42 LABORATORY MANUAL IN FIELD CROPS 



PRACTICUM NO. 33 



Object. A Study of Permanent Pasture Grasses. 

 Materials. Grass plats or fresh samples of the grasses. 



Method. Arrange in tabular form the following informa- 

 tion on the grasses given to consider : 



1. Botanical name. 



2. Foliage : large, abundant, fine, scarce. 



3. Foliage : tall, low, erect, drooping. 



4. Fibrous rooted : stoloniferous, rhizome. 



5. Inflorescence : spike, panicle. 



6. Tufted, tillering, sod forming. 



7. Easily killed out, difficult to kill out. 



8. Grasses to be studied : Kentucky blue grass, orchard 

 grass, brome grass, tall, oat grass, meadow fescue, timothy, 

 red top, English, rye grass, Bermuda grass, Italian rye grass. 



STUDIES 



1. What influence does the variety of plants have on the 

 value of pasture lands ? 



2. What are the advantages and the disadvantages 

 of planting grasses in mixtures? (Hunt's Forage and 

 Fiber Crops, p. 21 ; Livingston's Field Crop Production, 

 p. 371.) 



3. How many plants to the acre are desired in pasture lands 

 and how many seeds should be sown to secure this? (See 

 Hunt's Forage and Fiber Crops, pp. 12-13 ; Bailey's Cyclopedia 

 of American Agriculture, Vol. 2, p. 439; Livingston's Field 

 Crop Production, p. 372.) 



4. Name four factors to be considered in choosing varieties 



