650 EXPERIMENT STATION RECORD. 



phates mined in 1902 Florida fnrnished 839,345 long tons, Tennessee 429,902 tons. 

 Sonth Carolina 285,625 tons, North Carolina 25,000 tons, Pennsylvania 875 tons, 

 The occurrence of phosphate deposits in Arkansas, Georgia, Texas, New Mexico, 

 Missouri, and Alabama, and the discovery and exploitation of new deposits in 

 Africa, Australia, New Zealand, Algeria, Tunis, and Christmas, Ocean, Swan, and 

 Marcus islands are noted. 



FIELD CROPS. 



Report of the North. Iiouisiana Experiment Station for 1901, D. N. Barrow 



{Louifiiana Stas. Bid. 71, 3. ser., pj>. 9o0-9o3) . — This report presents the work of the 

 station for 1901, which included rotation and irrigation experiments and variety, 

 fertilizer, and culture tests w'ith different field c-rops. 



Among 36 varieties of corn Virginia White Dent and Gandy gave the most profit- 

 able returns. Champion Yellow Dent and Red Driver yieldeil more grain than 

 Gandy but were less profitable on account of the smaller yield of stover. Six sweet 

 corn varieties were tested and of these Stowell Evergreen and Country Gentleman 

 produced the largest yields of grain and stover. Mexican June corn, planted June 3, 

 yielded 20 bu. per acre of very good corn. The cost of cutting and shredding stover 

 is estimated at $1.50 per ton. The composition of corn stover, timothy hay, and 

 Johnson grass is given. 



In the variety tests with wheat Fultz led with a yield of 28 bu. per acre, followed 

 by Red Maywith 27 bu. and Harvest King with 26.2 bu. All varieties were harvested 

 the last week of May. Wheat is considered the best winter grazing crop for that 

 region. 



Of 20 varieties of cotton under test Hagerman produced the highest yield of seed 

 cotton, 1,680 lbs. per acre. This variety was followed by Boyd Prolific and Peerless 

 with a yield of 1,575 lbs. each. Peterkin Improved gave 31.5 per cent of lint, which 

 was the highest percentage produced. Fertilizer tests with cotton were inconclusive. 



The results in rotation and irrigation tests were largely in favor of the jjlats under 

 rotation and irrigation. The quantity of water in inches required to mature the 

 different crops in 1901 was as follows: Sugar cane 29.40, cotton 18.70, cowpeas 18.70, 

 corn 18.16, sorghum 15.63, tobacco 11.87, and watermelons 11.06. The analyses of 

 sugar cane showed that irrigation not only increased the tonnage but the sugar con- 

 tent as well. 



The following leguminous crops were tested: Cowpeas, velvet beans, ]>eanuts, 

 clover, and alfalfa. Yields of 3,234 lbs. of crimson and 3,732 lbs. of red clover hay 

 were obtained per acre. Alfalfa yielded a total of 2.2 tons per acre. Spanish pea- 

 nuts yielding 4,410 lbs. of hay with the nuts attached were more profitable than 

 Virgmia j^eanuts. 



Three varieties of pumpkins. Large Cheese, Kentucky Field, and Cashaw or Crook 

 Neck, yielded 7,168, 6,865 and 4,280 lbs. per acre, respectively. 



Notes are given on the culture of rescue grass, redtop, rape, and tobacco. The 

 work of the station with swine, sheep, and poultry is briefly described. 



Fixation of atmospheric nitrogen by alfalfa on ordinary prairie soil under 

 various treatments, C. G. Hopkins {Jour. Amer. Chem. Soc, 24 {1902), No. 12, 

 pp. 1155-1170, pis. 2). — More fully reported in Bulletin 76 of the Illinois Station 

 (E.S.R.,14,p.563). 



Experiments with barley, Remy {Deut. Landw. Presse, 29 {1902), Nos. 87, p. 706, 

 Jig. 1; SS, pp. 715, 716). — Breeding experiments were conducted to originate plants 

 adapted to dry localities, and the results obtained and the conclusions drawn are here 

 presented. The measurements and weights of the different parts of the plant for 

 eac-h season from 1900 to 1902, inclusive, are given in tables. Two strains of Hanna 

 and Goldthorpe l)arley differing in moisture requirements have been obtained and 



