658 EXPERIMENT STATION RECOUP. 



Tabulated analyses and valuations are given of 508 samples of fertilizing materials, 

 including nitrate of soda, sulphate of ammonia, dried blood, cotton-seed meal, castor 

 pomace, linseed meal, phosphate rock, dissolved rock phosphate, carbonate of potash, 

 double carbonate of potash and magnesia, sulphate of potash, double sulphate of 

 potash and magnesia, muriate of potash, kainit, "domestic potash," bone manures, 

 slaughterhouse tankage, dry ground fish, nitrogenous superphosphates, special 

 manures, home mixtures, tobacco steins, tobacco dust, vegetable ash compound, 

 wood ashes, cotton-hull ashes, ashes from limekilns and brickkilns, ashes of birch 

 brush, lime, and plaster. 



The fertilizer industry in the South {Tradesman, 52 (1905), No. 9, pp. 128, 

 129). — A table gives the number of establishments, capital invested, and value of 

 products for 12 Southern States. The totals are: Number of establishments, 205; cap- 

 ital invested, $37,189,262; cost of materials, $16,075,357; value of products, $24,- 

 640,131. The fertilizer tonnage for the Southern States during the year ended May 

 31, 1904, is reported as 2,441,887 tons. The consumption of fertilizers in Georgia 

 alone during the season of 1903—4 was 689,916 tons. 



Under what conditions can commercial fertilizers be most profitably 

 employed? (Deut. Landw. Presse, 31 {1904), No. 103, p. 863). — A brief general dis- 

 cussion of this subject with special reference to kind of crop grown; and form, 

 amount, and time and manner of application of the fertilizer. 



FIELD CROPS. 



Agricultural experiments and the presentation of their results, A. Mit- 

 sciierlich {Landw. Vers. Stat., 61 (1904), No. 1-4, pp- 285-303). — This article discusses 

 the different conditions to be considered in planning field experiments and the 

 method of arriving at the results, and the recognition and omission of unreliable 

 tests. 



Report of the agricultural branch of the department of land records and 

 agriculture, Bengal, 1904, S. L. Maddox (Calcutta: Bengal Secretariat Press, 1904, 

 pp. 32). — The results of agricultural investigations under imperial and provincial 

 control and direction are reported, together with information on agricultural and 

 sericultural education. 



It was found that crude nitrate of soda can not be recommended as a fertilizer for 

 rice. Its use in connection with irrigated wheat culture increased the yield in one 

 instance by about 50 per cent. A number of fertilizer experiments with rice, jute, 

 sugar cane, potatoes, and wheat are reported. The use of 10 maunds of castor cake 

 per acre increased the yield of rice, but failed to give a profit. 



Tests in sowing jute indicated that 9 lbs. of seed per acre generally gives the best 

 results. It has been discovered that the seed of the shoots of paddy coming up after 

 the first cutting are highly drought-resistant and prolific, and the results of experi- 

 ments here reported corroborate this discovery. Jute plowed under for green 

 manuring was more effective in increasing the yield of paddy than cow manure. 

 Sesbania aculeata has been found to be well adapted to plowing under for green 

 manure. Castor cake in quantities sufficient to furnish 100 lbs. of nitrogen per acre 

 proved to be the best fertilizer for potatoes. 



Paddy sown at the rate of 60 lbs. per acre yielded 1,641 lbs., as against 2,016 lbs. 

 from sowing 30 lbs. per acre. Fertilizing wheat with poudrette sufficient to furnish 

 40 lbs. of nitrogen per acre gave better yields than any other fertilizer tested. In 

 this test green manuring with sun hemp gave better results than the use of other 

 crops for this purpose. Brief notes are given on tests with new varieties of rice, 

 wheat, and oats. 



Investigations on the rooting and tillering of grains, K. Opitz (Mitt. Landw. 

 Inst. K. Univ. Breslau, 2 (1904), No. 4, pp. 749-812; abs. in Deut. Landiv. Presse, 31 



