126 



EXPERIMENT STATION RECORD. 



of the season; shallow cultivation with a spring-tooth cultivator in the 

 latter part. The results favor listing and shallow cultivation. The 

 author concludes that a judicious mixture of deep and shallow cultiva- 

 tion is preferable to continuing either one or the other through the 

 entire season. 



Subsoiling vs. surface plowing (pp. 233-237). — A series of experiments 

 showed slight differences of yield in favor of surface plowing. Water 

 and soil conditions madesubsoiling of comparatively small importance. 



Butt, middle, and tip kernels for need (pp. 238, 239).— For seed, the butt 

 kernels were taken from ears raised from butt kernels in 1895, and in like 

 manner middle and tip kernels from ears raised from middle and tip 

 kernels. Of the butts 85.9 per cent germinated, of the middle, 90.3 per 

 cent, and of the tips 72.9 per cent. The following table summarizes the 

 results during 5 years. 



Results of planting butt, middle, and tip kernels. 



Nat are of seed. 



Butt kernels.. . 

 Middle kernels 

 Tip kernels 



Bushels. 



55.42 

 5 5.41 

 52. Gti 



1895. 



Bushels. 



18.82 

 1C.85 

 16.14 



Vield per acre. 



1892. 



Bushels. 



3D 90 

 28 19 

 34.73 



1891. 



Bushel*. 



27.40 

 31.64 

 30.57 



Bushels. 



66. 11 

 62. 51 

 61.14 



Bushels 



39 74 

 38. 52 

 39.04 



Varieties (pp. 219-244). — The comparison of yields between early, 

 medium, and late varieties was in favor of late varieties. Besides this 

 experiment, 45 varieties were tested. In an average of three or more 

 years, Early Thompson, Hartman, Early White, Pride of Kansas, 

 Boone County White, Early Yellow Rose, King Phillip, and Champion 

 Yellow Dent ranked in the order named, yielding over 50 bu. per acre. 



Cooperative fertilizer experiments with cotton in 1896, J. P. 

 DuGGAR (Alabama College Sta. Bui. 78, pp. 37-81).— In addition to 

 experiments on the station farm, 27 fertilizer experiments were carried 

 on in as many localities under the same instructions. Reports were 

 received from 21 experimenters and conclusions were drawn from 14 of 

 the most conclusive of these reports. Results from the various experi- 

 ments are tabulated. 



Of cotton-seed meal, 922 lbs. proved equal in fertilizing value to 

 2,000 lbs. of crushed cotton seed; that is, with cotton-seed meal at $20 

 per ton, crushed seed as a fertilizer was worth $9.20. In the experi- 

 ments 200 lbs. per acre of cotton-seed meal was used to furnish nitro- 

 gen, 240 lbs. aeid phosphate to supply phosphoric acid, and 200 lbs. of 

 kainit to furnish potash. These fertilizers were applied by twos and 

 threes. The average increase of yields over unfertilized plats was 454 

 lbs. of seed cotton with the complete fertilizer, 378 lbs. with cotton seed 

 meal and acid phosphate, 375 lbs. with cotton seed meal and kainit, and 

 322 lbs. with acid phosphate and kainit. 



