340 EXPEEIMENT STATION RECOED. 



applied on plowed ground before preparing the soil for a cultivated crop. The 

 seed win grow the same season and the young plants will be killed in the 

 preparation of the seed bed and the cultivation of the crop. Digging by hand 

 and removing from the field all portions of the plant, smothering with tar 

 paper, and spraying with a solution of sodium arsenite are best for the com- 

 plete eradication of quack grass on small spots. All methods of eradication on 

 large fields are based on thorough tillage. The implements found on any well- 

 equipped farm are all that are needed to eradicate quack grass. 



" The most effective bare-fallow method of eradication was plowing in 

 July 3 or 4 in. deep, replowing not later than August 15 5 or 6 in. deep ; and 

 again in November 6 or 7 in. deep. The disk was used as needed between plow- 

 ings to keep the quack grass from showing green above ground. The cost of 

 the additional labor necessary for complete eradication under this system was 

 $9.60 per acre. No crop was secured from the land that season. 



" CJomplete eradication of quack grass while following a system of crop ro- 

 tation was found practical when more than the ordinary amount of tillage was 

 given ... To be effective there must be a well-planned and carefully carried out 

 campaign with which other work is not allowed to interfere. Tillage operations 

 should injure the quack grass as much as po.ssible and should be repeated 

 often enough to make effective the work that has preceded. Eradication of 

 quack grass on land that has been plowed each year is more difficult than on 

 land that has been undisturbed for a number of years. 



" In carrying out the different rotations a regular plan of ' clean-up ' to 

 eradicate the quack grass was followed on each field with uniformly successful 

 results. The plan was varied on three of the fields to secure additional data. 

 A 4-year rotation on four fields, each one in turn having in successive years 

 grain, hay, corn, and corn, gives exceptional opportunity for the eradication 

 of quack grass. This rotation can be followed to advantage, e.specially on 

 fields where quack gra.ss is very vigorous or when weather conditions make the 

 eradication unusually diflicult. The average cost per acre of the labor neces- 

 sary for complete eradication, in addition to that which, under good farm prac- 

 tice, would be given the same fields growing identical crops, was as follows: 

 Five-year rotation, $10.10; 4-year rotation, $8.71; 3-year rotation, $13.45; 

 2-year rotation, $8.50; continuous cropping schemes, $7.7L'' 



HOETICULTITRE. 



The vegetable garden, R. L. Watts (.Veir York: Outing Publishing Co., 1915, 

 pp. 1S6, pis. 8). — A popular treatise on vegetable gardening, the first part of 

 which deals with the general principles of gardening, including where to grow 

 vegetables; hotbeds, cold frames, and greenhouses; starting early vegetable 

 plants ; tillage problems ; stable manures and cover crops ; commercial fer- 

 tilizers; the seed supply; marketing; intensive gardening; and the home garden. 

 The concluding chapter contains specific cultural directions for all of the com- 

 mon vegetables. Data relative to planting distances and quantity of seed re- 

 quired are appended. 



Cantaloup marketing in the larger cities, with car lots supply, 1914, W. A. 

 Sherman, A. D. Gail, Jr., and Faith L. Yeaw (U. S. Dept. Agr. Bui. S15 

 (1915), pp. 19, pi. 1, figs. 7). — This bulletin embraces the results of a study 

 made In a number of the larger markets in the East and Middle West in an 

 effort to determine the factors which underlie the successful handling and 

 marketing of cantaloups. In addition to a discus^sion of various factors in- 

 fluencing the industry, a map, charts, and tabular data are given showing the 

 sources, seasonal distribution, and total shipments of cantaloups In 1914. 



