. 54, pp. 151-162, fig. 1). — This cir- 

 cular gives directions for the use of farmers who cooperate with the station 

 in fertilizer and inoculation tests of alfalfa, variety tests of corn, oats, wheat, 

 and barley, tests of grass and clover mixtures for the Ozark upland, fertilizers 

 for potatoes, and the adaptation of crimson clover and vetch to Missouri condi- 

 tions are also discussed. 



Emergency crops for overflowed lands in the Mississippi Valley, B. Knapp 

 ( U. S. Dept. Agr., Bur. Plant Indus. Doc. 756, pp. 8). — A brief review of agricul- 

 tural problems growing out of the flood of 1912 is followed by suggestions for 

 producing field and garden crops under the unusual conditions following the 

 flood. 



Top dressing grass lands. — The sowing of red clover, A. E. Grantham 

 (Delaware Sta. Bui.- 95, pp. 7). — Suggestions are given on the spring sowing of 

 clover seed and the top dressing of grass land. 



