232 EXPEKIMENT STATION RECORD. 



Improved, Cocke Prolific, iind Boone County White. Tlie yields at Edgecombe 

 Farm during the past 7 years in these comparative tests have ranged from 6.2 

 bu. to 26.G bu. per acre. The average results for 7 years at PMgeconibe Farm 

 are in favor of planting tlie corn 4 ft. by 3 ft., while at Iredell Farm the average 

 of 6 years' tests favors 5 ft. by 2 ft. planting. 



Report upon variety and fertilizer experiments with cotton in the boll- 

 weevil infested sections of Louisiana, W. Newell and A. H. Rosenfeld {Crop 

 Pest Com. La. Circ. 26, pp. 65-S6). — At P>ayou Pierre 6 A-arieties were planted 

 March 30 and April 1. On May 11 a])proximately 58 weevils per acre were found 

 in the plats, and by May 28 the average number of over-wintered weevils had 

 increased to 155 per acre. On June 13. 2 per cent of the squares on the plats 

 were infested as compared with 3.5 to 12 per cent in fields near timber. 

 On July 9 the average number of bolls per plant for the different varieties 

 were as follows: Hawkins Early Prolific, 17.8 bolls per plant; Improved Peter- 

 kin, 15.8; Mebaue Triumph, 12.4; Seago, 11.4; Keno, 10.9; and "native," 10.9. 

 On this date an average of 11.33 per cent of the squares and 4..33 per cent 

 of the bolls were infested on the plats. Of the varieties compared Keno led 

 with 743 lbs. of seed cotton per acre at the first picking, August 19 to 29, fol- 

 lowed by Hawkins Early Prolific with 702 lbs. These varieties gave a total 

 yield of 1.031 and 911 lbs., respectively. 



At Mansura 2 adult boll weevils were found while planting April 1. April 23, 

 23 weevils were found per acre; May 2.5, 109; and June 2. 283. June 2, 6 per 

 cent of the squares were infested. July IS the fruitage on the plats was as 

 follows: Toole Early Prolific. 11. G bolls per plant; Hawkins Early Prolific, 

 10.8 ; Rowden, 8.2 ; King, 8.1 ; Simpkins, 8.1 ; Triumph, 6.5 ; and " native," 6.5. 

 On this date 54 per cent of the squares and 2 per cent of the bolls were in- 

 rested. The first open boll was found in Toole Early Prolific. In total yield, 

 as well as in yield at the first picking, Hawkins Early Prolific ranked first 

 with 503 and 212 lbs. of seed cotton \)ev acre, resi)ectively. Toole Early Pro- 

 lific ranked next in total yield and Mebane Triumph in earliness. The results 

 of other variety tests are briefly repoi-ted. 



In the fertilizer test on the rich alluvial soil at Bayou Pierre the results 

 varied considerably, but nitrate of soda apparently increased the crop wher- 

 ever used. At Mansura on dark, rather sandy loam, the nitrate was not so 

 effective. The excessive weevil infestation prevented the utilization of the 

 fertilizer ap))lied. 



The obstacles in the way of late planting to avoid weevil injury are pointed 

 out and the results obtained in experiments along this line, which have been 

 previously noted (E. S. R.. 19, p. 31), are briefly summarized. 



Variety and distance tests of cotton, G. M. Macnider et al. (Buh N. C. 

 Dept. Agr., 30 (1909), No. 2, pp. 37-65).— The results of variety tests with 

 cotton are tabulated in detail, notes on the varieties tested in 1908 are given, 

 and early, medium, and late varieties, and large-boiled varieties and those 

 having a high percentage of lint are pointed out. 



Russell Big Boll and Culpepper Improved have given the best average yields 

 during 9 years at Edgecombe Farm, and King Improved, King Improved Native, 

 and Edgeworth the highest average yields for 6 years at the Iredell Farm. 

 During this time the differences in yields ranged from 530 to 915 lbs. of seed 

 cotton per acre with the number of varieties ranging from 7 to 31, and from 

 455 to 505 lbs. of seed cotton per acre at the Iredell Farm with the varieties 

 ranging from 9 to 30 in number. At Edgecombe Farm during the past 4 years 

 the best average results were secured by planting cotton 3J ft. by 16 in., and 

 at the Iredell Farm during the past 6 years by planting 3^ ft. by 16 in. 



