ABSTRACTS OF PUBLICATIONS OF THE AGRirULTURAL EXPERIMENT STATIONS 

 IN THE UNITED STATES. 



Florida Station, Bulletin No. 15, October 1, 1891 (pp. 14). 



Tobacco, J. P. DePass. — General directions regarding tlie culture 

 of tobacco, with incidental references to experiments at the station. 



Indiana Station, Bulletin No. 36, August, 1891 (pp. 32). 



Field experiments with wheat, W. C. Latta, M. S. (pp. 

 110-128). — These iuchuled tests of varieties, rates of seeding, time of 

 seeding, large rs. small seed, rotation rs. continuous grain crop])ing, 

 exi)eriiiients with fertilizers, and trials of a grain tester. Previiuis 

 accounts of similar cxi)eriments may be found in iiulletins Xos. 27 and 

 32 of the station (see Experiment Station Kecord, vol. i, p. 200, and 

 vol. II, p.32<)). 



2'e.st of varieties. — Tabulated data for 22 varieties tested in 1891, with 

 the average yields of these varieties during fi'om 1 to 8 years. In 1801 

 the most i)rodu('tive varieties were Jones Winter Fife. Velvet ChaflF, 

 and J'larly lv«'d C'lawson. The average yield of Velvet Chart" for 8 years 

 was 31.3 bushels per acre. 



Quantiti/ of seed per acre. — Tabulated data are given for the yields of 

 wheat seeded at rates varying from 2 to 8 pecks per acre during 7 y<'ars 

 (188o-t)l). The average yiehl for the 7 years has been from 22.3 to 

 31.5 bushels per acre, increasing with in(treased thickness of seeding. 



Early and late seeding. — Tabulated data are given for the yields of 

 wheat sown in ISSS, l.SSO, and 1800 at difterent dates from Sei)t(Miiber 

 18 to October 18. The results vary in the difterent years, bnf the 

 average yields favor the September sowings. 



Large rs. small seed. — Tabulated data are given for ex]ieriments dur- 

 ing 3 years. The average gain from Lirge seed for the 3 years is 2.5 

 bushels per acre. 



Rotation vs. continuous grain cropping. — The average yields in bushels 

 per acre of all the wheat plats of each .series for 5 years (1887-in) were 

 as follows: Grass and grain 21.8, grain alone 10.0, gain from rotation 

 4.8. Xo fertilizers have been used on either series of plats since the 

 beginning of the exiieriment, and the entire crop has been removed in 

 every case. 

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