CONTENTS. 7 



Department Bulletin No. 999. — Prices of Farm Products in the United 



States — Continued. Page. 



What can be clone? 22 



Summary 25 



Tables 27 



Department Bulletin No. 1000. — Labor and Material Requirements of 

 Field Crops : 



Introduction 1 



Method of presentation 4 



Corn 5 



Corn silage 8 



Cotton 11 



Potatoes 15 



Sugar beets 19 



Tobacco . 22 



Beans 25 



Grain sorghums 28 



Wheat, spring and winter 29 



Oats 33 



Barley 36 



Rye 38 



Hay 40 



Grass-seed crops 45 



Apples 46 



Miscellaneous crops 49 



Method of using foregoing data in estimating costs 51 



Value of plow lands 53 



Labor distribution among farm enterprises 54 



