334 ' EXPERIMENT STATION RECORD. I Vol. 43 



plants were 2^ ft. hif^h and the otluM- when they were ready to tassel, in- 

 creased the average yield per acre by G bu. 



Marketing hemp, J. R. Humphrey (KenUicky Sta. Bui. 221 {1919), pp. 25- 

 ^3, figs. 6). — This bulletin presents a historical review of the hemp industry in 

 Kentucky, describes methods of preparing hemp for market, discusses mar- 

 keting methods at home and abroad, points out the advantages of grading and 

 of establishing market standai'ds, notes the uses of hemp in the United States, 

 and considers the export outlook and the future of the industry. 



An experiment to determine the comparative ad\mntages of cooperative 

 sales of hemp between the farmer and the manufacturer was carried out in 

 1917. Farmers' associations were formed for grading, baling, and storing the 

 fiber preparatory to selling the product. It developed that the mills did not 

 favor direct buying on account of added expense, lack of information regarding 

 the reliability of the shipper, and lack of faith in the samples submitted. 

 To overcome these difliculties part of the hemp was sold on a commission basis 

 through a single agent held responsible for the grading, selling, and collection. 

 The experiment resulted in a profit to the participating farmers, and pointed 

 out the possibility of profitable hemp marketing by proper stabilization of 

 grades and standardization of processes of preparing fiber for market. 



[Methods of marketing hemp], J. R. Humphkey {Kentucky Sto. Rpt. 1918, 

 pt. 1, pp. 61-63). — A brief report on the work noted above. 



Kudzu, C. V. Piper {U. S. Dept. Agr., Dent. Circ. 89 {1920), pp. 7, figs. 2).~ 

 A description of kudzu {Pueraria thunbergiana) is given, and the culture and 

 uses of the plant for grazing, soiling, and hay are discussed. 



Experiments with oats, F. A. Wet^ton {Ho. Bid. Ohio t'^ta., 5 {1920), No. 3, 

 pp. 79-84, figs. 2). — The data presented comprise earlier results previously noted 

 (E. S. R., 34, p. 631), together with those obtained np to and including 1919 



The average yields obtained in 10 years' work show that disking as com- 

 pared with plowing gave slightly larger yields in both grain and straw on a 

 silt loam soil on which the weeds were kept in check. The results of 

 16 years' experiments on the rate of seeding showed a gradual increase in 

 yield up to and including the 10 pk. per acre rate, although from the use of 

 9, 10, and 11 pk. per acre the variation in net yield was less than 1 pk. 

 A comparison of 4 in. with 8 in. between drill rows, conducted for five years 

 and comprising 18 seeding tests, resulted in an average gain of 3.0S bu. of 

 grain and 29 lbs. of straw i^er acre in favor of the 8-in. drilling. 



Experiments with large and small seed and the use of unscreened seed, or 

 of the grain as it came from the thrasher, were begun in 1909 and the selection 

 of the seed from year to year was continuous. The three grades were sown 

 at a uniform rate and at a varied rate to distribute as nearly as possible the 

 same number of seeds per plat. The difference in the average yields for 10 

 years between large and small seed in the uniform and varied rates of 

 seeding was 6.11 and 5.81 bu., respectively, but with the uniform rate of seeding 

 the unscreened seed exceeded the large seed by 0.6 bu. per acre. 



In the average results for 11 years in comparing North Dakota grown with 

 Ohio grown seed there was a gain of 2.89 bu. in favor of the North Dakota 

 seed, and the weight per bushel of each class was maintained. Variety 

 tests in progress for 10 years showed a difference of 16.23 bu. per acre between 

 the highest and the lowest yields. The varieties standing highest, given in order 

 of their rank, were as follows: Ohio 6203, Silvermine, English Wonder, Ohio 

 6222, American Banner, Golden . Rain, Sixty-day, Big Four, Lincoln, and 

 Improved American. 



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